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Machine Design

Machine Design
A locking device extensively used in automobile industry is a

Ring nut
Jam nut
Sawn nut
Castle nut

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Machine Design
When a circular beam of diameter d is subjected to a shear force F, the maximum shear stress induced will be

4F/ πd²
8F/ πd²
16F/ 3πd²
6F/ πd²

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Machine Design
A steel containing up to 0.15% carbon is known as

Dead mild steel
Mild steel
Medium carbon steel
High carbon steel

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Machine Design
A steel containing _________ 0.8% carbon is known as hypo-eutectoid steel.

None of these
Equal to
Less than
Greater than

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Machine Design
Taper usually provided on cotter is

1 in 24
1 in 40
1 in 5
1 in 10

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Machine Design
A connecting rod should be

Equally strong in buckling about X-axis and Y-axis
Any one of the above
Strong in buckling about X-axis
Strong in buckling about Y-axis

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