Aux 1 Unit 11 Q4

1 / 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

D) Ignore the issue and continue as normal

C) Stop the engine immediately

A) Increase the vessel's speed

2 / 10

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

C) It has no effect on the bearing temperature.

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

A) It reduces the bearing temperature.

D) It cools the bearing through increased lubrication flow.

3 / 10

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

C) Incorrect shaft alignment

A) Excessive lubrication

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

D) Reduced vessel speed

4 / 10

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

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

A) Continue to the port at the same speed

D) Reduce lubrication to cool the bearing

C) Increase engine speed to reach the port faster

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?

A) Increase the engine speed gradually

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

D) Return to full speed immediately

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

7 / 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.

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

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

A) It reduces the bearing's operating temperature.

8 / 10

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

D) It has no impact on bearing temperature.

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

C) It decreases the friction between bearing surfaces.

A) It improves lubrication quality.

9 / 10

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

C) The vessel's speed

A) The color of the bearing housing

D) The fuel consumption rate

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

10 / 10

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

B) Avoid checking the engine room

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

D) Increase the vessel's draft

C) Ignore the issue until reaching port

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