MDE 14 Q1

1 / 6

What is the primary function of the hydraulic oil start system in a diesel engine?

A) To assist with fuel injection timing

B) To provide additional cooling to the engine

C) To initiate the engine’s start-up by engaging the starting mechanism

D) To enhance the lubrication of engine components

2 / 6

What role does the hydraulic accumulator play in the hydraulic oil start system of a diesel engine?

D) It filters impurities from the hydraulic oil

C) It maintains hydraulic pressure for starting the engine

A) It stores excess hydraulic fluid for future use

B) It regulates the fuel supply to the engine

3 / 6

Which safety interlock prevents the hydraulic oil start system from operating if certain conditions are not met?

A) Hydraulic pressure switch

B) Battery voltage sensor

D) Starting motor relay

C) Engine temperature sensor

4 / 6

Which of the following components is typically included in a diesel engine hydraulic oil start system?

A) Hydraulic pump

B) Fuel filter

D) Turbocharger

C) Air compressor

5 / 6

In a hydraulic oil start system, what is the purpose of the hydraulic control valve?

C) To monitor the temperature of the hydraulic oil

D) To provide additional cooling to the hydraulic system

B) To filter impurities from the hydraulic fluid

A) To regulate the flow of hydraulic fluid to the starting motor

6 / 6

Which interlock is commonly found in a diesel engine hydraulic oil start system to ensure safe operation?

D) Fuel pressure regulator

B) Hydraulic fluid level sensor

A) Engine oil pressure switch

C) Coolant temperature gauge

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