10,000+ Mechanical Engineering Online Test - 1

Question: 1

The intensity of stress which causes unit strain is called

(A) modulus of rigidity

(B) modulus of elasticity

(C) principal stress

(D) unit stress

Question: 2

At the principal planes

(A) the tensile stress is zero and the shear stress is maximum

(B) the tensile and compressive stresses are zero

(C) the normal stress is maximum or minimum and the shear stress is zero

(D) no stress acts

Question: 3

Strength of a beam is proportional to the square of its

(A) moment of inertia

(B) width

(C) depth

(D) length

Question: 4

Point of contraflexure occurs in

(A) overhanging beams

(B) cantilevers

(C) beams carrying load varying from zero at one end to maximum at other

(D) simply supported beam

Question: 5

When a beam is subjected to a transverse shearing force, the shear stress in the upper fibres will be

(A) depends on other data

(B) zero

(C) maximum

(D) minimum