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Machine Design

Machine Design
Screws used for power transmission should have

High efficiency
Low efficiency
Very fine threads
Strong teeth

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Machine Design
The size of a gear is usually specified by

Diametral pitch
Circular pitch
Pressure angle
Pitch circle diameter

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Machine Design
The maximum shear stress theory is used for

Nonferrous materials
Brittle materials
Ductile materials
Plastic materials

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Machine Design
The piston pin bearings in heavy duty diesel engines are

Needle roller bearings
Cylindrical roller bearings
Tapered roller bearings
Spherical roller bearings

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Machine Design
A chain drive transmits __________ power as compared to belt drive.

Less
None of these
Same
More

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Machine Design
In the levers of first type, the mechanical advantage is ________ one.

Less than
None of these
Equal to
More than

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