answer : a questionin order to measure the flow with a venturimeter, it is installed in a ain any...

Answer : A

Question In order to measure the flow with a Venturimeter, it is installed in a

A in any direction and in any locationB horizontal lineC vertical lineD inclined line with flow upwards

Answer : B

Question A rotameter is used to measure

A velocity of fluidsB flow of fluidsC velocity of gasesD specific gravity of liquids

Answer : C

Question The value of coefficient of discharge is .....the value of coefficient of velocity for an orifice.

A same as B more thanC less thanD None of the above

Answer : C

Question Pizometric head is the addition of …………A Pressure head, kinetic head

Kinetic head and datum headC Pressure head and datum headD None of above

Answer : C

Question The distance between H.G.L. and T.E.L is shown by …………head.

A Pressure B DatumC Velocity D Total

Answer : D

Question As per Bernoulli’s theorem, the sum of pressure head, velocity head and datum head for ideal fluid…………

A Changes point to pointB Increase in the direction of flowC Decrease in the direction of flowD Remains constant

Answer : D

Question The modified Bernoulli’s equation = Total head plus ……………A Pressure headB Velocity headC Datum headD Head loss

Answer : A

Question The “throat” is the component part of ……………..A VenturimeterB OrificeC Pitot tubeD Nozzle meter

Answer : A

Question At vena contracta fluid jet is having …………diameter than diameter of orifice.A LessB MoreC EqualD Half

Answer : A

Question Mouthpiece is used to minimize the effect of ………………..

A Vena contractaB Velocity of approachC End contractionD Variation of pressure

Answer : B

Question To measure the discharge of river most suitable device will be………….

A NotchB WeirC VenturiflumeD venturi meter

Answer : D

Question A pipe of length more than double the diameter of orifice fitted externally or internally to the orifice is called a

A NotchB WeirC MouthpieceD Nozzle

Answer : B

Question In an internal mouthpiece, if the jet after contraction does not touch the sides of the mouthpiece, then the mouthpiece is said to be

A Running fullB Running freeC Partially running fullD Partially running free

Answer : B

Question The value of coefficient of velocity for a sharp edged orifice __________ with the head of water.

A DecreasesB IncreasesC Depends on diameter of orificeD Depends on type of orifice

Answer : C

Question An orifice is said to be large, if

A The size of orifice is largeB The velocity of flow is largeC The available head of liquid is more than 5 times the height of orificeD The available head of liquid is less than 5 times

the height of orifice

Answer : D

Question When a liquid is flowing through a pipe with a velocity of V , the total energy in the flowing fluid is

A Kinetic energyB Potential energyC Elevation energyD All of above

Answer : D

Question Which direction must a Pitot tube face in order to calculate the speed of a fluid?

A Direction is not a criteriaB Normal to the flow only. C Both normal to the flow and parallel to the flow. D Parallel and facing flow

Answer : D

Question Which one of the following statements is true ?

A The value of kinetic energy correction factor for turbulent flow lies between 1.03 to 1.06

B The value of kinetic energy correction factor for laminar flow is 2

C The practical value of kinetic energy correction factor for turbulent flow is unityD All the above.

Answer : D

Question Flow of water in pipes of diameter more than 3 meters, can be measured by

A Pitot tubeB VenturimeterC Orifice plateD Rotameter.

Answer : D

Question Hydraulic coefficient of an orifice means the coefficient of

A VelocityB ContractionC ResistanceD all the above.

Answer : A

Question A weir is used to measure the large water discharge rate from a river or from an open channel. A weir is not of __________ shape.

A CircularB RectangularC Triangular .D Trapezoidal

Answer : C

Question With increase in the ratio of orifice diameter to pipe diameter in case of an orificemeter, the overall pressure loss

A DecreasesB IncreasesC Remains constantD Increases linearly

Answer : B

Question The discharge formula through orifice, Q = Cd2gH x A is known as

A Actual velocityB Actual dischargeC Theoretical discharge D None of above

Answer : A

Question Flow rate of high velocity flue gas discharged through a stack to the atmosphere can be most conveniently measured by a

A Pitot tubeB ManometerC RotameterD None of these

Answer : A

Question In an external mouthpiece, the absolute pressure head at vena contracta is __________ the atmospheric pressure head by an amount equal to 0.89 times the height of the liquid, above the vena contracta.

A 1V-A4B More thanC Equal toD None of the above

Answer : B

Question: The study of motion of fluid with forces which causes the flow is known as

A fluid kinematicsB fluid dynamicsC fluid staticsD none of the above

Answer : C

Question Which of the following statement is wrong?

A A flow whose streamline is represented by a curve, is called two dimensional flow.

B The total energy of a liquid particle is the sum of potential energy, kinetic energy and pressure energy.

C The length of divergent portion in a venturimeter is equal to the convergent portion.

D A pitot tube is used to measure the velocity of flow at the required point in a pipe.

Answer : D

Question The discharge over a triangular notch is

A inversely proportional to H3/2B directly proportional to H3/2C inversely proportional to H5/2D directly proportional to H5/2

Answer : B

Question: In dynamics of fluid flow the flow mainly depends on the

A hydrostatic lawB Newton’s lawC conservation of energyD Darcy’s law

Answer : B

Question: The study of motion of fluid with forces which causes the flow is known as

A fluid kinematicsB fluid dynamicsC fluid staticsD none of the above

Answer : D

Question In fluid dynamics which of the following forces are predominant

A pressureB gravity C viscous and surface tension D all the above

Answer : D

Question The equation for Reynolds number is

A m.a = Fg+ Fp+ Fv

B m.a = Fg+ Fp+ Fv+ Ft+ Fc

C m.a = Fg+ Fp+ Fv+ Ft+ Fc+ Fs

D m.a = Fg+ Fp+ Fv+ Ft

Answer : D

Question The equation for Euler’s number is

A m.a = Fg+ Fp+ Fv

B m.a = Fg+ Fp+ Fv+ Ft+ Fc

C m.a = Fg+ Fp+ Fv+ Ft+ Fc+ Fs

D m.a = Fg+ Fp

Answer : A

Question The equation for Navier-stokes number is

A m.a = Fg+ Fp+ Fv

B m.a = Fg+ Fp+ Fv+ Ft+ Fc

C m.a = Fg+ Fp+ Fv+ Ft+ Fc+ Fs

D m.a = Fg+ Fp

Answer : B

Question Rise or Fall of HGL in the direction of flow depends on …..

A change in velocity B change in pressureC change in temperatureD all of the above

Answer : B

Question For real fluid the TEL is ……. With the direction of flow

A vertical B curvilinearC inclined D none of the above

Answer : B

Question For drawing HGL which of the following is attached to pipeline.

A barometerB piezometerC pressure gaugeD none of the above

Answer : C

Question Venturimeter consists of which components

A throatB converging and diverging coneC both of above a &bD none of the above

Answer : D

Question The diameter of the inlet section of venturimeter will be

A half of pipe diameter B twice of pipe diameterC one-third of pipe diameterD same as that of pipe

Answer : A

Question The tapered portion from pipe to throais known as

A converging cone B diverging cone C throat D none of the above

Answer : B

Question The maximum angle of converging cone is

A 6 0

B 200

C 100

D none of the above

Answer : A

Question The diameter of throat is generally taken as

A half of pipe diameter B twice of pipe diameterC one-third of pipe diameterD same as that of pipe

Answer : A

Question When an internal mouthpiece is running free, the discharge through the mouthpiece is (where a = Area of mouthpiece, and H = Height of liquid above the mouthpiece)

A 0.5 a√2gHB 0.707 a√2gHC 0.855 a√2gHD a√2gH

Answer : A

Question Re-entrant or Borda's mouthpiece is an __________ mouthpiece.

A Internal .B ExternalC ConvergentD Divergent

Answer : A

Question When the coefficient of discharge (Cd) is 0.623, then the general equation for discharge over a rectangular weir is

A 1.84(L - 0.1nH)H3/2

B 1.84(L - nH)H2

C 1.84(L - 0.1nH)H5/2

D 1.84(L - nH)H3

Answer : B

Question The difference between the notch and weir is that the notch is of bigger size and the weir is of a smaller size.

A AgreeB DisagreeC There is no differenceD Weir is used for river and notch for pipes

Answer : C

Question The most serious disadvantage of an orificemeter is that

A It is not very accurate.B It is very costly.C Most of the pressure drop is not recoverable.D It is very small

Answer : A

Question Which of the following relationship is valid for the equilibrium position of the float in a rotameter ?(where, Df= Drag force on the float Bf = Buoyant force on the float Wf = Weight of the float)

A Df + Bf = WfB Df = Bf + WfC Df + Bf + Wf =0D none of these

Answer : A

Question Though angle of deviation of liquid is more in internal mouth piece, the contraction of the jet, isA More in the internal mouth pieceB Less in the internal mouth pieceC Equal to external mouth pieceD None of these.

Answer : C

Question Water flows through a convergent mouthpiece of diameter 4 cm at convergence under a head of 3 metres. If the maximum vacuum pressure is 9 metres of water, the maximum diameter of divergence, to avoid separation of flow, isA 4 cmB 6 cmC 2 cmD 23 cm.

Answer : C

Question Fig shows a venturimeter having inlet &throat area of 0.07 m2 &0.01767m2

carrying oil of Sp gr 0.9 in upward direction. If the manometric deflection is 25 cm the discharge of oil is

A 0.18 2m3/sB 0.351m3/sC 0.148m3/sD 1.5m3/s

Answer : B

Question A 4 cm diameter orifice in the vertical side of the tank discharges water. The water surface in the tank is at a

constant level of 2.0 m above the centre of orifice. If head loss in the orifice is 0.20 m and the co-efficient of contraction is

0.63, determine the discharge through the orifice, if Cv = 0.95.

A 0.001 m3/sB 0.0047 m3/sC 2.5 m3/sD 0.03m3/s

Answer : D

Question:At a section A in the horizontal pipe , the diameter 6 cm pressure 80 kN/m2and velocity is 32 m/s. The total energy of A is ……..

A 18.9 mB 50.6 mC 56.2 m D 60.4 m

Answer : C

Question:A 4 cm diameter orifice in the vertical side of the tank discharges water. The water surface in the tank is at a constant level of 2.0 m above the centre of orifice. If head loss in the orifice is 0.20 m and the co-efficient of contraction is

0.63, determine the value of coefficient of discharge.

A 0.98B 0.65C 0.59D 0.75

Answer : B

Question:A 4 cm diameter orifice in the vertical side of the tank discharges water. The water surface in the tank is at a constant level of 2.0 m above the centre of orifice. If head loss in the orifice is 0.20 m and the co-efficient of contraction is

0.63, determine the discharge through the orifce, if Cv= 0.95

A 0.001 m3/sB 0.0047 m3/sC 2.5 m3/sD 0.03 m3/s

Answer : A

Question: Oil flows through a 25 mm diameter orifice under a head of 5.5 m at a rate of 3 lps. The jet strikes at a wall 1.5 m away and 120 mm vertically below the center line of the

contracted jet. Calculate the co-efficient of discharge.

A 0.58B 0.66C 0.75D 0.90

Answer : B

Question:A 10 cm diameter pipe has a nozzle at its end. If the velocity in the pipe is 2.5 m/s and the pressure is 50 kpa, determine the velocity of jet. Consider Cv= 0.98

A 0.911 m/sB 10.11 m/sC 15.23 m/sD 0.112 m/s

Answer : C

Question:A 10 cm diameter pipe has a nozzle at its end. If the velocity in the pipe is 2.5 m/s and the pressure is 50 kpa, calculate the diameter of jet , Consider Cv= 0.98

A 0.5 cmB 2.5cmC 4.9 cmD 5.5 cm

Answer : A

Question:A 10 cm diameter pipe has a nozzle at its end. If the velocity in the pipe is 2.5 m/s and the pressure is 50 kpa, calculate the head loss in the jet. Consider Cv= 0.98

A 0.215 mB 1.215 mC 0.555 mD 1.555 m

Answer : B

Question Venturimeter, orificemeter and nozzles are used to measure the fluid discharge from a pipeline. The average fluid velocity in a pipeline can be measured by a

A WeirB Hot wire anemometerC Cup and vane anemometerD None of these

Answer : C

Question If a pitot tube is placed with its nose facing downstream, the liquid

A Does not rise in the tubeB Rises in the tube to a certain height C Falls in the tube to a depth D None of above

Answer : C

Question The discharge through an internal mouth piece is more if its length is

A < diameterB <diameterC ≥ diameterD none of these.

Answer : D

Question The Euler’s equation of motion

A is a statement of energy balance B is a preliminary step to derive the Bernoullis

equation C statement of conservation of momentum for a

real fluid D statement of conservation of momentum for

the flow of an inviscid fluid

Answer : A

Question When no external energy is imposed , which of the following statements would be true ?

1.Energy line always falls in the direction of flow 2.Hydraulic gradient line never rises in the direction of flow 3.Specific energy may increase or decrease in the direction of flow 4.Energy line and hydraulic gradient line can cross each

other A 1 and 2 B 2 and 3 C 3 and 4 D 1 and 3

Answer : D

Question Least possible value of correction factor for

1 kinetic energy is zero 2. Kinetic energy is 1 3. momentum is zero 4. momentum is 1 The correct statements isA 1 and 3 B 2 and 3 C 1 and 4 D 2 and 4

Answer : C

Question The derivation of momentum equation Fx= ρQ{(V2)x–(V1)x) is based on certain assumptions

1. steady flow 2 .uniform flow 3 .velocity constant over the inlet and outlet cross sections4 .irrotational flow A 1,2 B 1,4 C 1 ,3 D 4,5

Answer : B

Question The change in moment of momentum of fluid due to flow along a curved path results in

A a dynamic force which passes through the centre of curvature B torque C a change in pressure D a change in kinetic energy of jet

Answer : C

Question The integration of the Eulers equation results in the Bernoulli’s equation. The Bernoulli constants for points lying on the same streamline and those which lie on other streamlines will have the same value if the flow is

A incompressible B steady C irrotational D uniform

Answer : A

Question The correct statement with respect to flow through venturimeter

A Fluid flows from convergent, throat,diverging section

B Fluid flows from diverging, throat, convergent section

C Fluid flows from Inlet, throat, diverging section

D Fluid flows from inlet, diverging section, exit

Answer : B

Question Linear momentum equation is the mathematical form of

A Conservation of mass B Conservation of momentumC Conservation of EnergyD Newton law of motion

Answer : C

Question Forces developed due to flow through bend ,elbow in a pipe line can be analyzed by

A Newton law of motionB Bernoulli equationC Momentum equationD Continuity equation

Answer : D

Question The shape of orifice is….

A circularB rectangularC triangularD all of the above

Answer : C

Question The size of orifice can be……

A small B large C A or BD none of the above

Answer : C

Question The nature of the edge of the orifice is ….A bell mouthed B sharp edged C Flat edge D All of above

Answer : D

Question The condition of discharge of orifice is …

A free orifice B fully submerged C partially submergedD all of the above

Answer : D

Question The Toricelli’s expression is represented as..

A V2= Cc √ 2gxh)B V2= Cv √2 gxh)C V2= Cd √ 2gxh)D V2= √2gxh)

Answer : C

Question If the whole of the outlet side of an orifice is submerged under liquid so that it discharges the jet of liquid into the liquid of same type , it is known as …

A small orifice B large orificeC drowned orificeD free orifice

Answer : B

Question The bottom edge of the notch over which the liquid flows through is called as,

A nappeB crest C trough D none of the above

Answer : B

Question The distance of crest from the bottom of tank is known as…..

A crest B crest heightC notch D none of the above

Answer :A

Question The sheet of liquid flowing over the notch is called as

A nappe B crest C crest height D all the above

Answer : B

Question . ………. is an opening provided at the side of the tank such that the liquid surface in the tank is below the top edge of the opening.

A orifice B notch C weirD none of the above

Answer : D

Question The shape of notch is

A rectangular B triangularC circularD all the above

Answer : C

Question The stream of liquid coming out of orifice is called as …

A venacontracta B head of waterC jet D nappe

Answer : B

Question ……. is defined as a definite volume fixed in space such that the flow takes place into and out of this volume.

A control surfaceB control volume C specific volumeD none of the above

Answer : A

Question Bernoulli's equation is applicable to

A Steady flowB Unsteady flowC Both steady and unsteady flowD None of the above.

Answer : B

Question Bernoulli's equation is applicable to

A Compressible flowB In compressible flowC Both compressible and incompressible flow

D None of the above.

Answer : D

Question The kinetic energy correction factor

A has units of velocity headB applies to the continuity equationC modifies the Bernoulli's constant in the energy

equationD accounts. for the non-uniform distribution of

velocity across the section

Answer : C

Question The value of kinetic energy correction factor for laminar flow through a circular pipe is approximately equal to

A 1.0B 1.5C 2.0D 2.25

Answer : B

Question The momentum correction factor is given by the relation:

A (1/A ) ∫( v/V)dAB (1/A ) ∫( v/V) 2dAC (1/A ) ∫( v/V) 3dAD (1/A ) ∫( v/V) 4dA

Answer : D

Question The value of momentum correction factor for laminar flow through a circular pipe is approximately equal to:

A 0.75B 0.87C 1.02D 1.33

Answer : C

Question Which of the following equations is known as momentum principle:

A F = d/dt(m 2v)B F = dv/dtC F = d/dt (mv)D F = d/dt2(mv)

Answer : B

Question The Pizometric head is the summation of

A velocity head and pressure headB pressure head and elevation headC velocity head and elevation headD none of the above.

Answer : C

Question The total energy-line is always higher than the hydraulic gradient line, the vertical distance between the two representing:

A the pressure headB the piezometric headC the velocity headD none of the above.

Answer : B

Question The Bernoulli's equation written in the form of p/w + V2/2g+z= constant represents total energy per unit of certain quantity. Identify this quantity from the choices given below

A energy per unit massB energy per unit weightC energy per unit volumeD energy per unit specific weight

Answer : A

Question The differential manometer connected to a Pitot static tube used for measuring

fluid velocity gives

A Dynamic pressure. B total pressure C static pressureD Difference between total pressure and dynamic

pressure.

Answer : B

Question The hydraulic gradient-line indicates the direction of which of the following:

A Velocity head in flow directionB Piezometric head in the direction of flowC Total energy of flow in the directionD None of the above.

Answer : C

Question The momentum correction factor β is used in account for:

A change in direction of flowB change in total energyC non-uniform distribution of velocities at inlet

and outlet sectionsD change in mass rate of flow.

Answer : D

Question For a perfect incompressible liquid, flowing in a continuous stream, the total energy of a particle remains the same, while the particle moves from one point to another This statement is called

A Pascal's law B Archimede's principleC Continuity equation D Bemoulli's equation

Answer : D

Question When the venturimeter is inclined, then for a given flow it will show ....reading.

A maximum B moreC lessD same

Answer : B

Question The pressure of the liquid flowing through the divergent cone of Venturimeter will ---- as compared to its converging cone _

A remains constantB increases C depends upon mass of liquidD decreases

Answer : A

Question The terms p/ρg is known as _

A pressure energy per unit weightB kinetic energy per unit weight C pressure energyD none of the above

Answer : A

Question The term Z is known as

A potential energy per unit weightB potential energy C pressure energyD none of the above

Answer : A

Question All terms of energy in Bernoulli's equation have dimension of

A length B energy C work D mass

Answer : B

Question The discharge through the Venturimeter is given by

A Cd√(a12-a2

2) √(2gh) /(a1a2)

B Cd (a1a2)√(2gh) /(√(a12-a2

2)) C Cd(a1-a2)√(2gh) / (a1+a2)

D Cd√(a1a2) √(2gh) /(a1+a2)

Answer : A

Question The difference of pressure head (h) measured by a differential manometer containing lighter liquid is-----where x = difference of mercury level,Sm = specific gravity of mercury and So = specific gravity of oil

A h=x(1-Sm/So)B h=x(Sm/So-1)C h=x(Sm-So))D None of the above

Answer : A

Question The rate of flow through a Venturimeter varies as

A H(1/2)

B H(3/2)

C H(5/2)

D H

Answer : A

Question The units of discharge can be

A cumecB TMCC Mm3

D All of above

Answer : A

Question The large angle of converging cone is because of

A accelerating the velocity of flowB decreasing the velocity of flowC maintain the flow D none of the above

Answer : C

Question Divergent cone of venturimeter is used to convert….

A pressure energy into potential energy B pressure energy into kinetic energyC kinetic energy into pressure energyD none of the above

Answer : C

Question In an inclined venturimeter if a differential manometer is used to measure the pressure head difference between the inlet and the throat then the reading on the manometer is independent of

A area of inlet and throatB specific weight of flowing fluid C angle of inclinationD level of manometer

Answer : A

Question The principle used in pitot-tube is …..

A velocity of flow is reduced to zero and velocity head is converted to pressure head.

B velocity of flow is maximum and velocity head is converted to pressure head.

C velocity of flow is reduced to zero and pressure head is converted to velocity head.

D all of the above

Answer : D

Question Pitot- tube is ……..

A open at both endsB bent at right anglesC for measurement of velocity of flowD all of the above

Answer : B

Question In case of orifice meter the pressure difference is measured between ….

A inlet and throatB inlet and venacontractaC venacontracta and outletD none of the above

Answer : C

Question The section of flow which converges to a minimum after it moves out of orifice is known as

A orificeB ventureC venacontractaD notch

Answer : A

Question The theoretical rate of flow is higher in

A venturimeterB orifice meterC both of the above D none of the above

Answer : A

Question Venturimeter is preferable for..

A measurement of flow in large pipesB measurement of flow in smaller pipesC Measurement of velocity in large pipesD Measurement of Pressure in large pipes

Answer : A

Question A rotameter works on the principle of __________ pressure drop.

A ConstantB VariableC Both (a) &(b)D Neither (a) nor (b)

Answer : A

Question An orifice is an opening in a vessel with

A Closed perimeter of regular shape through which water flowsB The water level of the liquid on the upstream

side is below the top of the orificeC Partially full flowD Prolonged sides having length of 2 to 3 diameters of the opening in thick wall.

Answer : B

Question Discharge through a totally submerged orifice, is directly proportional to

A Difference in elevation of water surfacesB Square root of the difference in elevation of water surfaceC Square root of the openingD Reciprocal of the area of the opening

Answer : D

Question Pick up the correct statement regarding convergent divergent mouth piece from the following :

A It converges upto Venacontracta and then divergesB In this mouth piece there is no loss of energy

due to sudden enlargementC The coefficient of discharge is unityD All the above.

Answer : C

Question Select the wrong statement pertaining to flow of an incompressible fluid through a venturimeter.

A For frictionless flow, the fluid pressure entering the venturi meter will be exactly equal to that leaving the venturimeter.

B Discharge of fluid through a venturimeter depends upon the gage difference irrespective of the orientation of venturimeter.C Venturimeter occupies less space than an orificemeter.D Venturimeter incurs less power loss compared

to an equivalent orificemeter

Answer : C

Question In an inclined position, a Venturimeter records

A More readingB Less readingC Same readingD None of these.

Answer : A

Question When a liquid is flowing through a pipe, the velocity of the liquid is

A Maximum at the centre and minimum near the walls

B Minimum at the centre and maximum near the walls

C Zero at the centre and maximum near the walls

D Maximum at the centre and zero near the walls

Answer : C

Question Which is not a variable head meter?

A VenturimeterB Pitot tubeC RotameterD None of these

Answer : D

Question The line joining the points to which the liquid rises in vertical piezometer tubes fitted at different cross-sections of a conduit, is known as

A Hydraulic gradientB Piezometric lineC Hydraulic grade lineD All the above.

Answer : B

Question Vena-contracta pressure tapping is at a distance __________ from the position of an orificemeter fitted in a pipe of internal diameter 'd'

A dB 0.5 dC 2dD 4d

Answer : A

Question In case of a rotameter, the density of the float material is __________ that of the liquid it replaces.

A More thanB Less thanC Equal toD Either (a) or (b)

Answer : D

Question Which of the fluid forces are not considered in the Reynold's equation of flow ?

A Viscous forcesB Turbulent forcesC Pressure forcesD Compressibility forces

Answer : A

Question Which of the following assumptions enables the Euler's equation of motion to be integrated?

A The fluid is incompressible.B The fluid is non-viscous.C The flow is rotational and incompressible.D Both a &b

Answer : C

Question Which is the most efficient and best for measuring very small flow rate of gases ?

A VenturimeterB Orifice meterC RotameterD Flow nozzle

Answer : D

Question Which of the following is used for very accurate measurement of flow of gas at low velocity ?

A Pitot tubeB RotameterC Segmental orificemeterD Hot wire anemometer

Answer : A

Question The discharge over a right angled notch is (where H = Height of liquid above the apex of notch)

A 8/15.Cd√2g x H5/2

B 8/15. Cd2√g x H3/2

C Cd√2g x H2

D Cd2g x H5/2

Answer : B

Question: The study of motion of fluid with forces which causes the flow is known as

A fluid kinematicsB fluid dynamicsC fluid staticsD none of the above

Answer : B

Question: The study of motion of fluid with forces which causes the flow is known as

A fluid kinematicsB fluid dynamicsC fluid staticsD none of the above

Answer : B

Question: The study of motion of fluid with forces which causes the flow is known as

A fluid kinematicsB fluid dynamicsC fluid staticsD none of the above

Answer : B

Question: The study of motion of fluid with forces which causes the flow is known as

A fluid kinematicsB fluid dynamicsC fluid staticsD none of the above

Answer : C

Question A weir is said to be broad crested weir, if the width of the crest of the weir is __________ half the height of water

above the weir crest.

A equal to.B less thanC more thanD None of above

Answer : C

Question The discharge through a large rectangular orifice is given by

(where H1 = Height of the liquid above the top of the orifice, H2 = Height of the liquid above the

bottom of the orifice, b = Breadth of the orifice, and Cd = Coefficient of discharge)A Q = Cd x b2g(H2 - H1)B Q = Cd x b2g(H21/2 - H11/2)C Q = Cd x b2g(H23/2 - H13/2)D Q = Cd x b2g(H22 - H12)

Answer : D

Question The maximum discharge over a broad crested weir is

A 0.384 Cd x L x H1/2

B 0.384 Cd x L x H3/2

C 1.71 Cd x L x H1/2

D 1.71 Cd x L x H3/2

Answer : D

Question The coefficient of discharge for an external mouthpiece is

A 0.375B 0.5C 0.707D 0.855

Answer : C

Question In …….. losses are more hence the value of co-efficient of discharge is low.

A pitot-tubeB venturimeterC orifice meterD rotameter

Answer : A

Question In order to calculate the velocity by pitot tube for a flowing stream it is dipped……

A vertically B horizontallyC inclinedD all the above

Answer : B

Question . …….. is an opening having a closed perimeter in the walls or bottom of a tank.

A throat B orificeC nozzleD mouthpiece

Answer : A

Question The discharge through an external mouthpiece is given by (where a = Cross-sectional area of the mouthpiece, and H = Height of liquid above the mouthpiece)

A 0.82 a√2gHB 1.855 a√H2gC 1.585 a√2gHD 5.85 a√H2g

Answer : B

Question If a pitot tube is placed with its nose upstream, downstream or sideways, the reading will be the same in every case.

A TrueB FalseC Depends on size of pitot tubeD Depends on viscosity of fluid

Answer : B

Question In area meter (e.g., rotameter), with increase in the fluid flow rate, the

A Pressure drop increases linearly.B Pressure drop is almost constant.C Area through which fluid flows does not vary.

D None of these.

Answer : D

Question Name the instrument which records the static pressure and stagnation pressure….

A pitot- tubeB prandtl pitot tubeC pitot static tubeD both b and c

Answer : D

Question In a steady flow, the diameter is doubled then the kinetic energy will be….

A halvedB doubledC decreased four timesD decreased 16 times

Answer : D

Question In an incompressible and steady fluid flow the diameter is doubled , then the velocity of flow will be…

A doubledB thriceC decreases twice D decreased four times

Answer : A

Question A fluid jet is discharged through a 100 mm diameter nozzle and its diameter of

vena contracta is 90 mm. Find the co- efficient of velocity if the value of Cd= 0.77

A 0.95B 0.99C 0.98D 0.90

Answer : D

Question If the velocity of flow is 4 m/s, then the velocity head should be…..

A 0.46 mB 1 mC 1.50 mD 0.815 m

Answer : C

Question A jet of water discharging from a 15 mm diameter orifice has a Cc= 0.56, determine the diameter of vena contracta?

A 10 mmB 15 mmC 20 mmD 25 mm

Answer : C

Question Two small circular orifices of diameter d1and d2respectively are placed on one side of a tank at depths of 25 cm and 1 m below the constant surface of water. If the discharges

through orifices are same, then the ratio of the diameter will be….?

A 1: 2B √2: 2C √2: 1D 1:1

Answer : A

Question The forces on pipe bend can be obtained by using

A Momentum and continuity equationsB Momentum and Energy equationsC Energy and continuity equationD Momentum equation alone.

Answer : B

Question If the velocity in a cross-section is non-uniform, the K.E. of fluid per Newton is given by

A V2/2gB αV2/2gC βV2/2gD p/ρg

Answer : D

Question For the flow in a pipe correct state regarding the kinetic energy correction factor is

A α laminar<αturbulent

B α laminar= αturbulent

C α laminar=1.33D αturbulent =2

Answer : B

Question State which of the following statement is False.

A Flow work is the work associated with pushing a fluid into or out of a control volume per unit mass.

B The sum of static and dynamic pressures is called the total pressure.C The sum of all external forces acting on a system equals the time rate of change of linear momentum of the system.D The effect of non-uniform velocity distribution

of momentum flux is taken care of by using a factor called momentum corrector factor.

Answer : B

Question State which of the following statement is not true

A The effect of non-uniform velocity distribution of momentum flux is taken care of by using a factor called momentum corrector factor.

B During free vortex motion, the rate of change of angular momentum of the flow must remain constant with finite magnitude ..

C A propeller is a revolving mechanism which uses the torque of a shaft to produce axial thrust.D The torque acting on a rotating fluid is equal to

the rate of change of moment of momentum.

Answer : D

Question The Euler's equation of motion can be integrated only when

A the fluid is compressibleB the flow is steady and IrrotationalC the flow is non-viscous D Both B&C

Answer : A

Question An orifice is said to be large, if _

A the available head of liquid is less than 5 times the height of orifice

B the size of orifice is largeC the velocity of flow is largeD the available head of liquid is more than 5 times the height of orifice

Answer : A

Question The coefficient of velocity is less than 1 because

A h, measured by pitot tube is theoreticalB Opening at start of pitot tube is very smallC Flow velocity is less D None of the above

Answer : A

Question:A person suffering from shortness of breath visits a doctor, who discovers that blood flow in an artery (shown here) is severely restricted, noting that the flow at position 2 in the artery is three times faster than at position 1. (For the purposes of this problem, assume human blood is an ideal fluid.)

Based on the information given, the differences in the blood pressure at position2 relative to position 1 can be described as

A the blood pressure must be lower at position 2 than at position 1.

B the blood pressure must be lower at position 1 than at position 2.

C the blood pressure must be equal at position 1 and 2.D None of the above

Answer : A

Question A person suffering from shortness of breath visits a doctor, who discovers that blood flow in an artery (shown here) is severely restricted, noting that the flow at position 2 in the artery is three times faster than at position1

(For the purposes of this problem, assume human blood is an ideal fluid.) the ratio of r1to r2

A 1.73B 2.7C 7.1D 3.0

Answer : A

Question:A person suffering from shortness of breath visits a doctor, who discovers that blood flow in an artery (shown here) is severely restricted, noting that the flow at position 2 in the artery is three times faster than at position 1. (For the purposes of this problem, assume human blood is an ideal fluid.

If the average density of human blood is 1060 kg/m3and the blood's speed at position 1 is 0.1 m/s, then the pressure gradient ΔP between positions 1 and 2 (assume the heights of 1and 2 are equal).

A 42 Pa.B 72 Pa.C 12 Pa.D 32 Pa.

Answer : C

Question A 4 cm diameter orifice in the vertical side of the tank discharges water. The water surface in the tank is at a constant level of 2.0 m above the centre of orifice. If head loss in the orifice is 0.20 m and the co-efficient of contraction is 0.63, determine the value of coefficient of discharge. A 0.98B 0.65C 0.59D 0.75

Answer : B

Question A 4 cm diameter orifice in the vertical side of the tank discharges water. The water surface in the tank is at a

constant level of 2.0 m above the centre of orifice. If head loss in the orifice is 0.20 m and the co-efficient of contraction is

0.63, determine the discharge through the orifice, if Cv= 0.95.

A 0.001 m3/sB 0.0047 m3/sC 2.5 m3/sD 0.03 m3/s

Answer : C

Question A 4 cm diameter orifice in the vertical side of the tank discharges water. The water surface in the tank is at a

constant level of 2.0 m above the centre of orifice. If head loss in the orifice is 0.20 m and the co-efficient of contraction is

0.63, determine the value of coefficient of discharge.

A 0.98B 0.65C 0.59D 0.75

Answer : D

Question At a section A in the horizontal pipe, the diameter 6 cm, pressure 80 kN/m2and velocity is 32 m/s. The total energy of A is ……..

A 18.9 mB 50.6 mC 56.2 m D 60.4 m

Answer : D

Question If the velocity of flow is 4 m/s, then the velocity head should be…..

A 0.46 mB 1 mC 1.50 mD 0.815 m

Answer : B

Question A 10 cm diameter pipe has a nozzle at its end. If the velocity in the pipe is 2.5 m/s and the pressure is 50 kpa, determine the velocity of jet. Consider Cv= 0.98

A 0.911 m/sB 10.11 m/sC 15.23 m/sD 0.112 m/s

Answer : D

Question:A horizontal pipe of cross sectional area 5 cm2is connected to a venturimeter of throat area 3

cm2 as shown in figure. If the manometric reading is 5 cm of water, the discharge in cm3/s is

A 0.45B 5.50C 2.10D 3.70

Answer : C

Question: Point A of head ‘HA’ is at a higher elevation than point B of head ‘HB’.The head loss between these points is HL.The flow will take place

A Always from A to BB From A to B if HA+HL= HB

C From B to A if HA +HL= HB

D From B to A if HB +HL= HA

Answer : A

Question Water flows through a converging – diverging pipe. total energy line (TEL) &Hydraulic gradient line(HGL) drawn is A CorrectB IncorrectC Insufficient dataD None of the above

Answer : C

Question Water flows through a tapering pipe from 1 to 2,The totalenergy line (TEL) &Hydraulic gradient

line(HGL) drawnis shown in fig.With respect to total energy line (TEL) &Hydraulic

gradient line(HGL) drawn as shown in fig which of the following statement is correctA Both total energy line (TEL) &Hydraulic gradient line(HGL) drawn is correctB Only total energy line (TEL) is correct &Hydraulic gradient line(HGL) is incorrectC Only Hydraulic gradient line(HGL) is correct &total

energy line (TEL) is incorrectD Both total energy line (TEL) &Hydraulic gradient line(HGL) drawn is incorrect

Answer : A

Question A long pipe as shown if fitted with venturimeter 'V '&orifice-meter 'O'.If the rate of discharge measured at A &B are Q A &QB,The relation of Q A &QB, is

A Q A =QB,B Q A >QB,C Q A <QB,D None of above

Answer : B

Question A container is filled with 30 cups of water to an height of ‘h’ .If it is allowed to flow out into another container at a rate of 1cup of water per minute, the total water will be emptied in

A 30 minutesB More than 30 minutesC Less than 30 minutesD Can’t say

Answer : B

Question: The total energy line (TEL) &Hydraulic gradient line(HGL) drawn for the pipe is shown in fig below

A Both total energy line (TEL) &Hydraulic gradient line(HGL) drawn is correct

B Both total energy line (TEL) &Hydraulic gradient line(HGL) drawn is incorrect

C Only total energy line (TEL) is correctD Only Hydraulic gradient line(HGL) drawn is correct

Answer : B

Question When fluid flows through the variable section pipe shown, the total energy line (TEL) &Hydraulic gradient line(HGL) is

A Both total energy line (TEL) &Hydraulic gradient line(HGL) drawn is correct

B Only total energy line (TEL) is correct C Only Hydraulic gradient line(HGL) is correct

D Both total energy line (TEL) &Hydraulic gradient line(HGL) drawn is incorrect

Answer : B

Question: Water flows through a tapering pipe having areas of 0.0707 m2 &0.01767m2 .The elevation head is as shown in fig.When a discharge of 40 lps flows through the pipe, the pressure at 1 is 400 kN/m2,the pressure at section 2 is,

A 450.85 kN/m2

B 436.8 kN/m2

C 322.8 kN/m2

D 155.6 kN/m2

Answer : B

Question:A uniform diameter pipe of 25 cm is placed inclined as shown. During the flow of a fluid, the energy loss at section 1-1 is 15.187m and that at 2-2 is 14.122m was observed.The fluid flow is from

A 1-1 to 2-2B 2-2 to 1-1C Flow do not take place in inclined pipe as shownD None of the above

Answer : A

Question:A venturimeter of throat diameter 5 cm is fitted into the 12.5 cm diameter water pipeline. The co-efficient of discharge is 0.96. When the U-tube manometer is connected between the upstream and the throat sections the reading on the mercury –water shows 20 cm. Calculate the rate of flow.

A 13.4 lpsB 10.5 lpsC 1.5 lpsD 100 lps

Answer : B

Question:A vertical venturimeter 40 cm X 20 cm is provided in a vertical pipe to measure the flow of oli whose relative density is 0.80. The difference in elevations of throat and entrance section is 1 m. The direction of flow is vertically upward. The oil mercury differential gauge s hows deflection of mercury equal to 40 cm. Determine the quantity of oil flowing in the pipe. Neglect losses.A 1.00 m3/sB 0.36 m3/sC 0.55 m3/sD 1.55 m3/s

Answer : A

Question:A pipe carrying water has 30 cm x 15 cm venturimeter which is positioned at 30oto the horizontal. The flow is upwards. The converging cone is 45 cm in length and the value of Cdis 0.98. A differential U- tube manometer with mercury as indicating fluid is connected to the inlet and throat shows a column height of 30 cm. Calculate the discharge in the pipe.A 154 lpsB 160 lpsC 150 lpsD 100 lps

Answer : B

Question: The study of motion of fluid with forces which causes the flow is known as

A fluid kinematicsB fluid dynamicsC fluid staticsD none of the above

Answer : A

Question:The throat diameter of a venturimeter is 6cm. It is used in 10cm diameter pipe carrying water at pressure of 50 kN/m2 If pressure at throat is 20 kN/m2, the differential pressure head is

A 3.058 m of water B 30 m of waterC 3 m of water D 40 m of water E None of the above

Answer : D

Question:A pipe 15 cm in diameter carries oil (sp. gr. = 0.75) at a rate of 70 lps. At a section 0.12 m

above datum the pressure is equivalent to 2 cm of mercury vacuum. If the kinetic energy correction factor for that section is 1.1 the total head at that section in meters of oil is

A 0.68B 0.75C 0.56D 0.64.

Answer : C

Question:A venturimeter of throat diameter10 cm is connected to a 20 cm diameter main carrying water. The head loss between the inlet and the throat is 0.1times the velocity head. The

differential head measurement is 30 cm. The manometric fluid has a relative density of 0.75. What is the co-efficient of the discharge of venturimeter?

A 0.58B 0.65C 0.95D 1.1

Answer : A

Question:A pipe carries a flow of an oil of R.D. = 0.85. A pitot static tube is inserted into the pipeto

measure the velocity of flow at point M. If a differential mercury oil gauge connected to pitot static tube indicates a reading of 4 cm. Calculate the velocity of flow at M. assume co- efficient of pitot tube as 0.99.

A 3.4 m/sB 1.5 m/sC 2.5 m/sD 3.0 m/s

Answer : A

Question:A jet of water discharging from a 20 mm diameter orifice has a diameter of 25 mm at its vena contracta. The coefficient of contraction is --A 0.64B 1.56C 1.64D 0.84

Answer : A

Question:A fluid jet is discharging from a 200 mm nozzle and the vena contracta formed has a diameter of 180 mm. If the coefficient of velocity is 0.97, then the co-efficient of discharge for a nozzle is

A 0.785B 0.815C 0.905D 0.705

Answer : A

Question:Two small orifices A and B of diameters 1.5 cm and 2.8 cm, respectively, are on the sides of a tank at depth of h1, and h2below the open

liquid surface. If the discharges through A and B are equal then the ratio of h1and h2(i.e.h1/ h2) assuming equal Cd values) will be,

A 12.4 : 1B 18.4 : 1C 11.44 : 1D 16 : 1

Answer : B

Question Consider the following assumptions1. The fluid s compressible2. The fluid is inviscid3. The fluid is incompressible and homogeneous4. The fluid is viscousThe Euler's equation of motion requires assumptions indicated inA 1 and 2B 2 and 3C 1 and 4D 3 and 4

Answer : A

Question Water flow steadily down a vertical pipe of constant cross section. Neglecting friction, according Bemoulli's equation,

_A Pizometric head decrease with height.B Pressure is constant along the length of pipe.

C Velocity decreases with height.D Pressure increased with height.

Answer : A

Question At a section A in a horizontal pipe, the pressure is 50 kN/m2and velocity is 25 m/s. Assuming the datum Z=0 m The

total energy of A is

A 36.95mB 30.95mC 32.95mD None of the above

Answer : A

Question A fluid is flowing through a horizontal pipe with non-uniform cross section which of the following quantities remains unchanged with respect to time?

A potential energy per unit volumeB kinetic energy per unit volumeC pressure energy per unit volumeD speed of flow

Answer : A

Question In a steady flow along a stream line at a location in the flow, the velocity head is 10m, the pressure head is 5 m, the potential head is 1 m. the height of Total Energy line at the location will be _

A 16mB 4mC 14mD 32m

Answer : D

Question If the water is flowing in a pipe with speed 5 m/s then its kinetic energy per unit weight is

A 0.46 m B 2.00mC 3.94mD 1.27mE None of the above

Answer : C

Question The divergent portion of a venturimeter is made longer than convergent portion in order to

A avoid the tendency of breaking away the stream of liquidB to minimize frictional lossesC both (a) and (b)D none of the above

Answer : B

Question Size of a venturimeter is specified by, _

A pipe diameterB both pipe diameter as well as throat diametC throat diameterD angle of diverging section

Answer : B

Question A pitot tube was inserted in a pipe to measure the velocity of water in it. If the water rises the tube is 400mm. The velocity of water will be

A 1.8 m/sB 2.8 m/sC 0.8 m/sD 2.98 m/s

Answer : A

Question A submarine is cruising at a depth 30 m is ocean water. If the forward speed of submarine is 20 m/s. The pressure head at pitot tube is ------

A 20.38mB 10.38mC 15.38mD 10.38m

Answer : A

Question Select the incorrect statement.

A Contraction is least at vena contractaB The pressure intensity at vena contracta is atmospheric.C Steam lines are parallel throughout the jet at

vena contracta.D Coefficient of contraction is always less than

one

Answer : B

Question In a laboratory, 15 litre of water was collected per second through a small orifice of 100mm diameter under a constant head of 475 mm. The coefficient of discharge for a orifice is _

A 0.4 B 0.6C 0.8D 0.9

Answer : C

Question The Navier- Stokes equation is used for ……….A analysis of compressible fluidsB analysis of elastic fluids C analysis of viscous fluidsD analysis of unsteady flow

Answer : B

Question:The diagram, which depicts a horizontal piping system, viewed from directly overhead, that delivers a constant flow of water through pipes of varying relative diameters labeled 1 through 5.

At which of the labeled points is the water in the pipe under the lowest pressure?

A 1B 2C 3D 4

Answer : B

Question:A fountain emitting a single stream of water (density 1000 kg/m3) at a playground is fed from a vertical pipe that is below ground but whose opening is at ground level as shown. At the ground-level opening, the pipe's diameter is 0.06 m and the water exits the pipewith a velocity of 9.0 m/s upward. The volume flow rate of the water as it exits the pipe.

A 10-2m3/sB 2.5 ×10-2m3/sC 1.5×10-2m3/sD 1.11 ×10-2m3/s

Answer : A

Question: A fountain emitting a single stream of water (density 1000 kg/m3) at a playground is fed from a vertical pipe that is below ground but whose opening is at ground level as shown. At the ground-level opening, the pipe's diameter is 0.06 m and the water exits the pipewith a velocity of 9.0 m/s upwardThe fountain's lower end of the underground pipe has a diameter of 0.12 m and is 6.0 m below the ground. The absolute pressure in the underground pipe at a depth of 6.0 m is

A P1= 2.00 x 105Pa.B P1= 2.00 x 106Pa.C P1= 3.00 x 105Pa.D P1= 3.00 x 106Pa.

Answer : A

Question:A person suffering from shortness of breath visits a doctor, who discovers that blood flow in an artery (shown here) is severely restricted, noting that the flow at position 2 in the artery is three times faster than at position 1. (For the purposes of this problem, assume human blood is an ideal fluid.)

Based on the information given, comment qualitatively on the diameter of this artery at position 2 relative to that at position 1.

A The cross-sectional area (and therefore the diameter) at position 2 must be much narrower than at position 1.

B The cross-sectional area (and therefore the diameter) at position 2 must not be narrower than at position 1.

C The cross-sectional area (and therefore the diameter) at position 2 must be equal to at position 1.

D None of the above

Answer : A

Question The rate of flow through a orifice meter varies as

A H(1/2)

B H(3/2)

C H(5/2)

D H

Answer : A

Question Cavitations is caused by

A Low pressureB High velocityC Low barometric pressureD High pressure

Answer : C

Question Separation of flow occurs due to reduction of pressure gradient to

A The extent such that vapour formation startB ZeroC Negligibly low valueD None of the above

Answer : C

Question The speed of the fluid is maximum in the Venturimeter at

A convergent ductB divergent ductC throatD none of these

Answer : D

Question Coefficient of resistance is defined as the ratio of _

A actual velocity of jet at vena contracta to the theoretical velocity. -

B area of jet at vena contracta to the area of orificeC actual discharge through an orifice to the theoretical discharge D none of the above

Answer : D

Question The ratio of actual discharge of a jet of water to its theoretical discharge is known as _

A co-efficient of viscosityB co-efficient of velocityC co-efficient of contraction D co-efficient of discharge

Answer : C

Question The theoretical velocity of jet at venacontracta is---

A 2g HB H√2gC √2gHD 2g √H

Answer : A

Question The coefficient of velocity for an orifice is experimentally measured as by (using usual notations),

A x/(2 √YH)B 2x/(√YH)C x/(√4YH)D √ x2/8YH)

Answer : B

Question: The discharge through a wholly drowned orifice is given as ---- (Where,H1= Height of water (on the upstream side) above the top of the orifice

H2= Height of the water (on the

downstream side) above the bottom of the orifice and H = Difference between two water levels on either side of the on either side of the orifice )

A Q = Cd. b H1 √2gH B Q = Cd. b (H2-H1)√2g H C Q = Cd. b H2 √2gH D Q = Cd. b H√2gH

Answer : A

Question:A circular orifice of 50 mm in diameter discharges water under an effective head of 4 m. If discharge through orifice is 10.65 litre/s, the coefficient of discharge will be ,

A 0.612B 0.512C 0.592D 0.662

Answer : A

Question:Two small circular orifices of diameters d1and d2respectively are placed on one side of a tank at depths of 50 cm and 1m below a constant surface of water. If the discharges through the orifices are the same, then the ratio of the

diameter d1&d2will be,

A 1.189 : 1B 1.891 : 1C 4.22:1D 1: √2

Answer : C

Question:A centre of an orifice is situated 15 cm above the datum of vessel containing water depth 75 cm. If the coefficient of velocity is 0.975 and horizontal co-ordinate measured from vena contracta is 60 cm, the vertical co- ordinate will be

A 25cm B 5 cmC 15 cmD 29.56 Cm

Answer : D

Question:A horizontal venturimeter 30 cm x 20 cm is used to measure the flow of an oil of Relative density 0.9. If the difference in pressure head between inlet and outlet is 4 m. and

manometric liquid is mercury, the manometer reading will be

A 1.283 mB 0.280 mC 2.283 mD 0.283 mE None of the above

Answer : A

Question:A pipe carrying water has 30 cm x 15 cm venturimeter which is positioned at 30oto the horizontal. The flow is upwards. The converging cone is 45 cm in length and the value of Cdis 0.98. A differential U- tube manometer with mercury as indicating fluid is connected to the inlet and throat shows a column height of 30 cm. Find the head loss in the converging cone of the venturimeter.

A 15 cmB 100 cmC 20 cmD 10 cm

Answer : D

Question:If the velocity of flow is 4 m/s, then the velocity head should be…..

A 0.46 mB 1 mC 1.50 mD 0.815 m

Answer : C

Question:A rectangular orifice 300mm deep and 600 mm wide is discharging water at a constant

head of 500 mm. if Cd for orifice is 0.62, the discharge through the orifice is –

A 0.1 m3/sB 0.4 m3/sC 0.349 m3/sD 0.324 m3/s

Answer : C

Question:A centre of an orifice is situated 15 cm above the datum of vessel containing water depth 75 cm. If the coefficient of velocity is 0.975 and horizontal co-ordinate measured from vena

contracta is 60 cm,the verytical co- ordinate will be

A 25cm B 5 cmC 15 cmD 29.56 Cm

Answer : A

Question:A sharp edge orifice of diameter 5 cm discharge water under a constant head of 5 m. If the coefficient of discharge is 0.62, the actual discharge through orifice in liter/see is _

A 12.05B 6.05C 17.20D 11.99

Answer : B

Question: The study of motion of fluid with forces which causes the flow is known as

A fluid kinematicsB fluid dynamicsC fluid staticsD none of the above

Answer : B

Question: The study of motion of fluid with forces which causes the flow is known as

A fluid kinematicsB fluid dynamicsC fluid staticsD none of the above

Answer : A

Question For venturimeter the angle of diverging cone is

A 6 0

B 200

C 100

D none of the above

Answer : B

Question For venturimeter the length of the throat is ………. it’s diameter.

A half B equalC twiceD one-third

Answer : A

Question For horizontal venturimeter the term ((P1 – P2)/ γ ) is called as

A venturi head B pressure headC velocity headD piezometric head

Answer : B

Question The flow in a venturimeter takes place from

A throat to divergent cone B convergent cone to divergent cone C divergent cone to convergent coneD none of the above

Answer : D

Question A flat circular plate with circular hole is known as ………….

A nozzle B throatC venacontractaD orifice

Answer : C

Question The centre hole of orifice plate is bevelled with the angle of ……

A 400to 500

B 300to 500

C 300to 450

D 400to 600

Answer : C

Question The diameter of orifice is ……. the diameter of pipe.

A twiceB same C halfD none of the above