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Machine Design

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

10
6
4
8

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Machine Design
Fabric belts are used in industrial applications because

They can work at high temperature
None of these
They are unaffected by moisture and humidity
They are cheap

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Machine Design
Gears are casted by

Centrifugal casting
Slush casting
Sand mould casting
Permanent mould casting

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Machine Design
Which of the following key is preferred for the condition when a large amount of impact type torque is to be transmitted in both direction of rotation?

Feather key
Woodruff key
Gib-head key
Tangent key

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Machine Design
In nitrated parts, the origins of the fatigue cracks will occur at

Within the core
Just below the surface
None of these
Surface

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Machine Design
The standard length of the shaft is

5 m
6 m
7 m
All of these

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