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Machine Design

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

0.33
0.5
0.4
0.55

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Machine Design
A taper key which fits half in the key way of the hub and half in the key way of shaft, is known as

Internal bevel gears
Crown Bevel gears
Mitre gears
Angular bevel gears

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Machine Design
Euler’s formula for a mild steel column is not valid if the slenderness ratio is

120
90
60
100

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Machine Design
For a shaft diameter of 200 mm, the number of bolts in a marine flange coupling should be

4
8
10
6

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Machine Design
All stresses produced in a belt are

Shear stresses
Compressive stresses
Both tensile and compressive stresses
Tensile stresses

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Machine Design
Fibrous fracture occurs in

Ductile material
Brittle material
Elastic material
Hard material

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