Aux 1 Unit 11 Q4

1 / 10

What role could bearing wear or damage play in causing an intermediate shaft bearing to run hot?

C) It improves the bearing's ability to dissipate heat.

A) It reduces the bearing's operating temperature.

D) It has no effect on the bearing's temperature.

B) It increases friction due to damaged surfaces, leading to higher temperatures.

2 / 10

What is the first action to take if an intermediate shaft bearing is running hot while at sea?

B) Reduce the engine load and speed to decrease the stress on the bearing

A) Increase the vessel's speed

C) Stop the engine immediately

D) Ignore the issue and continue as normal

3 / 10

How might contamination in the bearing lubricant contribute to the bearing running hot?

A) It improves lubrication quality.

C) It decreases the friction between bearing surfaces.

D) It has no impact on bearing temperature.

B) It reduces lubrication efficiency, leading to increased friction and heat generation.

4 / 10

If the bearing condition worsens and temperatures rise to a critical level, what should be done?

C) Increase engine speed to reach the port faster

A) Continue to the port at the same speed

D) Reduce lubrication to cool the bearing

B) Stop the engine immediately and assess the situation to prevent catastrophic failure

5 / 10

How could shaft misalignment contribute to an intermediate shaft bearing running hot?

B) It causes uneven load distribution on the bearing, increasing friction and heat generation.

D) It decreases the vessel's fuel consumption.

A) It reduces the load on the bearing.

C) It improves the efficiency of the bearing.

6 / 10

If the bearing temperature stabilizes but remains higher than normal, what should be the next course of action?

B) Maintain reduced speed and engine load, and proceed to the nearest port for further investigation

C) Stop the engine and wait for the temperature to drop

D) Return to full speed immediately

A) Increase the engine speed gradually

7 / 10

What precautionary measure should be taken during the voyage to port if the bearing is running hot?

B) Avoid checking the engine room

C) Ignore the issue until reaching port

D) Increase the vessel's draft

A) Increase the frequency of engine checks to ensure that the bearing condition does not deteriorate

8 / 10

What is one possible cause of an intermediate shaft bearing running hot?

B) Insufficient lubrication, leading to increased friction and heat generation

A) Excessive lubrication

C) Incorrect shaft alignment

D) Reduced vessel speed

9 / 10

What effect could excessive bearing load have on the bearing temperature?

B) It increases the bearing temperature due to higher pressure and friction between the bearing surfaces.

C) It has no effect on the bearing temperature.

D) It cools the bearing through increased lubrication flow.

A) It reduces the bearing temperature.

10 / 10

What should be monitored continuously after taking initial action to reduce the bearing temperature?

B) The bearing temperature, noise levels, and vibration to detect any signs of worsening conditions

D) The fuel consumption rate

C) The vessel's speed

A) The color of the bearing housing

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