Some of it's technical questions are given below. @Electrical Engineers: Please try to answer them.
1) Magnetic compass indicates
a) true north pole b) alionic 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 #-Link-Snipped-##-Link-Snipped-#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 you appl#-Link-Snipped-#y 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 are 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.Normalising is
a.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.Hookes 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
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