A. 60°
B. 55°
C. 47°
D. 29°
E. none of the above
Related Mcqs:
- 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 - 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 - If an application calls for stresses on screw threads in one direction only, then the following type of thread would be best suited ________________?
A. square
B. acme
C. buttress
D. BSW
E. metric - 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 - In standard taper roller bearings, the angle of taper of outer raceway is___________________?
A. 5°
B. 8°
C. 15°
D. 25°
E. 40°. - The notch angle of the Izod impact test specimen is________________?
A. 10°
B. 20°
C. 30°
D. 45°
E. 60°. - The edges of a boiler plate are bevelled to an angle of______________?
A. 30°
B. 45°
C. 60°
D. 80°
E. 85°. - The edges of the plates for cylindrical vessels are usually bevelled to an angle of 80° for_________________?
A. reducing stress concentration
B. ease of manufacture
C. safety
D. fullering and caulking
E. all of the above - An alien bolt is___________________?
A. self locking bolt
B. same as stud
C. provided with hexagonal depression in head
D. used in high speed components
E. provided with countersunk head
