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In practice what is the fuel level in the float chamber that is maintained in millimeter below the nozzle?(a) 10(b) 5(c) 20(d) 15This question was addressed to me in semester exam.My doubt stems from Petrol Engine Fuel Supply System topic in division Petrol Engine Fuel Supply System of Automotive Engine Design

Answer»

The correct option is (b) 5

To explain: The fuel LEVEL in the FLOAT chamber is maintained about 5mm below the NOZZLE outlet. A small vent in the float chamber keeps the pressure inside atmospheric and in modern practice is preferred to vent the float chamber to the AIR INTAKE of the carburetor.



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