Related Mcqs:

1. When a bolt is subjected to shock loading, the resilience of the bolt should be considered in order to prevent breakage at_______________?

   A. shank
   B. head
   C. in the middle
   D. at the thread
   E. anywhere in the bolt

2. If d is the normal diameter of a bolt in mm, then the initial tension in kg in a bolt used for making a fluid tight joint as for steam engine cover joint is calculated by the relation_______________?

   A. 102 d
   B. 124 d
   C. 138 d
   D. 151 d
   E. 168 d

3. 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

4. If d is the diameter of bolt hole then for a flanged pipe joint to be leak proof, the circumferential pitch of the bolts should be_________________?

   A. lOVZ
   B. 10VZtol5Vd
   C. 15Vdto20VZ
   D. 20Vdto30Vd
   E. 30V5″to40Vd

5. When a nut is tightened by plaping a washer below it, the bolt will be subjected to following type of loads___________________?

   A. compression
   B. tension
   C. shear
   D. combined loads
   E. all of the above

6. The shock absorbing capacity of a bolt can be increased by___________________?

   A. tightening it properly
   B. increasing shank diameter
   C. grinding the shank
   D. using washer
   E. making shank diameter equal to core diameter of thread

7. The resultant axial load on a bolt depends on_______________?

   A. initial tension
   B. external load applied
   C. relative elastic yielding (springness) of the bolt and the connected member
   D. A. and B. above
   E. A, B. and C. above

8. 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

9. If shearing stress in nut is half the tensile stress in a bolt, then nut length should be equal to___________________?

   A. diameter of bolt
   B. 0.75 x diameter of bolt
   C. 1.25 x diameter of bolt
   D. 1.5 x diameter of bolt
   E. 0.5 x diameter of bolt

10. 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