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Machine Design

Machine Design
The efficiency of a riveted joint is equal to

Pc /P
Least of Pt, Ps and Pc/P
Pt /P
Ps /P

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Machine Design
The rivet head used for boiler plate riveting is usually

Conical head
Counter sunk head
Pan Head
Snap head

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Machine Design
The speed of the sprocket reduces as the chain pitch __________ for a given number of teeth.

Remain same
Increases
Decreases
None of these

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Machine Design
The wire ropes make contact at

Anywhere in the groove of the pulley
Sides of groove of the pulley
Sides and bottom of groove of the pulley
Bottom of groove of the pulley

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Machine Design
A localized compressive stress at the area of contact between two members is known as

Shear stress
Bending stress
Tensile stress
Bearing stress

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Machine Design
The maximum stress due to stress concentration in a bar having circular transverse hole, as compared to its static stress without hole will be

3 times more
2 times more
Same in both cases
4 times more

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