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Machine Design

Machine Design
In worm gears, the pressure angle is __________ the angle between two inclined faces in axial plane.

None of these
Thrice
Half
Twice

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Machine Design
The following type of nut is used with alien bolt

Slotted nut
Any one of the above
Hexagonal nut
Castle nut

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Machine Design
According to I.B.R., the efficiency of a triple riveted butt joint with double straps of unequal width (5 rivets per pitch length) should be

45 to 60%
80 to 90%
63 to 70%
70 to 83%

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Machine Design
Yield point in fatigue loading as compared to static loading is

Higher
Lower
Same
Depends on other factors

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Machine Design
For low and moderate speed engines, the cam follower should move with

Uniform velocity
Simple harmonic motion
Cycloidal motion
Uniform acceleration and retardation

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Machine Design
A screw is specified by its

Major diameter
Minor diameter
Pitch
Pitch diameter

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