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Machine Design

Machine Design
In leaf springs, the longest leaf is known as

Upper leaf
Lower leaf
Master leaf
None of these

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Machine Design
The power transmitted by means of a belt depends upon

Velocity of the belt
Arc of contact between the belt and the smaller pulley
Tension under which the belt is placed on the pulleys
All of these

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Machine Design
Ball bearing type screws are found in following application

Crane
Steering mechanism
Aeroplane engines
Screw jack

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Machine Design
For circumferential joint in boilers, the type of joint used is

Butt joint with double cover plate
Lap joint with one ring overlapping the other
Any one of the above
Butt joint with single cover plate

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Machine Design
The gears are termed as medium velocity gears, if their peripheral velocity is

3-15 m/s
30-50 m/s
1-3 m/s
15-30 m/s

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Machine Design
According to Indian standard specifications, plain carbon steel designated by 40C8 contains carbon

None of these
0.20 to 0.40%
0.35 to 0.45%
0.40 to 0.60%

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