Which among the following is provided to avoid flat spot during acceleration and delivers spurts of extra fuel in a Solex carburetor?(a) Idle port(b) Membrane pump(c) Idle adjusting screw(d) ThrottleThe question was asked during an interview.My question is based upon Petrol Engine Fuel Supply System in section Petrol Engine Fuel Supply System of Automotive Engine Design

Which among the following is provided to avoid flat spot during accele

1.	Which among the following is provided to avoid flat spot during acceleration and delivers spurts of extra fuel in a Solex carburetor?(a) Idle port(b) Membrane pump(c) Idle adjusting screw(d) ThrottleThe question was asked during an interview.My question is based upon Petrol Engine Fuel Supply System in section Petrol Engine Fuel Supply System of Automotive Engine Design
Answer» Correct option is (B) Membrane pump To elaborate: To avoid flat spot during acceleration a separate membrane pump is provided which delivers spurts of EXTRA NEEDED fuel for acceleration. Pump lever is connected to the accelerator pedal so that when the same is PRESSED, the lever moves towards left, thus pressing the membrane towards the left and forcing petrol into the main jet.

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