Which of the following statements is true...

Question 1 / 270705eccefa2bacbc34ba4d47a73

Question 1 of 270705eccefa2bacbc34ba4d47a73

Which of the following statements is true concerning a main diesel engine oil cooler?

Question 1 of 27070

Which of the following statements is true concerning a main diesel engine oil cooler?

🔍 Key Concepts

• Heat exchanger operation between lube oil and engine cooling water • Relative pressures of two fluids in a cooler to prevent contamination if a leak develops • Purpose and typical location of an oil temperature/flow control valve in a lubrication system

💭 Think About

• If a leak develops inside the cooler, which fluid would you rather enter the other system: oil into water, or water into oil? How does that choice affect the pressure relationship? • In normal engine operation, which fluid needs to be kept cleaner and more carefully controlled for viscosity – the lube oil or the cooling water? • Think about where a temperature- or flow-control valve is most effective: on the inlet or outlet side of the cooler, and is it really "always" in just one place on all designs?

✅ Before You Answer

• Compare oil pressure vs. cooling water pressure in a shell-and-tube cooler to prevent damage/contamination in case of a tube failure. • Check whether temperature relationships (oil vs. water) are fixed, or if they depend on operating conditions and control settings. • Question any answer that uses absolute terms like "always" unless you are sure it applies to all common designs.

Question 1 of 27070

Which of the following statements is true concerning a main diesel engine oil cooler?

The oil temperature is less than the cooling water temperature.

The oil pressure is less than the cooling water pressure.

The oil pressure is greater than the cooling water pressure.

The oil flow control valve is always installed in the oil input line.

Question 1 / 270705eccefa2bacbc34ba4d47a73

Question 1 of 270705eccefa2bacbc34ba4d47a73

Which of the following statements is true concerning a main diesel engine oil cooler?

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Question 1 of 27070

Which of the following statements is true concerning a main diesel engine oil cooler?