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Machine Design

Machine Design
The diameter of the rivet hole is usually __________ the nominal diameter of the rivet.

Less than
More than
None of these
Equal to

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Machine Design
Which of the following is an anti-friction bearing?

Needle bearing
Pedestal bearing
Collar bearing
Journal bearing

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Machine Design
For high speed engines, the cam follower should move with

Uniform velocity
Simple harmonic motion
Uniform acceleration and retardation
Cycloidal motion

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Machine Design
The power transmitted by belt drive depends upon

Belt velocity
Arc of contact
Initial belt tension
All of these

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Machine Design
The stiffness of a closely coiled helical spring subjected to an axial load W is equal to (where G = Modulus of rigidity, and n = Number of active coils)

Gd⁴/ 8D3n
Gd3/ 8D3n
Gd⁴/ 4D3n
Gd⁴/ 8D²n

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

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

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