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Machine Design

Machine Design
If a spring is cut down into two springs, the stiffness of cut springs will be

None of these
Half
Same
Double

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Machine Design
In skew bevel gearing, the axes of shafts are

Intersecting and the teeth are curved
None of these
Non-intersecting and nonparallel and the teeth are curved
Non-intersecting and non-parallel and the teeth are straight

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Machine Design
The material generally used for aircraft components is

Stainless steel
Mild steel
High speed steel
Aluminium

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Machine Design
In a horizontal flat belt drive, it is customary to use

Idler pulley
Top side of belt as slack side
None of these
Bottom side of belt as slack side

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Machine Design
Which of the following is not correct procedure to increase the fatigue limit?

Under stressing
Cold working
Surface decarburisation
Shot peening

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Machine Design
The ratio of endurance limit in shear to the endurance limit in flexure is

0.55
0.4
0.5
0.33

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