Buttress threads are usually found on____________________?

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 included angle in unified of American National threads is___________________?

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

4. 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

5. 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

6. Taper usually provided on cotter is_________________?

   A. 1 in 5
   B. 1 in 10
   C. 1 in 24
   D. 1 in 40
   E. 1 in 50

7. 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

8. Aircraft body is usually fabricated by_________________?

   A. welding
   B. precasting
   C. rivetting
   D. casting
   E. unconventional methods

9. The piston rod of a steam engine is usually connected to the cross head by means of__________________?

   A. bolted joint
   B. kunckle joint
   C. cotter joint
   D. universal joint
   E. universal coupling

10. If an unsupported uniform cross sectional elastic bar is subjected to a longitudinal impact from a rigid bob moving with velocity v, then a compressive wave of intensity sc is propagated through the bar as follows______________________?

    A. vpE
    B. vVvF
    C. WpE/2
    D. IvHpE
    E. none of the above, where E = modulus of elasticity and p = mass density