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Machine Design

Machine Design
The V-belts are particularly suitable for __________ drives.

Short
Long
None of these
Both A and B

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Machine Design
In a flange coupling, the keys are staggered at __________ along the circumference of the shafts in order to divide the weakening effect caused by key ways.

180°
90°
135°
160°

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Machine Design
For standard coarse threads of nut, the threads will be as strong in failure by shear as the bolt in tension, if the height of nut (h) is approximately

0.7 times
0.6 times
0.8 times
0.4 times

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Machine Design
The stretching in a belt can be controlled by __________ the stress in the belt.

Reducing
None of these
Increasing
Both A and B

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Machine Design
All stresses produced in a belt are

Compressive stresses
Shear stresses
Both tensile and compressive stresses
Tensile stresses

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Machine Design
The valve rod in a steam engine is connected to an eccentric rod by

Bolted joint
Knuckle joint
Universal coupling
Cotter joint

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