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Machine Design

Machine Design
Rankine Gordon formula for buckling is valid for

Short column
Long column
Very long column
Short and long column

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Machine Design
The rolling contact bearings as compared to sliding contact bearings have

Low starting and low running friction except at very high speeds
Small overall dimensions
All of these
Accuracy of shaft alignment

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Machine Design
For a square key made of mild steel, the shear and crushing strength are related as

Shear strength is equal to crushing strength
Shear strength is greater than crushing strength
Shear strength is less than crushing strength
None of these

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Machine Design
The function of a washer is to

Provide bearing area
Provide smooth surface in place of rough surface
Provide cushioning effect
Absorb shocks and vibrations

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Machine Design
A universal coupling is used to connect two shafts

Which are perfectly aligned
Have lateral misalignment
Which are not in exact alignment
Whose axes intersect at a small angle

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Machine Design
In designing a connecting rod, it is considered like __________ for buckling about Y-axis.

One end fixed and the other end free
Both ends fixed
One end fixed and the other end hinged
Both ends hinged

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