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Machine Design

Machine Design
If a material fails below its yield point, failure would be due to

Straining
Sudden loading
Creep
Fatigue

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Machine Design
The cold working of metals is carried out __________ the recrystallization temperature.

None of these
Above
At
Below

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

1/π
π × number of teeth
1
π

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Machine Design
The piston rod of a steam engine is usually connected to the cross-head by means of

Bolted joint
Universal joint
Knuckle joint
Cotter joint

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Machine Design
The maximum efficiency of a square threaded screw is

(1 - sinφ)/ (1 + cosφ)
(1 + sinφ)/ (1 - sinφ)
(1 - sinφ)/ (1 + sinφ)
(1 + cosφ)/ (1 - sinφ)

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Machine Design
The backlash for spur gears depends upon

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

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