Which of the following problems can cause...

Question 1 / 270705eccefa2bacbc34ba4d47a4f

Question 1 of 270705eccefa2bacbc34ba4d47a4f

Which of the following problems can cause fluctuating pressures in the closed cooling system of a main propulsion diesel engine?

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Question 1 of 27070

Which of the following problems can cause fluctuating pressures in the closed cooling system of a main propulsion diesel engine?

🔍 Key Concepts

• Behavior of pressure in a closed cooling system when flow is steady vs disrupted • How pump cavitation affects flow and pressure in a liquid system • Which faults would cause a steady high/low pressure rather than a fluctuating one

💭 Think About

• For each choice, ask: would this fault make pressure change back and forth over time, or just move to a new stable value? • Think about what happens to system pressure if air/steam bubbles form and collapse repeatedly in a pump or line. • Consider whether an open vent or a restriction would cause continuous loss or constant backpressure, versus rapid variations on the gauge.

✅ Before You Answer

• Identify which option directly affects the pump’s ability to deliver smooth, continuous flow. • Decide which issues are more likely to cause constant high or low pressure, not fluctuating pressure. • Consider how an open vent in a closed system would affect overall pressure level and whether it would fluctuate or stay low.

Question 1 of 27070

Which of the following problems can cause fluctuating pressures in the closed cooling system of a main propulsion diesel engine?

Defective temperature controls in the system.

Cavitation in the cooling water pump.

Opened vent in the cooling system.

Restricted water passages in the engine.

Question 1 / 270705eccefa2bacbc34ba4d47a4f

Question 1 of 270705eccefa2bacbc34ba4d47a4f

Which of the following problems can cause fluctuating pressures in the closed cooling system of a main propulsion diesel engine?

Back

Question 1 of 27070

Which of the following problems can cause fluctuating pressures in the closed cooling system of a main propulsion diesel engine?