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Machine Design

Machine Design
The usual clearance provided in hydrodynamic bearing per mm of diameter of shaft is

0.01 micron
1 micron
0.1 micron
10 microns

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Machine Design
In a marine flange coupling, the thickness of flange is taken as

d/4
3d/4
d/2
d/3

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Machine Design
Which of the following is an anti-friction bearing?

Journal bearing
Pedestal bearing
Collar bearing
Needle bearing

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Machine Design
In Vickers hardness testing, the pyramid indentor apex is

122°
40°
136°
152°

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Machine Design
The bending stress in a curved beam is

Zero at the centroidal axis
Maximum at the neutral axis
None of these
Zero at the point other than centroidal axis

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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

Ensure proper alignment
Reduce vibration
Reduce slip
Ensure uniform loading

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