11. By providing sufficient edge distance, which of the following failures of riveted joint can be avoided ?
a) tension failure of the plate
b) shear failure of the rivet
c) shear failure of the plate
d) crushing failure of the rivet
a) 1.5 d
b) 2.0 d
c) 2.5 d
d) 3.0 d
where d is gross diameter of rivet
a) 40%
b) 50%
c) 60%
d) 70%
a) Material cost of a rivet is higher than that of a bolt.
b) Tensile strength of a bolt is lesser than that of a rivet.
c) Bolts are used as a temporary fastenings whereas rivets are used as permanent fastenings.
d) Riveting is less noisy than bolting.
b) bending
c) axial tension
d) shear and bending
a) gross diameter of bolt
b) nominal diameter + 1.5 mm
c) nominal diameter + 2.0 mm
d) nominal diameter of bolt
a) black bolt
b) ordinary unfinished bolt
c) turned and fitted bolt
d) high strength bolt
a) minimum dimension
b) average dimension
c) maximum dimension
d) none of the above
a) two times the weld size
b) four times the weld size
c) six times the weld size
d) weld size
a) 1:1
b) 1 : V2
c) V2 : 1
d) 2: 1
a) tension failure of the plate
b) shear failure of the rivet
c) shear failure of the plate
d) crushing failure of the rivet
Ans: c
12. Minimum pitch of the rivets shall not be less thana) 1.5 d
b) 2.0 d
c) 2.5 d
d) 3.0 d
where d is gross diameter of rivet
Ans: c
13. Efficiency of a riveted joint, having the minimum pitch as per IS : 800, isa) 40%
b) 50%
c) 60%
d) 70%
Ans: c
14. Select the correct statementa) Material cost of a rivet is higher than that of a bolt.
b) Tensile strength of a bolt is lesser than that of a rivet.
c) Bolts are used as a temporary fastenings whereas rivets are used as permanent fastenings.
d) Riveting is less noisy than bolting.
Ans: c
15. Bolts are most suitable to carry
a) shearb) bending
c) axial tension
d) shear and bending
Ans: c
16. Diameter of a bolt hole is usually taken asa) gross diameter of bolt
b) nominal diameter + 1.5 mm
c) nominal diameter + 2.0 mm
d) nominal diameter of bolt
Ans: b
17. When the bolts are subjected to reversal of stresses, the most suitable type of bolt isa) black bolt
b) ordinary unfinished bolt
c) turned and fitted bolt
d) high strength bolt
Ans: d
18. In the cross-section of a weld, throat is thea) minimum dimension
b) average dimension
c) maximum dimension
d) none of the above
Ans: a
19. The effective length of a fillet weld should not be less thana) two times the weld size
b) four times the weld size
c) six times the weld size
d) weld size
Ans: b
20. For a standard 45° fillet, the ratio of size of fillet to throat thickness isa) 1:1
b) 1 : V2
c) V2 : 1
d) 2: 1
Ans: c
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