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Machine Design

Machine Design
In most machine members, the damping capacity of the material should be

High
Zero
Low
Could be anything

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Machine Design
The ball bearings are provided with a cage

To prevent the lubricant from flowing out
To facilitate slipping of balls
To reduce friction
To maintain the balls at a fixed distance apart

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Machine Design
For a shaft diameter of 200 mm, the number of bolts in a marine flange coupling should be

6
8
10
4

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Machine Design
A V-belt designated as B 4430 LP has

4430 mm as diameter of small pulley
4430 mm as nominal pitch length
4430 mm as centre distance between pulleys
4430 mm as diameter of large pulley

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Machine Design
The bearings of medium series have capacity __________ over the light series.

40 to 50%
20 to 30%
10 to 20%
30 to 40%

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Machine Design
For crank shaft bearings, the ratio of the length of the journal to its diameter is_________.

None of these
Greater than unity
Less than unity
Equal to 1

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