MDE Unit 16 engine faults Quiz

3

MDE 16 Q1

1 / 21

Question 5:

If a diesel engine is overheating due to excessive engine load, what should be done to remedy the situation?

2 / 21

Question 2:

If a diesel engine is overheating due to a malfunctioning thermostat, what is the appropriate remedy?

3 / 21

Question 2:

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

4 / 21

Question 1:

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

5 / 21

Question 3:

What is a potential cause of unstable engine speed related to the engine's electronic control system?

6 / 21

Question 7:

How can a leaking oil line or gasket contribute to low lubricating oil pressure, and what is the appropriate solution?

7 / 21

Question 5:

If unstable engine speed is caused by a problem with the turbocharger, what should be checked?

8 / 21

Question 4:

What should be checked if low lubricating oil pressure is suspected due to oil level issues?

9 / 21

Question 5:

If low lubricating oil pressure is caused by excessive oil viscosity, what is the recommended action?

10 / 21

Question 2:

If a diesel engine is experiencing unstable speed due to air intake issues, what is the most likely cause?

11 / 21

Question 6:

What could be a mechanical cause of unstable engine speed, and how can it be fixed?

12 / 21

Question 6:

What could be a consequence of a blocked or restricted air intake on engine temperature, and how can it be fixed?

13 / 21

Question 1:

What is a common cause of low lubricating oil pressure in a diesel engine?

14 / 21

Question 3:

How can a blocked oil filter lead to low lubricating oil pressure, and what is the appropriate remedy?

15 / 21

Question 7:

If unstable engine speed is caused by a malfunctioning governor, what is the recommended solution?

16 / 21

Question 6:

What could be the effect of a malfunctioning oil pressure relief valve on oil pressure, and how should it be addressed?

17 / 21

Question 7:

If an engine is overheating due to a failing radiator fan, what should be the corrective action?

18 / 21

Question 3:

What action should be taken if low coolant levels are causing engine overheating?

19 / 21

Question 4:

How can issues with the fuel supply system lead to unstable engine speed, and what is the appropriate remedy?

20 / 21

Question 4:

How can a malfunctioning water pump lead to overheating, and what is the recommended solution?

21 / 21

Question 1:

What is a common cause of diesel engine overheating related to the cooling system?

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3

MDE 16 Q2

1 / 9

Question 2: What could be a reason for high bearing temperatures in a diesel engine due to issues with the lubricating oil?

2 / 9

Question 4: After stopping the engine due to high bearing temperature, what is a critical check that should be performed before restarting?

3 / 9

Question 4: A possible cause of high bearing temperatures due to operational issues could be:

4 / 9

Question 1: What is the first action that should be taken if a high bearing temperature is detected in a diesel engine during operation?

5 / 9

Question 1: Which of the following is a potential cause of high bearing temperatures in a diesel engine?

6 / 9

Question 3: High bearing temperatures in a diesel engine can result from:

7 / 9

Question 5: Which of the following could cause high bearing temperatures due to maintenance-related issues?

8 / 9

Question 3: Which of the following could be a possible cause of high bearing temperature in a diesel engine?

9 / 9

Question 2: If high bearing temperature persists after reducing engine load, what should be the next step?

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2

MDE 16 Q3

1 / 5

Question 1: What is the first step to take upon discovering a leaking cylinder air start valve while the engine is running?

2 / 5

Question: How can a leaking cylinder air start valve be detected while the engine is running?

3 / 5

Question 3: If debris is found to be the cause of the air start valve leak, what is the recommended procedure?

4 / 5

Question 2: After shutting down the engine due to a leaking air start valve, what should be done next?

5 / 5

Question 4: What should be done if the air start valve continues to leak after cleaning and inspection?

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2

MDE 16 Q4

1 / 9

Question 1:
Which of the following is a method to minimize the risk of abnormal turbocharger vibration due to unbalanced rotors?

2 / 9

Question 1:
What is a potential cause of abnormal turbocharger vibration at a steady speed in a diesel engine?

3 / 9

Question 4:
What might cause abnormal turbocharger vibration at a steady speed in a diesel engine?

4 / 9

Question 3:
How can the likelihood of abnormal turbocharger vibration due to bearing wear be minimized?

5 / 9

Question 3:
Abnormal turbocharger vibration while operating at a steady speed could be caused by:

6 / 9

Question 2:
Which of the following could lead to abnormal turbocharger vibration in a diesel engine operating at a steady speed?

7 / 9

Question 4:
What is the most effective way to reduce the risk of abnormal turbocharger vibration caused by misalignment during assembly?

8 / 9

Question 2:
What maintenance practice can help prevent abnormal turbocharger vibration caused by fouling?

9 / 9

Question 1:
Which of the following is an effective way to minimize the risk of abnormal turbocharger vibration in a diesel engine?

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4

MDE 16 Q5

1 / 5

Question:
The air start pipework on a diesel engine attached to the cylinder head is becoming extremely hot. What is the most probable cause?

2 / 5

Question:
How can the problem of excessively hot air start pipework on a diesel engine be minimized?

3 / 5

Question 1:
What is a potential consequence of the air start pipework becoming extremely hot?

4 / 5

Question 2:
What immediate action should be taken if the air start pipework is becoming extremely hot?

5 / 5

Question 3:
Which safety precaution should be taken when dealing with hot air start pipework?

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4

MDE 16 Q6

1 / 9

Question:
How can combustion defects in a diesel engine be diagnosed?

2 / 9

Question:
Which of the following are possible causes for white smoke in marine diesel engines? (Select TWO)

3 / 9

Question:
Which of the following is an effective remedy for the burning of lubricating oil in marine diesel engines?

4 / 9

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

5 / 9

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

6 / 9

Question 3:
Which safety precaution should be taken when dealing with hot air start pipework?

7 / 9

Which of the following are possible causes for black smoke in marine diesel engines? (Select TWO)

8 / 9

Question:
What is a common remedy for improving cold starting of marine diesel engines?

9 / 9

Which of the following are possible causes for blue smoke in marine diesel engines? (Select TWO)

 

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4

MDE 16 Q7

1 / 3

Question 2:

What could be a likely cause of a rattling noise coming from the top end of a diesel engine?

2 / 3

Question 1:

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

3 / 3

Question 3:

Which of the following could cause a whining noise in a diesel engine during operation?

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2

MDE 16 Q8 Q9

1 / 5

Question 3:

Which of the following could cause a whining noise in a diesel engine during operation?

2 / 5

Question 4:

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

3 / 5

Question 2:

What might cause the oil level in a main engine sump to rise unexpectedly?

4 / 5

Question:

Which of the following actions can help avoid spurious sump level alarms in a marine diesel engine?

5 / 5

Question 1:

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

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3

MDE 16 Q10

1 / 8

Question 5:

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

2 / 8

Question 4:

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

3 / 8

Question 1:

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

4 / 8

Question 4:

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

5 / 8

Question 5:

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

6 / 8

Question 2:

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

7 / 8

Question 3:

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

8 / 8

Question 5:

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

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