For a 25 mm hole drilled in plates to be rivetted, the shank diameter of the rivet should be __________ mm.

The plates to be joined with rivet are drilled with holes of a size slightly less than the shank diameter of the rivet.

A

True

B

False

For riveting, the size of hole drilled in plates is __________ shank diameter of rivet.

A

Equal to

B

Less than

C

Greater than

D

None of these

For a 25 mm hole drilled in plates, the diameter of rivet shank should be

A

23 mm

B

24.5 mm

C

25 mm

D

26 mm

Which of the following assumptions are made in the design of rivet joints? A. Rivets are stressed equally B. Stress in plate is maximum at mid-width C. Rivet hole is completely filled by rivet D. Friction between plates is neglected

A

only A

B

A and C only

C

B and D only

D

A, C and D only

Two plates each of thickness t are to be riveted together. If length of shank portion necessary to form the closing head is a, then length of rivet shank is given by?

A

2t+a c) t+2a d) Can’t be determined View Answer]

B

2(t+a)

C

t+2a

D

Can’t be determined

When the axis of load lies in the plane of rivet group, then the most heavily loaded rivet will be the one which (where, Fa is the load shared by each rivet due to axial load and Fm is the shearing load due to moment in any rivet.)

A

Is at the maximum distance from CG of the rivet group

B

Is at the minimum distance from CG of the rivet group

C

Gives the maximum angle between the two forces Fa and Fm

D

Gives the minimum angle between the two forces Fa and Fm

In order to avoid tearing of the plate at an edge, the distance from the centre line of the rivet hole to the nearest edge of the plate should be equal to (where d = Diameter of rivet hole)

A

1 d

B

1.5 d

C

2.5 d

D

2 d

In order to avoid tearing off the plate at an edge, the distance from the center of the rivet hole to the nearest edge of the plate (i.e. margin) should be (where d = Diameter of rivet hole in mm)

A

d

B

1.5 d

C

2 d

D

2.5 d

The diameter of the rivet hole is usually __________ the nominal diameter of the rivet.

A

Equal to

B

Less than

C

More than

D

None of these

In seive plate column, holes are drilled or punched in sizes ranging from 2.5 to 12 mm (5 mm being widely used). The hole pitch is normally __________ times the hole diameter to give the required hole area.

A

0.5 to 1.5

B

2.5 to 4.0

C

5 to 10

D

10 to 15

For a 25 mm hole drilled in plates to be rivetted, the shank diameter of the rivet should be __________ mm.

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