Machine Design MCQ Questions & Answers | Mechanical Engineering

A. Joint may not open up

B. Bolts are weakest elements

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

D. Bolts will not loosen during service

A. $$14{\frac{1}{2}^ \circ }$$ full depth involute tooth

B. 20° full depth involute tooth

C. 20° involute stub tooth

D. $$14{\frac{1}{2}^ \circ }$$ stub tooth

A. The Oil film pressure is generated only by the rotation of the journal

B. The oil film is maintained by supplying oil under pressure

C. Do not require external supply of lubricant

D. Grease is used for lubrication

A. Less than

B. Equal to

C. More than

D. None of these

A. For conveying steam

B. In water and sewage systems

C. In pressure lubrication systems on prime movers

D. All of the above

A. An axial compressive force

B. A tangential force

C. An axial tensile force

D. Any one of these

A. Flanged

B. Threaded

C. Bell and spigot

D. Expansion

A. $$14{\frac{1}{2}^ \circ }$$ composite and full depth involute system

B. 20° full depth involute system

C. 20° stub system

D. None of the above

A. Half

B. Twice

C. Thrice

D. None of these

A. 1 : 1

B. 2 : 1

C. 3 : 2

D. 2 : 3