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Machine Design

Machine Design
The groove angle of pulleys for V-belt is

300 to 320
More than 400
340 to 360
420 to 450

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

0.1 micron
10 microns
0.01 micron
1 micron

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Machine Design
Multiple threads are used to secure

High load lifting capacity
High efficiency
Low efficiency
High mechanical advantage

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Machine Design
In standard taper roller bearings, the angle of taper of outer raceway is

25°
8°
5°
15°

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Machine Design
The lower deviation is the algebraic difference between the

Maximum limit and the basic size
Actual size and the corresponding basic size
None of these
Minimum limit and the basic size

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Machine Design
If the size of a standard specimen for a fatigue testing machine is increased, the endurance limit for the material will

None of these
Have same value as that of standard specimen
Decrease
Increase

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