MDE 16 Q2

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

C) Insufficient clearance between the bearing and shaft

A) Regular lubrication maintenance

B) Use of recommended bearing materials

D) Properly sized bearing housing

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

C) Reduce engine speed and load to minimize heat generation

A) Increase engine speed to reduce load

B) Immediately stop the engine

D) Add more lubricating oil to the bearing

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

D) Increase the engine speed to circulate more oil

B) Check the lubricating oil flow and pressure

C) Add water to the cooling system

A) Continue monitoring until the temperature normalizes

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

C) Increase the amount of lubricating oil in the system

A) Ensure the cooling system is full of water

D) Clean the air filters to ensure proper airflow

B) Inspect the bearing for signs of overheating or damage

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

D) Reduced fuel injection pressure

C) Overloading the engine beyond its design capacity

A) Running the engine at lower than recommended speeds

B) Frequent engine shutdowns

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

D) Low lubricating oil temperature

A) Low oil viscosity

B) Overheating of cooling water

C) Excessive oil pressure

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

B) Under-torquing of the bearing bolts

C) Contaminated lubricating oil

D) Decreased engine load

A) Excessive cooling of the bearing

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

C) Low ambient temperature

A) Excessive lubricating oil flow

D) Oversized bearing clearance

B) Improper alignment of the bearing

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

C) Low fuel injection pressure

A) Excessive cooling water temperature

D) High exhaust gas temperature

B) Improper alignment of the bearing

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