A steel bar of 5 mm is heated from 15Â° C to 40Â° C and it is free to expand. The bar Will induce - Mechanics

Mechanical Engineering : Mechanics - Strength of Materials - Quiz(MCQ)

A steel bar of 5 mm is heated from 15Â° C to 40Â° C and it is free to expand. The bar Will induce

no stress

shear stress

tensile stress

compressive stress

Correct Answer : Option (A) : no stress

Recently Updated in Mechanics - Strength of Materials Questions

The ratio of linear stress to the linear strain is called

bulk modulus

Poisson's ratio

modulus of elasticity

modulus of rigidity

Correct Answer : modulus of elasticity

A riveted joint may fail by

shearing of rivets

tearing of the plate at an edge

tearing of the plate across a row of rivets

any one of the above

Correct Answer : any one of the above

A body is subjected to a direct tensile stress of 300 MPa in one plane accompanied by a simple shear stress of 200 MPa. The minimum normal stress will be

-100 MPa

250 MPa

300 MPa

400 MPa

Correct Answer : -100 MPa

Mechanical Engineering MCQ's

Theory of Machines

Engineering Mechanics

Machine Design

Strength of Materials

Engineering Materials

Automobile Engineering

Steam Boilers and Engines