A steel bar is 4 m long, 30 mm wide, 20 mm thick is subjected to an ax – McqOptions

MCQOPTIONS

1.	A steel bar is 4 m long, 30 mm wide, 20 mm thick is subjected to an axial pull of 30 kN in the direction of its length. Given modulus of elasticity of the material of the bar as 2 × 105 N/mm2, Poisson’s ratio is 0.3. The lateral strain is _______.
A.	0.000432
B.	0.000162
C.	0
D.	0.000075
Answer» E.

Discussion

No Comment Found

Related MCQs

A substance breaks down by a stress of (106 N)/m2. If the density of the material of the wire is 3×(103) kg/m3, then the length of the wire of the substance which will break under its own weight when suspended vertically will be ___________
The diameter of brass rod is 4mm. Young’s modulus of brass is 9×109 N/m2. The force required to stretch 0.1% of its length is ___________
Which of the following affects the elasticity of a substance?
The breaking stress of a wire depends upon ___________
A stretched rubber has ___________
If in a wire of Young’s modulus Y, longitudinal strain is produced, then the value of potential energy stored in its unit volume will be ___________
According to Hooke’s law of elasticity, if stress is increased, the ratio of stress to strain?
Energy stored in stretching a string per unit volume is ___________
A cube is subjected to a uniform volume compression. If the side of the cube decreases by 2%, the bulk strain is ___________
There are two wires of same material and same length while the diameter of second wire is two times the diameter of first wire, then the ratio of extension the diameter of first wire, then the ratio of extension produced in the wire by applying same load will be _____________