MDE 5 Q8

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Question: How does a scroll type fuel pump meter fuel for high and low loads?

A) By adjusting the speed of the scroll mechanism

C) By varying the displacement of the scroll mechanism

B) By changing the position of the camshaft

D) By altering the temperature of the fuel

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Question 3: What defect can lead to erratic engine operation and knocking?

A) Incorrect spray pattern

B) Overheating of the fuel pump

D) Damaged air filter

C) Faulty engine thermostat

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Question 2: Which defect in a fuel injector can cause fuel to leak into the combustion chamber continuously?

B) Worn nozzle tip

A) Faulty solenoid

D) Misaligned injector nozzle

C) Leaking nozzle seals

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Question 5: What is a possible defect in fuel injectors that may result in a rough engine idle and excessive exhaust smoke?

D) Low oil pressure

A) Damaged fuel pump

B) Leaking nozzle tip

C) Faulty ignition coil

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Question 1: What is a common defect in fuel injectors that results in poor engine performance and increased exhaust smoke?

D) Faulty glow plugs

A) Clogged nozzle orifices

C) Worn piston rings

B) Leaking fuel lines

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Question 4: Which defect in a fuel injector can cause reduced fuel efficiency and increased fuel consumption?

C) Faulty turbocharger

A) Blocked fuel filter

B) Poor injector atomization

D) Worn valve guides

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