Machine Design MCQ Question with Answer

Machine Design MCQ with detailed explanation for interview, entrance and competitive exams. Explanation are given for understanding.

Question No : 15
Eye bolts are used for

Foundation purposes

Absorbing shock and vibrations

Transmission of power

Lifting and transportation of machines and cubicles

Question No : 16
The deflection of a cantilever beam under load W is 8. If its width is halved, then the deflection under load W will be

2/8

8/2

4/8

8/4

Question No : 17
In a multiple V-belt drive, when a single belt is damaged, it is preferable to change the complete set in order to

Reduce vibration

Reduce slip

Ensure uniform loading

Ensure proper alignment

Question No : 18
In a transverse fillet welded joint, the size of weld is __________ the throat of weld.

0.5 times

Equal to

2 times

Double

Question No : 19
Which of the following screw thread is adopted for power transmission in either direction?

Acme threads

Square threads

Buttress threads

Multiple threads

Question No : 20
The connecting rod bolts are tightened up with initial tension greater than the external load so that

Joint may not open up

Bolts are weakest elements

The resultant load on the bolt would not be affected by the external cyclic load

Bolts will not loosen during service

Question No : 21
The objective of crowning of the flat pulleys of belt drive is to

Prevent the belt from running off the pulley

Increase the power transmission capacity

Increase the belt velocity

Prevent the belt joint from damaging the belt surface