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Machine Design

Machine Design
Aircraft body is usually fabricated by

Pre-casting
Riveting
Welding
Casting

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Machine Design
The radial distance from the __________ to the clearance circle is called working depth.

Dedendum circle
None of these
Addendum circle
Pitch circle

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Machine Design
Rankine Gordon formula for buckling is valid for

Short column
Long column
Short and long column
Very long column

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Machine Design
Shaft coupling is used in machinery to

Reduce the transmission of shock loads
All of these
Introduce mechanical flexibility
Introduce protection against over loads

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Machine Design
The endurance limit for a mirror polished material will be __________ as compared to unpolished material.

Less
Same
None of these
More

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Machine Design
The power transmitted by the belt drive can be increased by

All of these
Increasing wrap angle by using idler pulley
Increasing the initial tension in the belt
Dressing the belt to increase the coefficient of friction

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