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Retardation test on DC shunt motor is used for finding _______

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Retardation test on DC shunt motor is used for finding _______

(a) stray losses

(b) copper losses

(c) friction losses

(d) iron losses

The question was posed to me in a job interview.

My doubt stems from Efficiency and Testing of DC Machines in portion DC Machines of Electrical Machines

1 Answer

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Best answer
Right option is (a) stray losses

Explanation: Retardation test is used for finding the stray losses.

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