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Machine Design

Machine Design
The product of the diametral pitch and circular pitch is equal to

1/π
1
π × number of teeth
π

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Machine Design
Rankine's theory of failure is applicable for following type of materials

Ductile
Plastic
Brittle
Elastic

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Machine Design
When screw threads are to be used in a situation where power is being transmitted in one direction only, then the screw threads suitable for this will be

Buttress threads
Acme threads
Knuckle threads
Square threads

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Machine Design
In a partial journal bearing, the angle of contact of the bearing with the journal is

180°
360°
270°
120°

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Machine Design
The washer is generally specified by its

Thickness
Outer diameter
Mean diameter
Hole diameter

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Machine Design
Pick up wrong statement. Fatigue strength can be increased by

Grinding and lapping surface
Shot peening
Cold working
Hot working

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