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41.

Static loading of a specimen

A.	Is done in steps	B.	Is done by continuously increasing the work load
C.	Is done by applying load in a short period during specified intervals	D.	Is done by applying the load slowly enough so that all parts of the specimen are in equilibrium at any instant
E.	None of the above

42.

When the deformation arising from change of temperature is presented, the stresses set up are known as

A.	Compressive stresses	B.	Tensile stresses
C.	Shear stresses	D.	Thermal stresses
E.	None of the above

43.

The potential energy stored up in a deformed body is known as

A.	Strain energy	B.	Potential energy
C.	Resilience	D.	Deformation energy
E.	None of the above

44.

Two rods A and B are subjectd to equal load P. Rod A is tapering with bigger diameter D at the support and small end diameter as D/2. Rod B is of uniform cross section with diameter D. The ratio of elongation of rod A to that of B would be

A.	4	B.	2
C.	1

45.

A load of 10,000 kg is applied to copper cylinder 20 cm long and 5 cm in diameter causes the length to increase by 4 mm and diameter to decrease by 0.4 mm. The Poisson's ratio for copper would be

A.	0.23	B.	0.33
C.	0.25	D.	0.6
E.	0.4

46.

A non-wielding support means

A.	Support that does not elongate	B.	Support that restores elongation after the load is removed
C.	Support holds the load firmly and safely	D.	Support is frictionless
E.	Slope of the beam at the support is zero

47.

The modulus of rigidity is defined as

A.	The ratio of true stress to true strain	B.	The ratio of shear stress to shear strain
C.	The ratio of longitudinal stress to longitudinal strain	D.	The ratio of twisting moment to cross-sectional area
E.	None of the above

48.

In design of a shaft, pulley and key for a system

A.	Shaft is the weakest member	B.	Pulley is the weakest member
C.	Key is the weakest member	D.	All are designed equally strong
E.	None of the above

49.

In a universal testing machine during the testing of a specimen of original cross-sectional area 1 cm2 the maximum load appliied was 7.5 tonnes and neck area 0.6 sq. cm. The ultimate tensile strength of the specimen is

A.	12.5 tonnes/cm2	B.	10.0 tonnes/cm2
C.	7.5 tonnes/cm2	D.	4.5 tonnes/cm2
E.	None of the above

50.

The moment of inertia of an area is always least with respect to

A.	Bottom most axis	B.	Radius of gyration
C.	Central axis	D.	Vertical axis
E.	None of the above