Related Mcqs:

1. 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

2. 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

3. Resilience of a material is important, when it is subjected to________________?

   A. combined loading
   B. fatigue
   C. thermal stresses
   D. wear and tear
   E. shock loading

4. Yield point in fatigue loading as compared to static loading is__________________?

   A. same
   B. higher
   C. lower
   D. depends on other factors
   E. none of the above

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. In order to obtain bolt of uniform strength____________________?

   A. increase shank diameter
   B. increase its length
   C. drill an axial hole through head up to threaded portion so that shank area is equal to root area of thread
   D. tighten die bolt properly
   E. all of the above

7. 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

8. 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

9. 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

10. The designation M 33 x 2 of a bolt means___________________?

    A. metric threads of 33 nos in 2 cm.
    B. metric threads with cross-section of 33 mm
    C. metric threads of 33 mm outside diameter and 2 mm pitch
    D. bolt of 33 mm nominal diameter having 2 threads per cm
    E. none of the above