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The critical speeds of rotation should be different from running speed of machine.

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in Design of Electrical Machines by (687k points)
The critical speeds of rotation should be different from running speed of machine.

(a) true

(b) false

This question was posed to me in an online interview.

I would like to ask this question from Design of Shaft in chapter Aspects of Design of Mechanical Parts of Design of Electrical Machines

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Correct choice is (a) true

The explanation is: The critical speed relation is the third property of the shaft design. The critical speeds of rotation should be different from the running speed of the machine.

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