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Which material is used for the valves of the A.C mechanical pump?

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in Automotive Engine Design by (137k points)
Which material is used for the valves of the A.C mechanical pump?

(a) Cast iron

(b) Plastic

(c) Bakelite

(d) Paper

I got this question in an online quiz.

This interesting question is from Petrol Engine Fuel Supply System topic in section Petrol Engine Fuel Supply System of Automotive Engine Design

1 Answer

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Right answer is (c) Bakelite

To explain I would say: The A.C pump’s valves are made up of Bakelite, which being lighter keeps the inertia stresses minimum and they are resistant to heat, scratches, and destructive solvents which makes it be most commonly used.

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