When a leak has developed in the lube oil...

Question 1 / 270705eccefa2bacbc34ba4d4794d

Question 1 of 270705eccefa2bacbc34ba4d4794d

When a leak has developed in the lube oil cooler of an operating diesel engine, which of the listed operating conditions can be expected to occur?

Back

Question 1 of 27070

When a leak has developed in the lube oil cooler of an operating diesel engine, which of the listed operating conditions can be expected to occur?

🔍 Key Concepts

• Function and location of a lube oil cooler in a diesel engine system • Direction of heat exchange and fluid flow between lube oil and coolant • What happens when a tube-type heat exchanger develops an internal leak

💭 Think About

• Think about which two fluids are separated by the lube oil cooler and which side is usually at higher pressure during normal operation. • If a leak occurs inside the cooler, which fluid is more likely to enter the other: oil into coolant, or coolant into oil? Why? • How would a leak that allows one fluid to flow into the other affect the observed lube oil level in the sump or tank?

✅ Before You Answer

• Identify whether the engine’s lube oil cooler is typically cooled by seawater directly or by fresh water jacket cooling in most modern systems. • Decide which contamination (if any) would realistically occur inside the lube oil cooler, not somewhere else in the system. • Consider whether a leak that lets coolant into the lube oil system would make the oil level appear to rise or fall on the gauge.

Question 1 of 27070

When a leak has developed in the lube oil cooler of an operating diesel engine, which of the listed operating conditions can be expected to occur?

Lube oil contaminated with saltwater

Lube oil level decreases

Lube oil contaminated with fresh water coolant

Lube oil level increases

Question 1 / 270705eccefa2bacbc34ba4d4794d

Question 1 of 270705eccefa2bacbc34ba4d4794d

When a leak has developed in the lube oil cooler of an operating diesel engine, which of the listed operating conditions can be expected to occur?

Back

Question 1 of 27070

When a leak has developed in the lube oil cooler of an operating diesel engine, which of the listed operating conditions can be expected to occur?