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What is the material of an alternator frame?(a) Cast iron(b) Brass(c) Copper(d) AluminumI 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

Answer»

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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