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By adjusting which of the following we can vary the opening fuel line pressure?

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in Automotive Engine Design by (137k points)
By adjusting which of the following we can vary  the opening fuel line pressure?

(a) Spring

(b) Rocker arms

(c) Rotor

(d) Motor

I had been asked this question by my school teacher while I was bunking the class.

Question is taken from Diesel Engine Fuel Supply System in division Diesel Engine Fuel Supply System of Automotive Engine Design

1 Answer

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Best answer
The correct choice is (a) Spring

The explanation is: The actual opening fuel- line pressure can be varied by adjusting the initial degree of spring compression. The fuel spray continues till the delivery from the injection pump is exhausted when the spring pressure again suddenly closes the nozzle valve back on its own.

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