Marine Technician Fuel & Cooling Systems

Question 1

What is the purpose of the fuel filter in a marine engine?

Accepted Answer

Remove contaminants from fuel

Answer

Increase engine power

Answer

Measure fuel pressure

Answer

Cool the engine

Question 2

Which component maintains proper fuel pressure in the system?

Accepted Answer

Fuel pressure regulator

Answer

Fuel pump

Answer

Fuel rail

Answer

Fuel injector

Question 3

What is the role of a marine heat exchanger?

Accepted Answer

Transfer heat from coolant to seawater

Answer

Burn excess fuel

Answer

Cool exhaust gases

Answer

Pump oil

Question 4

Why is raw water used in marine engine cooling systems?

Accepted Answer

To cool the engine

Answer

To increase engine noise

Answer

To clean the hull

Answer

To lubricate moving parts

Question 5

Which part moves fuel from the tank to the engine?

Accepted Answer

Fuel pump

Answer

Fuel injector

Answer

Fuel filter

Answer

Throttle body

Question 6

What problem can arise from a faulty marine thermostat?

Accepted Answer

Engine overheating or underheating

Answer

Increased fuel pressure

Answer

Unstable ignition timing

Answer

Battery drain