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Machine Design

Machine Design
A crankshaft is a __________ shaft.

Machine frame
Machine
Transmission
None of these

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Machine Design
When a material is subjected to fatigue loading, the ratio of the endurance limit to the ultimate tensile strength is

0.65
0.5
0.35
0.2

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Machine Design
A thin spherical shell of internal diameter d is subjected to an internal pressure p. If V is the storage capacity of shell, then its diameter will be

(6V/ π)1/3
(6V/ π)1/2
(6V/ π)2
(6V/ π)3

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

Shot peening
Electroplating
Polishing
Coating

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Machine Design
The value of stress concentration factor depends upon

Geometry of the part
Material and geometry of the part
None of these
Material of the part

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Machine Design
The diameter of knuckle pin in a knuckle joint is usually taken as (where d = Diameter of the rod)

0.8 d
0.5 d
d
1.2 d

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