MDE 16 End of Unit Quiz

MDE 16 End Of Unit Quiz

1 / 12

Question 5:
What happens if the fluid level in a fluid coupling is too low?

A) The coupling will overheat and may fail.

C) The coupling will slip excessively, reducing power transmission.

B) The coupling will transmit too much power, causing engine overload.

D) The coupling will become too rigid and lose its damping effect.

2 / 12

Question 5:

Which of the following scenarios could lead to a false high oil level reading in the main engine sump?

D. Engine running at full speed

A. Cold engine oil

B. Overfilled oil sump

C. Improperly seated dipstick

3 / 12

Question 1:

Which of the following could cause a sudden drop in the oil level of a main engine sump?

A. Oil leakage from a defective gasket or seal

B. Clogged fuel filter

C. Overheating of the engine

D. Worn-out piston rings

4 / 12

Question:
Which of the following is an effective remedy for excessive fuel injection in marine diesel engines?

A. Adjust the fuel injection timing

D. Reduce the fuel pump delivery rate

C. Replace the fuel injectors

B. Increase the engine speed

5 / 12

Question 4:

Which of the following is an important check to perform on the main propulsion system's gearbox before departure?

C. Checking for unusual noises during operation

B. Ensuring that the gearbox is in neutral

A. Verifying that the gearbox oil level is correct

D. All of the above

6 / 12

Question 4:

A diesel engine is producing a thumping noise during operation. Which of the following is a probable cause?

A. Broken engine mounts

D. Excessive carbon build-up in the combustion chamber

B. Loose timing chain

C. Misaligned crankshaft

7 / 12

Question 1:

What could be a common cause of unstable engine speed related to the fuel system?

B) Malfunctioning fuel injectors

D) Clogged exhaust system

C) Low oil level

A) Faulty air filter

8 / 12

Question 1:
What is the primary function of a fluid coupling in a marine propulsion system?

B) To allow for smooth transmission of power by using fluid dynamics

C) To reduce fuel consumption by controlling engine speed

brake

A) To provide a direct mechanical connection between the engine and the propeller

9 / 12

Question 2:

Which of the following is a remedy for low lubricating oil pressure due to worn engine bearings?

A) Replace the oil filter

D) Add more oil

B) Clean the oil cooler

C) Rebuild or replace the engine bearings

10 / 12

Question 4:
How does a fluid coupling protect the marine engine from shock loads?

A) By providing a rigid connection between the engine and the propeller

D) By directly coupling the engine with the propeller shaft

C) By increasing the engine speed during operation

B) By absorbing and dissipating energy through the fluid, reducing stress on the engine

11 / 12

Question 1:

Which of the following is a possible cause of knocking noise in a diesel engine during operation?

D. Faulty air intake system

C. Low oil pressure

A. Incorrect fuel injection timing

B. Worn-out cylinder liner

12 / 12

Question:
Which of the following is an effective remedy for insufficient air supply in marine diesel engines?

B. Increase the fuel injection pressure

A. Clean or replace the air filters

D. Adjust the fuel injection timing

C. Reduce the engine load

Your score is