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Machine Design

Machine Design
Rankine's theory is used for

Elastic materials
Ductile materials
Brittle materials
Plastic materials

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Machine Design
The application of third type levers is found in

Handle of a hand pump
Lever of a loaded safety valve
Hand wheel of a punching press
A pair of tongs

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Machine Design
The resultant axial load on a bolt depends on

All of these
Initial tension
Relative elastic yielding (springness) of the bolt and the connected member
External load applied

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Machine Design
According to I.B.R., the efficiency of a double riveted butt joint with double cover straps of equal width should be

63 to 70%
70 to 83%
80 to 90%
45 to 60%

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Machine Design
Taper usually provided on cotter is

1 in 40
1 in 10
1 in 24
1 in 5

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Machine Design
The included angle between the sides of V-belt is

60°
38°
45°
40°

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