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Machine Design

Machine Design
Crushing resistance required to crush the rivet per pitch length is

(p - d) t.σc
n.d.t.σc
p.t.σc
p.d.σc

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

Higher
Same
Lower
None of these

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Machine Design
A thin spherical shell of internal diameter d is subjected to an internal pressure p. If σt is the tensile stress for the shell material, then thickness of shell is equal to

pd/4σt
pd/3σt
pd/2σt
pd/σt

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Machine Design
The design of shafts made of brittle materials is based on

Guest's theory
Von Mises theory
Rankine's theory
St Venant's theory

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Machine Design
The rated life of a bearing varies

Inversely as cube of load
Inversely as square of load
Directly as load
Inversely as fourth power of load

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Machine Design
The crest diameter of a screw thread is same as

Core diameter
Major diameter
Minor diameter
Pitch diameter

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