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Machine Design

Machine Design
The groove angle of the pulley for rope drive is usually

20°
60°
35°
45°

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Machine Design
The centre to centre distance between two consecutive rivets in a row, is called

Diagonal pitch
Back pitch
Pitch
Margin

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Machine Design
All stresses produced in a belt are

Compressive stresses
Both tensile and compressive stresses
Shear stresses
Tensile stresses

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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

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

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Machine Design
Two shafts A and B are made of the same material. The diameter of shaft A is twice as that of shaft B. The power transmitted by the shaft A will be __________ of shaft B.

Twice
Sixteen times
Four times
Eight times

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Machine Design
An elastic bar is fixed at the upper end and loaded at the lower end by a falling weight. The shock load produced can be reduced by

Increasing the length of bar
Decreasing the cross-sectional area of the bar
Decreasing the modulus of elasticity of the bar
All of these

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