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Machine Design

Machine Design
The diameter of knuckle pin in a knuckle joint is usually taken as (where d = Diameter of the rod)

0.8 d
1.2 d
0.5 d
d

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Machine Design
The face angle of a bevel gear is equal to

Pitch angle - addendum angle
Pitch angle + addendum angle
Pitch angle + dedendum angle
Pitch angle - dedendum angle

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Machine Design
In a horizontal flat belt drive, it is customary to use

Top side of belt as slack side
Idler pulley
None of these
Bottom side of belt as slack side

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

Twice
Thrice
None of these
Half

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Machine Design
Shear stress theory is applicable for

Elastic materials
Ductile materials
Brittle materials
All of these

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Machine Design
In a belt drive, if the pulley diameter is doubled keeping the tension and belt width constant, then it will be necessary to

Decrease the key length
Increase the key width
Increase the key depth
Increase the key length

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