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Machine Design

Machine Design
The fatigue life of a part can be improved by

Coating
Electroplating
Shot peening
Polishing

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Machine Design
In designing thick cylinders, the equation used is

Clavarinos' equation
All of these
Lame's equation
Birnie's equation

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Machine Design
The design of pin of a rocker arm of an I.C. engine is based on

Shearing failure
Bearing failure
All of these
Bending failure

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Machine Design
According to Indian standards, the diameter of rivet hole is made larger than the basic size of rivet by

0.5 mm up to rivet diameter of 24 mm
2 mm for rivet diameter from 39 mm to 48 mm
1 mm for rivet diameter from 27 mm to 36 mm
All of these

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Machine Design
The backlash for spur gears depends upon

Pitch line velocity
Both module and pitch line velocity
Tooth profile
Module

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Machine Design
The power transmitted by the belt drive can be increased by

All of these
Dressing the belt to increase the coefficient of friction
Increasing wrap angle by using idler pulley
Increasing the initial tension in the belt

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