A. 60°
B. 55°
C. 47°
D. 29°
E. none of the above

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Related Mcqs:

  1. 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...
  2. 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...
  3. 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...
  4. 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...
  5. 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...
  6. In standard taper roller bearings, the angle of taper of outer raceway is___________________?
    A. 5° B. 8° C. 15° D. 25° E. 40°....
  7. The notch angle of the Izod impact test specimen is________________?
    A. 10° B. 20° C. 30° D. 45° E. 60°....
  8. The edges of a boiler plate are bevelled to an angle of______________?
    A. 30° B. 45° C. 60° D. 80° E. 85°....
  9. 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...
  10. 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...
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