geas 1.pptx
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8/17/2019 GEAS 1.pptx
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FINAL COACHINGQUESTIONS
ENGINEERING REVIEWERS OF ASIA(ERA)
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General Engineering &Applied Science
It explains combustion as aresult of loss of a substance.
Engineering Re!ie"er
#$ Aia
%#gi'#n
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General Engineering &Applied Science
The man behind tabulation ofelement.
Engineering Re!ie"er
#$ Aia
endelee!
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General Engineering &Applied Science
He rst framework for naming
symbols using circles and dots like Ofor oxygen and O with doth in themiddle for hydrogen.
Engineering Re!ie"er
#$ Aia
#n *al'#n
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General Engineering &Applied Science
A solution contains 33. grams of
sucrose !"#H##O""$ dissol%ed in #&grams of water. 'etermine the molalconcentration( )!"#H##O"" * 3+# g,mol-
Engineering Re!ie"er
#$ Aia
+,-./0
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General Engineering &Applied Science
How many grams of potassium
chlorate must be decomposed toyield #./ grams of oxygen( )0!lO3*
"##.1 g,mole-
Engineering Re!ie"er
#$ Aia
/-1,2 gra0
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General Engineering &Applied Science
The %olume of a denite 2uantity of
dry gas is in%ersely proportional tothe pressure pro%ided thetemperature remains constant.
Engineering Re!ie"er
#$ Aia
3#4le5 La"
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General Engineering &Applied Science
It refers to matter that do not ha%e
denite form or structure.
Engineering Re!ie"er
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A0#rp#6
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General Engineering &Applied Science
Three grams of sulphur dissol%ed in #&& g of
naphthalene !"&H$ was found decreasing thefree4ing point of the sol%ent to &./# 5!. 6indthe molecular weight of the solute. )0 f !"&H *
1. 5!,molar-
Engineering Re!ie"er
#$ Aia
7-8,17 g90#le
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General Engineering &Applied Science
7ubstance ha%ing a pH le%el less than
/.
Engineering Re!ie"er
#$ Aia
:ae
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General Engineering &Applied Science
It is the enthalpy change associated
with the condensation of gaseouspositi%e and negati%e ion into a crystal.
Engineering Re!ie"er
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La''ice Energ4
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General Engineering &Applied Science
The chemical name for 0 #H8O+ is
99999.
Engineering Re!ie"er
#$ Aia
p#'ai60
4dr#genp#pa'e
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General Engineering &Applied Science
It is the cheapest of the soluble salts of
aluminum and is prepared by theaction of sulfuric acid on clay orbauxite.
Engineering Re!ie"er
#$ Aia
Al60in60 6l$a'e
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General Engineering &Applied Science
It is a product of the weathering of
complex silicates$ particularly offeldspars which are abundant minerals.
Engineering Re!ie"er
#$ Aia
cla4
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General Engineering &Applied Science
These are isomers resulting from
di:erences in special orientation ofligand groups.
Engineering Re!ie"er
#$ Aia
'er#i#0er
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General Engineering &Applied Science
;lectrons occupy all the orbitals of a
gi%en subshell singly before pairingbegins. These unpaired electrons ha%eparallel spins. This is known as<
Engineering Re!ie"er
#$ Aia
H6nd5 r6le
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General Engineering &Applied Science
It is a tube lled with a concentrated
solution of a salt which conducts currentbetween the half cells but pre%ents themixing of the solutions of the half cells.
Engineering Re!ie"er
#$ Aia
al' :ridge
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General Engineering &Applied Science
This law states that at constant
temperature the %olume of asample of gas %aries in%ersely withthe pressure.
Engineering Re!ie"er
#$ Aia
3#4le5 La"
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General Engineering &Applied Science
;lectron a=nity is the amount of
energy absorbed when an electronis added to an isolated gaseousatom to form an ion with a ">
charge. The general trend across aperiod and down a family is 99999.
Engineering Re!ie"er
#$ Aia
n#' reg6lar pa''ern
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General Engineering &Applied Science
It is the scattering of light by
colloidal particles
Engineering Re!ie"er
#$ Aia
T4ndall E;ec'
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General Engineering &Applied Science
!onsider H3AsO3$ Arsenic acid
)H*".&"$As*/+.$O*"1.&-.Howmany mole is "kg of H3AsO3(
Engineering Re!ie"er
#$ Aia
2,.< 0#le
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General Engineering &Applied Science
!on%ert #. liters to 2uart4.
Engineering Re!ie"er
#$ Aia
/,1</8 =6ar'>
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General Engineering &Applied Science
It is customary to indicate
accuracy by using a certainnumbers of gures or digits.
Engineering Re!ie"er
#$ Aia
igni?can' ?g6re
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General Engineering &Applied Science
It is a %eried hypothesis.
Engineering Re!ie"er
#$ Aia
'e#r4
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General Engineering &Applied Science
It is re2uired for organic
compounds.
Engineering Re!ie"er
#$ Aia
car:#n
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General Engineering &Applied Science
" Angstrom is e2ual to<
Engineering Re!ie"er
#$ Aia
7+@ c0
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General Engineering &Applied Science
Term used to denote the technology of
treating a mined ore to obtain a producthigher on concentration of a wanted mineralfrom the unwanted rock mass in which itoccurs.
Engineering Re!ie"er
#$ Aia
#re dreing
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General Engineering &Applied Science
It states that$ ?If a stress is placed on a
system on e2uilibrium whereby thee2uilibrium is altered$ that change willtake place which tends to relie%e orneutrali4e the e:ect of the addedstress?.
Engineering Re!ie"er
#$ Aia
Le Ca'elierB %rinciple
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General Engineering &Applied Science
The energy possessed by a
substance that allows it to bechanged into a new substance.
Engineering Re!ie"er
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Ce0ical energ4
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General Engineering &Applied Science
If heat is absorbed by the
system during a chemicalchange$ it is called as<
Engineering Re!ie"er
#$ Aia
end#'er0ic
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General Engineering &Applied Science
@ho determined the 2uantitati%e
relationship between the amount ofelectricity used in electrolysis andthe amount of chemical reaction
that occurs(
Engineering Re!ie"er
#$ Aia
icael Farada4
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General Engineering &Applied Science
It is considered as deri%ati%es of
ammonia in which one or more of thehydrogens ha%e been replaced by thealkyl or aryl group. It is characteri4ed
by unpleasant odors.
Engineering Re!ie"er
#$ Aia
A0ine
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General Engineering &Applied Science
ame the gi%en binary compound<
!s6.
Engineering Re!ie"er
#$ Aia
Cei60 Fl#6ride
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General Engineering &Applied Science
!alculate the molar concentration
of a solution that contains "g ofpotassium hydroxide in ##ml ofsolution.
Engineering Re!ie"er
#$ Aia
7,/
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General Engineering &Applied Science
@hat is the electronic
conguration for magnesium(
Engineering Re!ie"er
#$ Aia
NeD-/
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General Engineering &Applied Science
@hat is the %olume of " moles of a
gas at # atm and #/3 0(
Engineering Re!ie"er
#$ Aia
77,/L
l i i
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General Engineering &Applied Science
It is a borosilicate glass with a %ery
low coe=cient of thermalexpansion$ hence$ itBs wide forcooking and ser%ing utensils.
Engineering Re!ie"er
#$ Aia
%4re
G l i i &
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General Engineering &Applied Science
!alculate the pH and the pOH of
each of a ".&& M HO3.
Engineering Re!ie"er
#$ Aia
pH +,++ pOH 7<,++
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G l E i i &
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General Engineering &Applied Science
@hat is the Cowry>Dronsted acid in
H!l dissol%ed in water(
Engineering Re!ie"er
#$ Aia
H-O
G l E i i &
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General Engineering &Applied Science
It is a colorless solid capable of
being cut into brilliant crystals isthe hardest$ must abrasi%e mineralknown.
Engineering Re!ie"er
#$ Aia
*ia0#nd
G l E i i &
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General Engineering &Applied Science
It is the calculation of both energy
balances and material balances ina chemical system.
Engineering Re!ie"er
#$ Aia
S'#ici#0e'r4
G l E i i &
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General Engineering &Applied Science
Ei%e the names of the following
co%alent compounds.8!l3 $ !l#O/
Engineering Re!ie"er
#$ Aia
%#'ai60 Tricl#ride *iCl#rine Hep'a#ide
G l E i i &
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General Engineering &Applied Science
ame the gi%en compound$ 8!I.
Engineering Re!ie"er
#$ Aia
%#p#r6 %en'acl#ride
G l E i i &
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General Engineering &Applied Science
99999 in%ol%es the replacement of
one of the atoms or groups ofatoms attached to the carbonFDackboneG of the organic
molecule.
Engineering Re!ie"er
#$ Aia
S6:'i'6'i#n Reac'i#n
G l E i i &
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General Engineering &Applied Science
!alculate the %olume )in Citres-
occupied by /.+&g of H3 at 7T8)7tandard Temperature$ and8ressure-
Engineering Re!ie"er
#$ Aia
.,2-L
G l E i i &
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General Engineering &Applied Science
It is the ;nergy change
accompanying a mole of electronsbeing added to a mole of agaseous atoms or ions.
Engineering Re!ie"er
#$ Aia
Elec'r#nic AJni'4
G l E i i &
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General Engineering &Applied Science
A silicon chip used in an integrated
circuit of a microcomputer has amass of .1mg. How many silicon)7i- atoms are present in this chip(
Engineering Re!ie"er
#$ Aia
7,//7+/+a'#0
G l E i i &
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General Engineering &Applied Science
@hat is the %olume of " mole of a
gas at " atm and +10(
Engineering Re!ie"er
#$ Aia
<<,L
General Engineering &
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General Engineering &Applied Science
This Caw states that if a process
can be written as the sum ofse%eral stepwise processes$ the;nthalphy change the total process
e2uals the sum of the ;nthalphychanges of the arious 7teps.
Engineering Re!ie"er
#$ Aia
He La"
General Engineering &
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General Engineering &Applied Science
How much heat will be released
when 1.&g of ;thyl Alcohol$ Heatof apori4ation of ,g$ changesfrom the gas phase to a li2uid at
its boiling(
Engineering Re!ie"er
#$ Aia
881++
General Engineering &
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General Engineering &Applied Science
7ulfur HexaJouride )761- is a colorless$
odourless and %ery unreacti%e gas.!alculate the pressure )in atm- exertedby ".# moles of the gas in a steel
%essel of %olume .+#C at +K!.
Engineering Re!ie"er
#$ Aia
,28 a'0
General Engineering &
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General Engineering &Applied Science
!alculate the L by mass of
hydrogen and of oxygen in thecompound water
Engineering Re!ie"er
#$ Aia
K H4dr#gen :4 0a in
77,/K K #4gen :4 0a in ,K
General Engineering &
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General Engineering &Applied Science
This process separates the
components of a mixture on thebasis of di:erences in particle si4e.It is used most often to separate a
li2uid from a solid.
Engineering Re!ie"er
#$ Aia
Fil'ra'i#n
General Engineering &
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General Engineering &Applied Science
'etermine the chemical reaction
of the following historicalclassication<
@M N P Q @P N M
Engineering Re!ie"er
#$ Aia
*#6:le *iplace0en' #re'a'ei
General Engineering &
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General Engineering &Applied Science
7ulfur HexaJuoride )761- is a
colorless$ odorless$ %ery unreacti%egas. !alculate the pressure )in atm-exerted by ".# moles of gas in a
steel %essel of %olume .+3C at+R!.
Engineering Re!ie"er
#$ Aia
,28 a'0
General Engineering &
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General Engineering &Applied Science
It is dened as the pressure
exerted by a force of one newtonacting on an area of one s2uaremeter.
Engineering Re!ie"er
#$ Aia
%acal
General Engineering &
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General Engineering &Applied Science
Eold is a precious metal that is
chemically unreacti%e. It is used mainly in Sewerly$ dentistry and electronic de%ices.A piece of gold ingot with a mass of 3&"grams has a %olume of ".13cm3.!alculate the density of gold.
Engineering Re!ie"er
#$ Aia
7.,- g9c0-
General Engineering &
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General Engineering &Applied Science
A bottle of certain ceramic tile
cleanser$ which essentially a solutionof hydrogen chloride$ contains "3&g ofH!l and /&g of water. @hat is the
percent by mass of H!l in thiscleanser(
Engineering Re!ie"er
#$ Aia
7<,K
General Engineering &
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General Engineering &Applied Science
A co%alent bond between two atoms
with di:erent electronegati%ities$ sothat the electron density isunsymmetrically distributed.
Engineering Re!ie"er
#$ Aia
%#lar :#nd
General Engineering &
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General Engineering &Applied Science
@hich element has the highest
ioni4ation potential of its atom(
Engineering Re!ie"er
#$ Aia
Heli60
General Engineering &
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General Engineering &Applied Science
The acid secreted by the cells of the
stomach lining is a hydrochloric acidsolution that typically contains&.&&//+ mol of H!l per &.&&&C of
solution. @hat is the concentration ofthis acid.
Engineering Re!ie"er
#$ Aia
+,788 0#l9L
General Engineering &
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General Engineering &Applied Science
!on%ert #.3m to cm
Engineering Re!ie"er
#$ Aia
/-+ c0
General Engineering &
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General Engineering &Applied Science
It is the minimum amount of
radioacti%e material needed tosustain a nuclear chainreaction.
Engineering Re!ie"er
#$ Aia
cri'ical 0a
General Engineering &
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General Engineering &Applied Science
!alifornium>#+1 is formed by
bombardment of ranium>#3atoms. If four neutrons are alsoformed$ what particle is used for
the bombardment(
Engineering Re!ie"er
#$ Aia
7/1C
General Engineering &
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General Engineering &Applied Science
99999states that a constant
pressure and temperature$ the%olume of a gas is directlyproportional to the number of
moles present.
Engineering Re!ie"er
#$ Aia
A!#gadr#5 La"
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General Engineering &
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General Engineering &Applied Science
How many 4eroes in the
measurement &.&&&#&&+& aresignicant(
Engineering Re!ie"er
#$ Aia
'ree
General Engineering &
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General Engineering &Applied Science
@hich of the following describes a
chemical change(
Engineering Re!ie"er
#$ Aia
Tarniing il!er
General Engineering &
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General Engineering &Applied Science
A laboratory experiment was performedto determine the percent by mass ofwater in a hydrate. The accepted %alue is31.&L water whose obser%ed %alue hasan error of .&&L. 6ind the percent by
mass of water.
Engineering Re!ie"er
#$ Aia
-2,K "a'er
General Engineering &
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General Engineering &Applied Science
@hich of the following phase changes
represent sublimation(
Engineering Re!ie"er
#$ Aia
S#lid ga
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General Engineering &
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General Engineering &Applied Science
@hich of the following is a binary
compound(
Engineering Re!ie"er
#$ Aia
H4dr#cl#ric acid
General Engineering &
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General Engineering &Applied Science
An example of a ternary compound is
99999.
Engineering Re!ie"er
#$ Aia
%#'ai60 cl#ra'e
General Engineering &
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General Engineering &Applied Science
@hat is the charge of a hydrogen
atom(
Engineering Re!ie"er
#$ Aia
+
General Engineering &
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General Engineering &Applied Science
eutrons were disco%ered by
Engineering Re!ie"er
#$ Aia
a0e Cad"ic
General Engineering &
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General Engineering &Applied Science
@ho de%eloped the atomic theory(
Engineering Re!ie"er
#$ Aia
#ep %r#6'
General Engineering &
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General Engineering &Applied Science
The impossibility of knowing both the
precise location and %elocity ofsubatomic particle at the same time isknown as the 99999.
Engineering Re!ie"er
#$ Aia
Uncer'ain'4 principle
General Engineering &
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General Engineering &Applied Science
An atom which has the greatest ability
to attract electron is
Engineering Re!ie"er
#$ Aia
O4gen
General Engineering &
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General Engineering &Applied Science
If the %olume of the mole of gas
molecules remains constant$ loweringthe temperature will make thepressure
Engineering Re!ie"er
#$ Aia
Increae
General Engineering &
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General Engineering &Applied Science
@hene%er you ha%e e2ual %olumes of
gases at the same temperature andpressure$ the %olume must.
Engineering Re!ie"er
#$ Aia
C#n'ain e=6al n60:er #$par'icle
General Engineering &
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General Engineering &Applied Science
@hat pressure must be applied to
##mC of gas at "atm to reduce its%olume to "&&mC(
Engineering Re!ie"er
#$ Aia
/,/8a'0
General Engineering &
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General Engineering &Applied Science
How many moles of are present in
++.C of at 7T8(
Engineering Re!ie"er
#$ Aia
/,+ 0#le
General Engineering &
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Ge e a g ee g &Applied Science
A hole is to be punched out of plate ha%inga shearing strength of +& ksi. Thecompressi%e stress in the punch is limitedto & ksi. !ompute the maximum thicknessof plate from which a hole #. inches in
diameter can be punched.
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+,27 in
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A hole is to be punched out of plate ha%inga shearing strength of +& ksi. Thecompressi%e stress in the punch is limitedto & ksi. If the plate is &.# inches thick$determine the diameter of the smallest
hole that can be punched.
Engineering Re!ie"er
#$ Aia
0.800 in
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At what angular %elocity will the stress
in a rotating steel ring e2ual to "&U8a if its mean radius is ##& mm( Thedensity of the steel is /. Ug,mV3.
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#$ Aia
1/ rad9
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A pipe carry steam at 3. U8a has an outsidediameter of +& mm and a wall thickness of
"& mm. A gasket is inserted between theJange at one end of the pipe and a Jat plateuse to cap the end. How many +&>mm>diameter bolts must be used to hold the cap
on if the allowable stress in the bolts is &U8a$ of which U8a is the initial stress(
Engineering Re!ie"er
#$ Aia
72
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A pipe carry steam at 3. U8a has an outsidediameter of +& mm and a wall thickness of
"& mm. A gasket is inserted between theJange at one end of the pipe and a Jat plateuse to cap the end. @hat circumferentialstress is de%eloped in the pipe(
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#$ Aia
28,- %a
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It is the maximum safe stress
that a material can carry
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working stress
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It is the point at which there is
an appreciable elongation ofthe material without anycorresponding increase of load.
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#$ Aia
ield p#in'
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This component measures the
pulling )or pushing- actionperpendicular to the section.
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#$ Aia
Aial $#rce
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@hat is the theoretical
maximum %alue of 8oissonKsratio of any gi%en materialsubSected to a uniform triaxial
stress.
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#$ Aia
79/
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A steel bar & mm in diameter and # m
long is surrounded by a shell of castiron mm thick. !ompute the loadthat will compress the combined bar atotal of &. mm in the length of #m.
6or steel ; * #&& E8a$ and for cast iron; * "&& E8a
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192 kN
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A solid steel shaft m long is stressedto & U8a when twisted through +degrees. sing E * 3 E8a$ computethe shaft diameter.
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7- 00
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'etermine the maximum shearingstress in a helical steel springcomposed of #& turns of #& mm>diamter wire on a mean radius of &mm when tha spring is supporting a
load of # k. se E * 3 E8a.
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#$ Aia
7/+,1 %a
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'etermine the elongation in a helicalsteel spring composed of #& turns of#& mm>diamter wire on a mean radiusof & mm when tha spring issupporting a load of # k. se E * 3
E8a.
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#$ Aia
.,2 00
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These are components of the
total resistance to sliding theportion to one side of theexploratory section past the
other.
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#$ Aia
Sear $#rce
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@ho rst postulated that stress
is proportional to strain in"1/(
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#$ Aia
R#:er' H##e
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6irst material known to be used
by man.
R#c