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Machine Design

Machine Design
In a marine flange coupling, the pitch circle diameter of bolts is taken as

2 d
2.5 d
1.6 d
1.2 d

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Machine Design
The velocity of sliding __________ the distance of the point of contact from the pitch point.

Is inversely proportional to
Is directly proportional to
Does not depend upon
Is equal to cos φ multiplied by

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Machine Design
The connecting rod bolts are tightened up so that tightening stress

Is 50% of yield point
Approaches yield point
Is just sufficient to hold parts together
Is about yield point divided by safety factor

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Machine Design
According to Indian standard specifications, a Grey cast iron designated by 'FG 200' means that the

Minimum tensile strength is 200 N/mm²
Carbon content is 2%
Maximum shear strength is 200 N/mm²
Maximum compressive strength is 200 N/mm²

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Machine Design
A chain drive transmits __________ power as compared to belt drive.

None of these
Less
Same
More

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Machine Design
A type of brake commonly used in motor cars is a

Band and block brake
Band brake
Internal expanding brake
Shoe brake

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