# Strength of Materials MCQ Question with Answer

## Strength of Materials MCQ with detailed explanation for interview, entrance and competitive exams. Explanation are given for understanding.

Question No : 1
In a belt drive, the pulley diameter is doubled, the belt tension and pulley width remaining same. The changes required in key will be

Increase key length
Increase key depth
Increase key width
Double all the dimensions

Question No : 2
The energy stored in a body when strained within elastic limit is known as

Resilience
Proof resilience
Strain energy
Impact energy

Question No : 3
Tensile strength of a material is obtained by dividing the maximum load during the test by the

Area at the time of fracture
Original cross-sectional area
Average of (A) and (B)
Minimum area after fracture

Question No : 4
A pressure vessel is said to be a thick shell, when

It is made of thick sheets
The internal pressure is very high
The ratio of wall thickness of the vessel to its diameter is less than 1/10.
The ratio of wall thickness of the vessel to its diameter is greater than 1/10.

Question No : 5
The ratio of the largest load in a test to the original cross-sectional area of the test piece is called

Elastic limit
Yield stress
Ultimate stress
Breaking stress

Question No : 6
The buckling load for a given material depends on

Slenderness ratio and area of cross-section
Poisson's ratio and modulus of elasticity
Slenderness ratio and modulus of elasticity
Slenderness ratio, area of cross-section and modulus of elasticity

Question No : 7
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
2wl/3