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Machine Design

Machine Design
The helix angle for double helical gears may be made up to

90°
60°
75°
45°

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Machine Design
The width of the pulley should be __________ width of the belt.

Less than
Greater than
None of these
Equal to

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

35°
60°
45°
20°

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Machine Design
When the length of the journal is equal to the diameter of the journal, then the bearing is said to be a

Square bearing
Short bearing
Long bearing
Medium bearing

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Machine Design
A locking device in which the bottom cylindrical portion is recessed to receive the tip of the locking set screw, is called

Jam nut
Sawn nut
Castle nut
Ring nut

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Machine Design
In helical gears, the right hand helixes on one gear will mesh __________ helixes on the other gear.

Both A and B
None of these
Right hand
Left hand

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