Which material is used in impellers of Centrifugal supercharger?(a) Nichrome(b) Iron(c) Copper(d) Alloy steelThe question was asked in unit test.This interesting question is from Petrol Engine Fuel Supply System in division Exhaust System & Petrol Engine Fuel Supply System of Automotive Engine Design

Which material is used in impellers of Centrifugal supercharger?(a) Ni

1.	Which material is used in impellers of Centrifugal supercharger?(a) Nichrome(b) Iron(c) Copper(d) Alloy steelThe question was asked in unit test.This interesting question is from Petrol Engine Fuel Supply System in division Exhaust System & Petrol Engine Fuel Supply System of Automotive Engine Design
Answer» The correct CHOICE is (d) Alloy steel To EXPLAIN I WOULD say: The impeller runs at a very high speed, which should be ABLE to take the ACCOMPANYING stresses at such high speeds. Generally, impellers are made of duralumin, or alloy steels.

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