Machine Design MCQs

Question 1

The elasticity is the property of a material which enables it to

Accepted Answer

Regains its original shape after deformation when the external forces are removed

Answer

Draw into wires by the application of a tensile force

Answer

Resists fracture due to high impact loads

Answer

Retain deformation produced under load permanently

Question 2

The plasticity is the property of a material which enables it to

Accepted Answer

Retain deformation produced under load permanently

Answer

Regain its original shape after deformation when the external forces are removed

Answer

Draw into wires by the application of a tensile force

Answer

Resist fracture due to high impact loads

Question 3

Taper usually provided on cotter is

Accepted Answer

1 in 24

Answer

1 in 5

Answer

1 in 10

Answer

1 in 40

Question 4

The included angle between the sides of V-belt is

Accepted Answer

40°

Answer

45°

Answer

38°

Answer

60°

Question 5

The width of the pulley should be __________ width of the belt.

Accepted Answer

Greater than

Answer

Equal to

Answer

Less than

Answer

None of these

Question 6

The material used for brake lining should have __________ coefficient of friction.

Accepted Answer

High

Answer

Low

Answer

Moderate

Answer

None of these

Question 7

Form coefficient of spring is

Accepted Answer

Its capability of storing energy

Answer

Ratio of coil diameter to wire diameter

Answer

Load required to produce unit deflection

Answer

Concerned with strength of wire of spring

Question 8

The piston pin bearings in heavy duty diesel engines are

Accepted Answer

Needle roller bearings

Answer

Tapered roller bearings

Answer

Spherical roller bearings

Answer

Cylindrical roller bearings

Question 9

A locking device extensively used in automobile industry is a

Accepted Answer

Castle nut

Answer

Jam nut

Answer

Sawn nut

Answer

Ring nut