Related Questions

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
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
According to Unwin's formula, the relation between diameter of rivet hole (d) and thickness of plate (t) is given by (where d and t are in mm)
A d = t
B d = 1.6 t
C d = 2t
D d = 6t
In order to avoid tearing of the plate at edge, the distance from the center line of the rivet hole to the nearest edge of the plate in terms of dia. of rivet d should be equal to
A 1 d
B 1.25 d
C 1.5 d
D 1.75 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
Diameter of rivet hole (d, mm) and the plate thickness (t, mm) are related by Unwin's formula as
A d = 1.1 t
B d = 1.6$$\sqrt {\text{t}} $$
C d = 1.5 t
D d = 3$$\sqrt {\text{t}} $$
According to Indian standards, the diameter of rivet hole is made larger than the basic size of rivet by
A 0.5 mm up to rivet diameter of 24 mm
B 1 mm for rivet diameter from 27 mm to 36 mm
C 2 mm for rivet diameter from 39 mm to 48 mm
D All of the above
A plate with an elliptical hole in the centre, with semi-major axis (a) perpendicular to the direction of loading and semi-minor axis (b) along the direction of loading, is subjected to a pull P. The maximum stress induced at the edge of the hole is equal to (where $$\sigma $$ = Stress for a plate with no hole i.e. nominal stress)
A $$\sigma \left( {1 + \frac{{\text{b}}}{{2{\text{a}}}}} \right)$$
B $$\sigma \left( {1 + \frac{{2{\text{a}}}}{{\text{b}}}} \right)$$
C $$\sigma \left( {1 + \frac{{\text{b}}}{{3{\text{a}}}}} \right)$$
D $$\sigma \left( {1 + \frac{{3{\text{a}}}}{{\text{b}}}} \right)$$
Tearing resistance required to tear off the plate per pitch length is (where p = Pitch of rivets, d = Dia. of rivet hole and $${\sigma _{\text{t}}}$$ = Permissible tensile stress for plate material)
A $${\text{pd}}{\sigma _{\text{t}}}$$
B $${\text{pt}}{\sigma _{\text{t}}}$$
C $$\left( {{\text{p}} - {\text{d}}} \right){\sigma _{\text{t}}}$$
D $$\left( {{\text{p}} - {\text{d}}} \right){\text{t}}{\sigma _{\text{t}}}$$

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