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For large DC machines, the yoke is usually made of which material?(a) Cast steel(b) Cast iron(c) Iron(d) Cast steel or cast ironThe question was posed to me in an online interview.The above asked question is from DC Motors Characteristics in division Characteristics of DC & AC Motors of Electric Drives

Answer»

The correct choice is (a) CAST steel

Easy EXPLANATION: Yoke in DC MACHINES is made up of cast steel. Yoke PROVIDES structural support and mechanical strength to the machine. It HELPS in carrying the flux from the North pole to South pole.



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