MDE 16 Q10

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Question 5:

What might be the cause of a high-pitched squealing noise in a diesel engine?

C. Clogged air filter

D. Low coolant level

B. Worn-out valve guides

A. Loose or worn-out fan belt

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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

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Question 4:

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

C. Misaligned crankshaft

D. Excessive carbon build-up in the combustion chamber

A. Broken engine mounts

B. Loose timing chain

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Question 5:

Before leaving port, why is it important to conduct a test run of the main propulsion engine?

A. To burn off excess lubricating oil

D. To avoid using the auxiliary engine for longer periods

C. To increase the engine's operating temperature to the maximum

B. To ensure that all systems are operating correctly and respond as expected

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Question 2:

Before departure, which of the following actions should be taken to ensure the correct operation of the main engine cooling water system?

D. All of the above

C. Check for any leaks in the cooling water system

B. Verify the correct operation of the cooling water pumps

A. Inspect the cooling water level in the expansion tank

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Question 3:

Which of the following is a potential reason for fluctuating oil levels in the main engine sump during operation?

A. Excessive blow-by gases

C. Variations in engine load

B. Oil pump malfunction

D. Worn-out main bearings

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Question 5:

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

B. Overfilled oil sump

D. Engine running at full speed

A. Cold engine oil

C. Improperly seated dipstick

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Question 1:

Which of the following checks should be performed on the main propulsion system's lubricating oil system before going to sea?

A. Ensure that the lubricating oil is at the correct temperature

C. Verify that the lubricating oil level is within the acceptable range

B. Confirm that the lubricating oil filters are clean and operational

D. All of the above

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