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Machine Design

Machine Design
The standard length of the shaft is

5 m
All of these
6 m
7 m

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Machine Design
In the case of an elastic bar fixed at upper end and loaded by a falling weight at lower end, the shock load produced can be decreased by

Would depend upon other factors
Increasing the cross-section area of bar
Remain unaffected with cross-section area
Decreasing the cross-section area of bar

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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
15 times
10 times
5 times

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Machine Design
Guest's theory is used for

Brittle materials
Ductile materials
Elastic materials
Plastic materials

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

8
20
12
18

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Machine Design
In a turnbuckle, if one of the rods has left hand threads, then the other rod will have

Multiple threads
Left hand threads
Right hand threads
Pointed threads

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