Machine Design Mcqs
This set of Mechanical engineering Multiple Choice Questions & Answers (MCQs) focuses on study of “ Machine Design ”. These questions are chosen from a collection of most authoritative and best reference books on Mechanical engineering. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, University and College entrance exams, Jobs and interviews. One should practice our MCQS to assimilate Machine Design comprehensively.
122. A key capable of tilting in a recess milled out in a shaft is known as______________________?
Wood-ruff key
Feather key
Flat saddle key
Gib head key
Answer & Solution
No Solution for this Answer..! Report or Discus this Question
123. Buttress threads are usually found on____________________?
Screw cutting lathes
Feed mechanisms
Spindles of bench vices
Screw jack
Railway carriage couplings
Answer & Solution
No Solution for this Answer..! Report or Discus this Question
124. Jam nut is a locking device in which _____________________?
One smaller nut is tightened over main nut and main nut tightened against smaller one by loosening, creating friction jamming
A slot is cut partly in middle of nut and then slot reduced by tightening a screw
A hard fiber or nylon cotter is recessed in the nut and becomes threaded as the nut is screwed on the bolt causing a tight grip
Through slots are made at top and a cotter-pin is passed through these and a hole in the bolt, and cotter spitted and bent in reverse direction at other end
Answer & Solution
No Solution for this Answer..! Report or Discus this Question
125. If the tearing efficiency of a riveted joint is 75%, then the ratio of diameter of rivet to the pitch is equal to___________________?
0.2
0.25
0.50
0.6
126. Which of the following is a permanent fastening ?
Bolts
Keys
Cotters
Rivets
127. Rivets are generally specified by_______________?
Thickness of plates to be riveted
Length of rivet
Diameter of head
Nominal diameter
Answer & Solution
No Solution for this Answer..! Report or Discus this Question
128. The designation M 33 x 2 of a bolt means___________________?
Metric threads of 33 nos in 2 cm.
Metric threads with cross-section of 33 mm
Metric threads of 33 mm outside diameter and 2 mm pitch
Bolt of 33 mm nominal diameter having 2 threads per cm
Answer & Solution
No Solution for this Answer..! Report or Discus this Question