CROMPTON GREAVES INTERVIEW QUESTIONS
SECTION I : TECHNICAL 50 QUESTIONS 30 MINS
1)
Magnetic compass indicates
a) true north pole b) ionic earth pole c)geographic north pole
d)magnetic north pole.
2)
For a cantilever beam with uniformly varying load, shape of bending
moment curve is
a)parabolic
b) hyperbolic c) straight line d) cubic.
3)
For perfectly elastic bodies, coefficient of restitution is a) 0 b)
0.5 c) 1 d) infinity.
4)
For 1st
order lever, mechanical advantage is a)<1 b)>1 c) =1 d)none.
5)
18:4:1 in H.S.S represent a) 18tu : 4vn : 1 cr. Other choices r just
interchanged.
6)
Due to intense braking of an automobile reaction of wheels on road
- Will be equally distributed to all 4 wheels.
- Will be more at rear wheels
- Inertia will be on the front wheels.
- Not remember.
if
u apply brakes on the wheels of a bicycle then
a.
normal reaction on the wheel increases
b.
normal reaction on the wheel decreases
c.
normal reaction remains same as there is no radial component of
frictional force
7)
thermal efficiency of I.C engines will be a)20-25% b)30-35% c)60-75%
d) 45- 55%.
8)
when a mass is supported by spring of spring constant k, which is cut
in 4 equal pieces and the connected in parallel way the equivalent
spring constant is a)k/4 b) 16k c) 64k d) k.
9)
when a mass is supported on roof of a elevator and elevator moves
with an acceleration of 4.9 m/s2 shows a spring reading of 15kg, then
the weight of the body is a) 10 b) 15 c) 30 d)20.
10.Mass
production of bolts and rivets is by a .hot extrusion b .forging
c .cold heading d .cold peening
11.why
doesn't mercury stick to glass tube
a
.cohesive force>adhesive force b .cohesive force<adhesive
force
c
.cohesive force= adhesive force d .none of the above
12.How
r bolts and nuts manufactured? a.head stamping b .cold extrusion
c .cold peening d .forging
13.Eulers
formula is used for column of length a. >80 b. <80 c.
>90 d. >110
14.If
a body weighing 40kg floats in water with 40% of volume immersed, the
sp.gravity of the body is
- 1 b. 0.16 c. 0.25 d.
15.Axial
claw clutches a.Disengages b. engages c. engages only with load
d. operates only with load
16.If
center distance of a involute mating gear changes then the pressure
angle
- Increases b. decreases c. remains unaltered
17.Normalizing
is
- heated above critical temp and cooled in air .
b.
heated above critical temp and quenched in oil
c.
heated below critical temp and cooled in air
18.The
best suited material for permanent magnet a. Alnico b. silicon
19.Hooke
joint is used for
a.
parallel and intersecting shafts b. non parallel non intersecting
c.
nonparallel and intersecting d. parallel and non intersecting
20.To
have a const. velocity ratio the two gears should have (or) angular
velocity of the gear will remain the same if the .......... cuts the
line joining ........ at a fixed point ans law of gearing (check for
ans)
21.Which
of the following is a loose running fit a. h6f6 b.h6e6 c. h6d6
22.Fahrenheit
and centigrade are equal at a.-40 b.0 c. 32 d.100
23.
M10 hexagonal bolt is manufactured a. upset forging and thread
rolling b. casting and thread rolling
24.specific
speed in a turbo machine depends on a.geometric shape, b.size,
c.head, d.all the above.
25.unit
of surface roughness is a.micron, b.PPM, c.mm2
,d.meter
26.mohr’s
circle is used to find a.principle stress, b.resultant of…. ANS:c
(check for ans)
27.storage,transportation,
operation,delay,inspection symbols are used in
a.process
chart, b.mam m/c chart, c.grant chart, d.all the above.
28.melting
point of ice changes with
a.increase
with pressure, b.increase with pressure ratio.
29.If
the speed of fan is doubled,quantity of air displaced is
a.doubled,
b.4times, c.1/2 times d.remains same.
30.
which has less carbon content
a.tool
steel,b.spring steel,carburising steel,forging steel.
31.when
a helical compressive spring is subjected to axial compression
load,the stress induced in the spring will be
a.
tensile, b. compressive, c. shear. d. none
32.for
a bar element if area, length, and stress are doubled the elastic
strain energy will be
- Half b. doubled c. 4 times d. 8 times
33
for a punching die , 2mm thick sheet, dia. D ,force f, the shear
force is
ans:
8800 (check for ans)
34.
spheroidising is a process of
- annealing b. normalizing c. tempering d. case hardening
35
what type of thread is used in lead screw of a lathe
a.
acme thread b. V c. square d. buttress
36.
Wear allowance of a go nogo end plug gauge is given for
a..
go end b. nogo end
37.
Internal spur gears can be made by using
a.
gear shaping b. slotting c. gear hobbing
38.
Height of the capillary varies with
- increase with increase in dia of tube c. increase with increase in sp. weight
- increase with decrease in dia d. increase with decrease in sp. weight
39)
a bolt of nominal diameter 33mm the stress of 100N/mm2 the safe load
is
a)60KN
b)100 kn c) 160kn.
40)
a cylinder with in 1% of the tolerance capacity limit, the
permissible tolerance in height and radius are
ans
is 0.2% radius and 0.25 height. (check for ans)
41)
in ball bearings cage is used for
- to maintain the ball position b) to maintain parallelism between inner and outer race.
42)
Pumped storage plants are used mainly for
- high head b) run off river.
43)
For an incompressible solid , Poisson ratio is
44)
distance of ozone layer from surface of earth
a.
0 to 100 km b 20 to 50 km c. 50 to 100 km d. 10 to 15 km
45)
An elevator is moving up with an acc. of 4.9 m/sec2 a body weighing
15 kg is attached with spring balance. what is the value in the
spring balance a. 10 b. 15 c. 20 d. 30
46)
at same heat input and max pressure
a.
efficiency of otto cycle more than diesel
b.
efficiency of dual cycle more than diesel
c.
efficiency of diesel cycle more than otto
d.
..............................related
47
bending stress is ( y is the distance from the neutral axis)
a.
inversely proportional to y
b.
proportional to y
c.
independent of y
d.
.........
48)
if the body is 40% immersed in water what will be its specific
gravity
49)
the temp at the three edges of a square shaped body is 0 C and on the
fourth edge is 100 c find the
temp
at the center of the square a. 25 b. 100 c. 50 d. 0
50)True
or false
i)Plaster
of parries is mad from dolomite, bauxite, and limestone.
ii)Highest
temperature is represented by red color.
iii)In
ball bearing grease lubrication acts as boundary layer lubrication.
SECTION II : APTITUDE 50 QUESTIONS 30 MINS
Complete
the series: 462 , 420 , 380 , ( ) , 306 ans.342 ..
Complete
the series: 1,4,9,16, 25 , ( ) ans 36
Pick
odd one out: geometry , algebra , arithmetic , mathematics
Analogy
- moon : satellite :: earth: ? ans:planet
SAMPLE INTERVIEW QUESTIONS
COMPONENTS OF A MOTOR TRANSFORMER -TYPES
DESIGN OF MOTOR
POKA YOKE,KANBAN
5 P`S IN MARKETING,(PRICE,PLACE)
WHAT IS TURBO CHARGER?
DESIGN OF SILENCER AND IT`S PURPOSE
REINFORCED CONCRETE BEAM (RCC BEAM)
FORMULA FOR MOMENT OF INERTIA
HOW WILL ANALYSES RCC BEAM IN ANSYS
LAWS OF THERMODYNAMICS
CARNOT CYCLE EXPLAIN?
WHAT IS TQM, TPM, JIT, 5S PRINCIPLE?
DEFINE FORCE?
CHARLES LAW ,BOYLES LAW
WHY DO YOU USE COOLANT WHILE MACHINING?
IRON CARBON EQUILIBRIUM DIAGRAM EXPLAIN?
QUESTIONS REGARDING YOUR ELECTIVES & IN-PLANT TRAINING
YOUR PERSONAL INTEREST
DIFFERENT TYPES OF LOAD ACTING ON BEAM
WHETHER SHEAR FORCE ACT ON RAILWAY BRIDGE?
WHAT SUBJECTS YOU STUDIED ,QUESTIONS ON THE SUBJECTS YOU SAY
DESIGN A FAN
WHAT IS THE DIRECTION OF ROTATION OF CEILING FAN ?
WHY IT ALWAYS ROTATES IN ANTICLOCKWISE DIRECTION?
IF YOU CHANGE DIRECTION OF ROTATION WHAT WILL HAPPEN?
Thanks for the crompton greaves interview questions as many people try to get in there as crompton greaves pumps getting in very good success.
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