Which of the following helps in the relief of the excess pressure which is built up?(a) Pull rod(b) Diaphragm return spring(c) Camshaft(d) Suction valveI got this question in an online quiz.My question is from Petrol Engine Fuel Supply System in section Petrol Engine Fuel Supply System of Automotive Engine Design

Which of the following helps in the relief of the excess pressure whic

1.	Which of the following helps in the relief of the excess pressure which is built up?(a) Pull rod(b) Diaphragm return spring(c) Camshaft(d) Suction valveI got this question in an online quiz.My question is from Petrol Engine Fuel Supply System in section Petrol Engine Fuel Supply System of Automotive Engine Design
Answer» Right option is (b) Diaphragm return spring Explanation: The pump will BUILD up excessive PRESSURE which may DAMAGE the pump itself. This is taken care of by the diaphragm return spring which remains partially or fully compressed DEPENDING UPON the line pressure.

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