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Machine Design

Machine Design
The stretching in a belt can be controlled by __________ the stress in the belt.

Both A and B
Reducing
None of these
Increasing

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Machine Design
In designing a flange coupling, the pitch circle diameter of bolts is taken as (where d = Diameter of the shaft)

3 d
4 d
2 d
5 d

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Machine Design
The diameter of knuckle pin in a knuckle joint is usually taken as (where d = Diameter of the rod)

d
0.8 d
1.2 d
0.5 d

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Machine Design
Surface endurance limit of gear material is dependent upon its

Elastic strength
Toughness
Brinell hardness number
Yield strength

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Machine Design
A shaft coupling should

Transmit full power of the shaft
All of these
Hold the shafts in perfect alignment
Be easy to connect or disconnect

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

2.5 d
1.2 d
1.6 d
2 d

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