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Machine Design

Machine Design
When a load W is applied suddenly on a bar of cross-sectional area A, the stress induced in the bar will be

3W/A
W/2A
2W/A
W/A

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Machine Design
Eye bolts are used for

Transmission of power
Foundation purposes
Lifting and transportation of machines and cubicles
Absorbing shock and vibrations

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Machine Design
When bevel gears connect two shafts whose axes intersect at an angle greater than a right angle and one of the bevel gears has a pitch angle of 90°, then they are known as

Mitre gears
Internal bevel gears
Angular bevel gears
Crown bevel gears

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Machine Design
Brittle coating technique is used for

Experimental stress analysis
Protecting metal against wear and tear
Protecting metal against corrosion
Determining brittleness

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Machine Design
In a multiple V-belt drive, if one of the belts break, then

The broken belt need not to be replaced
The broken belt and the belt on either side of it, is replaced
The entire set of belts is replaced
Only the broken belt is replaced

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Machine Design
When the bearing is subjected to large fluctuations of load and heavy impacts, the bearing characteristic number should be _________ the bearing modulus.

20 times
10 times
15 times
5 times

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