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Machine Design

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

Parallel
None of these
Perpendicular
Both A and B

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

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

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Machine Design
The groove angle of the pulley for rope drive is usually

60°
20°
45°
35°

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Machine Design
When the screw in a mechanical screw jack rotates, the load kept on the top of it moves

None of these
Axially upwards
Axially upwards or downwards
Axially downwards

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Machine Design
The belt slip occurs due to

Heavy load
Driving pulley too small
Any one of the above
Loose belt

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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 d
1.75 d
1.5 d

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