A. square
B. acme
C. buttress
D. BSW
E. metric
Related Mcqs:
- For applications involving high stresses in one direction only the following type of thread would be best suited______________________?
A. ISO metric thread
B. acme thread
C. square thread
D. buttress thread
E. British Association thread - For standard coarse threads of nut, the threads will be as strong in failure by shear as the bolt in tension, if the height of nut (h) is approximately________________?
A. 0.4 times
B. 0.6 times
C. 0.7 times
D. 0.8 times
E. 0.9 times the normal diameter of bolt - If threads on a bolt are left hand, threads on nut will be_____________________?
A. right hand with same pitch
B. left hand with same pitch
C. could be left or right hand
D. right hand with fine pitch
E. left hand with fine pitch - For tight leakage joints, following type of thread is best suited ____________________?
A. metric
B. buttress
C. square
D. acme
E. NPT (national pipe threads) - The crest diameter of a screw thread is same as _____________________?
A. major diameter
B. minor diameter
C. pitch diameter
D. core diameter
E. none of the above - Applications in which stresses are encountered in one direction only uses following type of threads____________________?
A. metric
B. buttress
C. acme
D. square
E. BSW - The included angle in unified of American National threads is___________________?
A. 60°
B. 55°
C. 47°
D. 29°
E. none of the above - The pitch of threads on a Jock nut in comparison to pitch of nut is_________________?
A. same
B. coarser
C. finer
D. very coarse
E. very fine - Buttress threads are usually found on____________________?
A. screw cutting lathes
B. feed mechanisms
C. spindles of bench vices
D. screw jack
E. railway carriage couplings - A self locking screw has________________>
A. fine threads
B. coarse threads
C. coefficient of friction > tangent of load angle
D. hole for inserting split pin
E. two nuts for locking
