Engineering :: Strength of Materials

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201.

When two shafts of same length, one of which is hollow, transmit equal torques and have equal maximum stress, then they should have equal

A.	polar moment of inertia	B.	polar modulus
C.	diameter	D.	angle of twist

202.

For the two shafts connected in parallel and sub-jected to twisting moment, the angle of twist of each shaft will be same.

Yes

203.

A shaft of diameter D is subjected to a twisting moment (T) and a bending moment (M). If the maximum bending stress is equal to maximum shear stress developed, then M is equal to

A.	T / 2	B.	T
C.	2 T	D.	4 T

204.

In spring balances, the spring is used

A.	to apply forces	B.	to measure forces
C.	to absorb shocks	D.	to store strain energy

205.

In watches, the spring is used to absorb shocks and vibrations.

Yes

206.

The springs in cars are used to store strain energy.

Correct

Incorrect

207.

The springs in brakes and clutches are used to

A.	to apply forces	B.	to measure forces
C.	to store strain energy	D.	to absorb shocks

208.

A spring, when loaded, is permanently distorted and recover its original shape when the load is removed.

Agree

Disagree

209.

In a watch, the spring is used to store strain energy. This energy is released

A.	to stop the watch	B.	to run the watch
C.	to change the time	D.	all of these

210.

A spring used to absorb shocks and vibrations is

A.	conical spring	B.	torsion spring
C.	leaf spring	D.	disc spring