MDE 5 Q2

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Question: What is meant by atomization in the context of diesel engine fuel injection?

C) The process of increasing the temperature of the fuel to enhance combustion

A) The process of cooling the fuel before it enters the combustion chamber

D) The process of filtering impurities from the fuel before injection

B) The process of breaking down fuel into fine droplets for efficient mixing with air

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Question: What are the MAIN components found in a cross section through the nozzle of a fuel injector? (Select THREE)

E) Spring

D) Fuel filter

F) Injector body

A) Nozzle tip

C) Needle valve

B) Solenoid coil

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Question: What does the term "penetration" refer to in the context of diesel engine fuel injection?

D) The speed at which fuel is injected into the combustion chamber

C) The width of the fuel spray pattern

B) The distance the fuel travels through the fuel lines

A) The depth to which fuel droplets penetrate into the combustion chamber

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