calicut university civil engineering fourth semester model question papers

MODEL QUESTION PAPERFOURTH SEMESTER B.TECH EXAMINATION

CE 09 404 Structural Analysis ITime: 3Hours Marks: 70

Part AAnswer all questions

1


CE09 403: FLUID MECHANICS

Time: 3 Hours Maximum: 70 MarksPART A

All questions are compulsory

1. a. Differentiate between Newtonian and Non-newtonian Fluidb. What is a piezometer and what are its uses?c. State Bernoulli’s theorem?d. Explain the terms hydraulic gradient and total energy line?e. What are the factors affecting boundary layer thickness?

5 x 2 marks =10marks

PART BAnswer any four questions

2. a. Explain micro manometer and differential manometer?b. Define total pressure and resultant pressure. Derive an equation for the depth of

centre of pressure on an inclined surface submerged in a fluid.c. Distinguish between

i. Laminar flow and turbulent flowii. Steady flow and Unsteady flowiii Rotational flow and irrotational flow

d. Enumerate various losses of head that occur in a pipeline. Derive an expression for losses of head due to sudden enlargement?

e. State and explain Buckingham pie theorem?f. Derive the Euler’s equation for motion along a stream line and hence obtain the

Bernoulli’s equation? 4x5 marks = 20 marks

PART C

3 a.. 20 litres of oil of sp.gravity 0.75 is mixed with 30litres of sp.gravity 1.02 on mixing it was found that the bulk of the liquid shrinked 2 percent. Calculate the sp.gravity, density, volume and the total weight of the mixture.

Or

4

University of Calicut

b. A tank is one metre square and 2 metre deep. It is filled half with a liquid of sp.gravity 2 and the remaining half is filled with another liquid of sp.gravity 1.5. Find the magnitude and the line of action of the resultant force exerted upon the side of tank.

4. a. A pitot tube is used to measure the velocity of an airplane. If a U tube differential manometer connected to the Pitot tube registers a pressure difference of 90 mm of water. Find the speed of the plane taking the coefficient of the tube as 0.98. The specific weight of the air is 12.225 N/m3.

Or

b. A spillway model is to be built to a scale 1:30 with a velocity and discharge in the model as 0.6m/s and 0.15 m3/s respectively. What will be the velocity and discharge in the prototype?

5. a. A pipe 10cm in diameter and 400m has a nozzle fixed at the discharge end. The nozzle discharges at atmospheric pressure. If the pipe is horizontal and the head at the pipe inlet is 45m. Determine the maximum power that can be transmitted. What would be the corresponding size of nozzle. Friction factor =0.02.

Or

b. A horizontal water main 2000m of 20cm diameter is followed by 1000m of 15cm diameter pipe . Find the total pressure drop along the main, if the discharge through is 30 l/s. Ignore minor losses and assume f = 0.008.

6. a. A model was tested in a towing tank to determine the wave resistance of a ship. The motion of the ship in the ocean has 40m/s. The model scale is 1:100. Estimate the testing speed of model. Calculate also the resistance experienced by the ship if the model experiences 2.5 N at the testing speed. Sp.gravity of sea water 1.025.

Orb. Model studies of a sea wall are conducted at a scale of 1 in 20. If the force per

metre on the model wall measured is 500 N, calculate to what force it corresponds to in the prototype.

4 x 10 marks = 40 marks

Syllabus - B.Tech Civil Engg. 10



CE 09 406 SURVEYING II

Time: Three Hours Maximum Marks: 70

Part AAnswer all questions

I (a) What is an analectic lens? Where is it used? (b) What is meant by satellite station? (c) What are the different cases in the determination of Most probable values? (d) Define Altitude and Declination :- (e) What is tilt distortion? [5 x 2 = 10marks]

Part BAnswer any four questions

II 1. Derive the basic expression for the stadia tacheometry, fixed hair method. 2. Find the most probable value of the angle A from the following observation equations

A = 300 28’ 40’’3A = 910 25’ 55’’4A = 1210 54’ 30’’

3 A star having a declination of 560 10’ N has its upper transit in the zenith of the place. Find the altitude of the star at its lower transit. 4. A vertical photograph was taken at an altitude of 1200 m above mean sea level.

Determine the scale of the photograph for terrain lying at elevations of 80 m and 300 m if the focal length of the camera is 15 cm.

5. Explain Napier’s rules and when it can be used in solving astronomical triangle? 6. What are the different methods of locating soundings? [4 x 5 = 20 marks]

Part CIII (a) A, B and C are the three visible stations in a hydrographical survey. The computed sides of the triangle ABC are AB = 1130 m; BC = 1372 m and CA = 1889 m. Outside this triangle nearer to AC a station P is established and its position is to be found by three point resection on A,B and C ; the angles APB and BPC being 420 35’ and 540 20’ respectively. Determine the distances PA and PC. [10 marks]

OR

(b) An observation with a percentage theodolite gave staff readings of 1.052 and 2.502 for angles of elevation of 5% and 6% respectively. On sighting the graduation corresponding to the height of the instrument axis above the ground, the vertical angle was 5.25%. Compute the horizontal distance and the elevation of the staff station if the instrument station has an elevation of 942.552 m. [10 marks]

IV (a) How do you determine the intervisibility of triangulation stations?Two triangulation stations A and B are 40 km apart and have elevations of 178 m and175 m respectively. Find the minimum height of signal required at B so that the line of sight may not pass nearer the ground than 3 m. The intervening ground may be assumed to have a uniform elevation of 150 m. [3+7 = 10 marks]

OR

(b) The following angles were measured at a station O so as to close the horizon:



AOB = 83o 42’ 28.75’’ weight 3BOC = 102o 15’ 43.26’’ weight 2COD = 94 o 38’ 27.22’’ weight 4DOA = 79 o 23’ 23.77’’ weight 2. Adjust the angles. [10 marks]

V (a) What are the different co-ordinate systems used in field astronomy? Explain each with neat sketches. [10 marks]

OR

(b) Given the Greenwich civil time as 6h 40m 12s P.M. on July 2, 1965. Find the L.M.T at the places having the longitudes

i) 720 30’ E ii) 720 30’ W iii) 1100 32’ 30’’E [10 marks]

VI (a) Two objects A and B whose elevations are 500 m and 1500 m respectively above mean sea level are photographed from certain height with the axis of the camera vertical.The coordinates expressed in mm of the corresponding photo- images a & b arex co ordinate y co-ordinate +200 +150 -320 -300 The focal length = 200 mm and length AB= 44227 m. Find the height of the camera station. [10 marks]

OR

(b) Explain how horizontal and vertical angles are determined from terrestrial photograph:-What is Aerial photogrammetry? Expalin the components of an aerial camera:-

[5+ 5 = 10marks]


CE09 408(P) CIVIL ENGINEERING DRAWING I

Time: 3 hrs. Max.: 50 marks

Notes:Answer any two questions from Part A.Question No. 4 in Part BI is compulsoryAssume any missing but relevant data appropriatelyTake suitable scales for the drawingsAll drawings must be neat and clear

Part A1) Draw to a suitable scale, elevation of a Steel Roof Truss, adopted for a span of 12 m. Also show the important joint details. Use suitable ISA sections. (10 marks)

2) Draw the front elevation and cross sectional view of a two leaf panelled door 1.2m x 2.1m height in an opening in a 300mm thick brick wall. Each leaf is divided into three equal panels. Show the details of the important joints. (10 marks)

3) Sketch the arrangement of a Dog-Legged Stair of a residential building. The total space available is 5m x 3m. The height of the roof is 3m. (10 marks)

Part B



1. Draw to a suitable scale, plan, section and front elevation of the line sketch shown in figure. The specifications are as follows:

Foundation and basement : R.R. masonry in CM 1:6. The depth of foundation is 1200mm below the ground level and includes 150mm thick P.C.C. course. The width of foundation is 1000mm at the footing level. The basement has a width of 450mm and height of 500mm above the ground level.Superstructure : 300mm thick brick walls in CM 1:6. Height of the room from floor level is 3.3m.Roofing : R.C.C 1:2:4 of 120mm thick. Edges projected at 100mm. Provide sunshades, lintelsnecessary.Flooring : 150mm thick P.C.C. of 1:4:8 finished with ceramic tiles over 10mm thick CM 1:3.Doors & Windows :D 1.00m x 2.10mD2 0.80m x 2.10mW 1.00m x 1.20mV 0.60m x 0.60m (30 marks)


calicut university civil engineering fourth semester model question papers

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