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Machine Design

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

None of these
Reducing
Increasing
Both A and B

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Machine Design
In order to avoid tearing of the plate at edge, the distance from the center line of the rivet hole to the nearest edge of the plate in terms of dia. of rivet d should be equal to

1.25 d
1.5 d
1 d
1.75 d

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Machine Design
The material commonly used for machine tool bodies is

Aluminium
Cast iron
Mild steel
Brass

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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)

2 d
5 d
4 d
3 d

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Machine Design
In radial bearings, the load acts __________ to the axis of rotation.

Perpendicular
None of these
Parallel
Both A and B

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Machine Design
If the tearing efficiency of a riveted joint is 75%, then the ratio of diameter of rivet to the pitch is equal to

0.6
0.25
0.5
0.2

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