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The modern synchronous machines make use of non-directional cold rolled steel.

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The modern synchronous machines make use of non-directional cold rolled steel.

(a) true

(b) false

I had been asked this question in my homework.

My question is based upon Construction of Hydro-Generators in section Design of Synchronous Machines of Design of Electrical Machines

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Right answer is (a) true

Explanation: The modern synchronous machines make use of the non-directional cold rolled steel which has electrical characteristics similar to that of the hot rolled steel. But the non-directional cold rolled steel has much improved mechanical characteristics.

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