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Machine Design

Machine Design
Rankine's theory is used for

Brittle materials
Plastic materials
Ductile materials
Elastic materials

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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

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

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Machine Design
Screws used for power transmission should have

High efficiency
Low efficiency
Strong teeth
Very fine threads

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Machine Design
The wire ropes make contact at

Sides of groove of the pulley
Sides and bottom of groove of the pulley
Anywhere in the groove of the pulley
Bottom of groove of the pulley

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Machine Design
According to Indian standards, total numbers of tolerance grades are

8
18
12
20

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Machine Design
The stress in the threaded part of the bolt will be __________ as compared to the shank.

Lower
Same
None of these
Higher

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