IC Engine Questions and Answers – Fuel Injector

This set of IC Engines Multiple Choice Questions & Answers (MCQs) focuses on “Fuel Injector”.

1. Quick and complete combustion is ensured by a well designed _____________
a) governor
b) fuel injector
c) throttle
d) none of the mentioned
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2. By atomizing the fuel into very fine droplets, it _____________ the surface area of the fuel droplets.
a) increases
b) decreases
c) unpredictable
d) none of the mentioned
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3. _____________ is done by forcing the fuel through a small orifice under high pressure.
a) Vacuum
b) Atomization
c) Carburation
d) None of the mentioned
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4. The injector assembly consists of ___________
a) a needle valve
b) a compression spring
c) a nozzle and an injector body
d) all of the mentioned
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5. When the fuel is supplied by the injection pump, it exerts sufficient force against the spring to lift the ___________
a) nozzle valve
b) throttle valve
c) mechanical valve
d) none of the mentioned
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6. _____________ is sprayed into the combustion chamber in a finely atomized particles.
a) Air
b) Fuel
c) Water
d) None of the mentioned
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7. The spring tension and the valve opening pressure is controlled by adjusting the screw provided at the ___________
a) top
b) bottom
c) center
d) none of the mentioned
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8. For proper lubrication between the nozzle valve and its guide a small quantity of fuel is allowed to leak through the clearance.
a) True
b) False
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Sanfoundry Global Education & Learning Series – IC Engine.

To practice all areas of IC Engine, here is complete set of 1000+ Multiple Choice Questions and Answers.