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Machine Design

Machine Design
According to Indian standards, total numbers of fundamental deviations are

20
10
25
15

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Machine Design
According to Indian standard specifications, plain carbon steel designated by 40C8 contains carbon

0.35 to 0.45%
None of these
0.20 to 0.40%
0.40 to 0.60%

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Machine Design
A pressure vessel is said to be a thick shell, if the ratio of wall thickness to its diameter is

None of these
Greater than 1/10
Equal to 1/10
Less than 1/10

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Machine Design
The load cup of a screw jack is made separate from the head of the spindle to

Enhance the load carrying capacity of the jack
Reduce the effort needed for lifting the working load
Prevent the rotation of load being lifted
Reduce the value of frictional torque

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Machine Design
The taper on a rectangular sunk key is

1 in 16
1 in 48
1 in 100
1 in 32

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Machine Design
A sliding bearing in which although lubricant is present, the working surfaces __________ contact each other at least part of the time, is called boundary lubricated bearing.

Partially
None of these
Fully
Either A or B

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