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Machine Design

Machine Design
Yield point in fatigue loading as compared to static loading is

Higher
Same
Lower
Depends on other factors

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Machine Design
If a shaft made from ductile material is subjected to combined bending and twisting moment, calculations based on which one of the following failure theories will give the most conservative value?

Maximum distortion energy theory
Maximum principal stress theory
Maximum strain energy theory
Maximum shear stress theory

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Machine Design
When two non-parallel or intersecting but coplanar shafts are connected by gears, the arrangement is known as,

Worm gearing
None of these
Bevel gearing
Helical gearing

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Machine Design
In a butt welded joint, the size of weld is __________ the throat of weld.

2 times
0.5 times
Equal to
Double

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

Cotter joint
Universal joint
Oldham coupling
Knuckle joint

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Machine Design
A tapered key which fits in a key way in the hub and the bottom of which is shaped to fit the curved surface of the shaft, is known as,

Soft key
Hollow key
None of these
Hollow saddle key

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