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Machine Design

Machine Design
If a spring is cut down into two springs, the stiffness of cut springs will be

Same
Half
Double
None of these

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Machine Design
Antifriction bearings are

Hydrodynamic bearings
Thin lubricated bearings
Sleeve bearings
None of these

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Machine Design
The anti-friction bearings

All of these
Can carry both radial and thrust loads
Have high initial cost
Have low starting and low running friction at moderate speeds

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

Less
Same
More
None of these

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Machine Design
Basic shaft is one

Whose lower as well as upper deviations are zero
Whose upper deviation is zero
Does not exist
Whose lower deviation is zero

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Machine Design
In a multiple V-belt drive, when a single belt is damaged, it is preferable to change the complete set in order to

Reduce vibration
Ensure uniform loading
Ensure proper alignment
Reduce slip

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