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Machine Design

Machine Design
The suitable material for belt in agricultural machinery is

Cotton duck
Leather
Balata gum
Rubber

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Machine Design
In radial cams, the follower moves

In a direction parallel to the cam axis
Along the cam axis
In a direction perpendicular to the cam axis
In any direction irrespective of cam axis

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Machine Design
The shock absorbing capacity of a bolt may be increased by

Increasing its shank diameter
Making the shank diameter equal to core diameter of thread
Decreasing its shank diameter
Tightening the bolt properly

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Machine Design
A saddle key __________ power through frictional resistance only.

None of these
Does not transmit
Transmits
Either A or B

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Machine Design
A shaft is subjected to fluctuating loads for which the normal torque (T) and bending moment (M) are 1000 N-m and 500 N-m respectively. If the combined shock and fatigue factor for bending is 1.5 and combined shock and fatigue factor for torsion is 2, then the equivalent twisting moment for the shaft is

2050 N-m
2100 N-m
2136 N-m
2000 N-m

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Machine Design
The power transmitted by the belt drive can be increased by

Increasing the initial tension in the belt
Increasing wrap angle by using idler pulley
All of these
Dressing the belt to increase the coefficient of friction

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