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What is the material of an alternator frame?

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in Automobile Engineering by (80.5k points)
What is the material of an alternator frame?

(a) Cast iron

(b) Brass

(c) Copper

(d) Aluminum

I had been asked this question in class test.

My doubt is from Charging System in division Nonconventional Engines, Conventional Energy Sources & Cooling System of Automobile Engineering

1 Answer

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The correct choice is (d) Aluminum

Easiest explanation: An alternator frame is made of aluminum. Aluminum is lightweight. It is no-magnetic. It has a higher thermal conductivity so as to keep the alternator assembly cool by more efficient transfer of heat.

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