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Machine Design

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

Fatigue
Sudden loading
Straining
Creep

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Machine Design
Fabric belts are used in industrial applications because

They are unaffected by moisture and humidity
They are cheap
They can work at high temperature
None of these

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Machine Design
When a bolt is subjected to shock loading, the resilience of the bolt should be considered in order to prevent breakage at the

Shank
Thread
Head
Middle

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Machine Design
The notch sensitivity q is expressed in terms of fatigue stress concentration factor Kf and theoretical stress concentration factor Kt as

(Kt - 1)/ (Kf - 1)
(Kf - 1)/ (Kt - 1)
(Kf + 1)/ (Kt + 1)
(Kt + 1)/ (Kf + 1)

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Machine Design
Maximum principal stress theory is applicable for

Elastic materials
All of these
Ductile materials
Brittle materials

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Machine Design
The yield point in static loading is __________ as compared to fatigue loading.

Same
None of these
Lower
Higher

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