Mechanical Engineering - Strength of Materials

36.
The rectangular beam 'A ' has length l, width b and depth d. Another beam 'B' has the same width and depth but length is double that of 'A'. The elastic strength of beam 'B' will be __________ as compared to beam A.
same
one-half
one-fourth
one-eighth
Answer: Option
Explanation:
No answer description is available. Let's discuss.

37.
A simply supported beam with a gradually varying load from zero at B and w per unit length at A is shown in the below figure. The shear force at B is equal to
wl/6
wl/3
wl
2 wl/3
Answer: Option
Explanation:
No answer description is available. Let's discuss.

38.
A tensile test is performed on a round bar. After fracture, it has been found that the diameter remains approximately same at fracture. The material under test was
mild steel
cast iron
glass
copper
Answer: Option
Explanation:
No answer description is available. Let's discuss.

39.
In a simply supported beam carrying a uniformly distributed load w per unit length, the point of contraflexure
lies in the centre of the beam
lies at the ends of the beam
depends upon the length of beam
does not exist
Answer: Option
Explanation:
No answer description is available. Let's discuss.

40.
Modulus of rigidity may be defined as the ratio of
linear stress to lateral strain
lateral strain to linear strain
linear stress to linear strain
shear stress to shear strain
Answer: Option
Explanation:
No answer description is available. Let's discuss.