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Machine Design

Machine Design
The diameter of the rivet hole is usually __________ the nominal diameter of the rivet.

More than
Less than
Equal to
None of these

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Machine Design
The railway carriage couplings have

Buttress threads
Acme threads
Square threads
Knuckle threads

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

40°
60°
45°
38°

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Machine Design
A circular shaft can transmit a torque of 5 kN-m. If the torque is reduced to 4 kN-m, then the maximum value of bending moment that can be applied to the shaft is

3 kN-m
1 kN-m
2 kN-m
4 kN-m

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

Making shank diameter equal to core diameter of thread
Grinding the shank
Increasing shank diameter
Tightening it properly

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Machine Design
If the size of a standard specimen for a fatigue testing machine is increased, the endurance limit for the material will

Decrease
None of these
Increase
Have same value as that of standard specimen

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