Questions from Thermal Fluid Science


Q: How does the ideal Diesel cycle differ from the ideal Otto cycle

How does the ideal Diesel cycle differ from the ideal Otto cycle?

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Q: What is vapor pressure? How is it related to saturation pressure

What is vapor pressure? How is it related to saturation pressure?

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Q: What is the net force acting on a car cruising at a

What is the net force acting on a car cruising at a constant velocity of 70 km/h (a) on a level road and (b) on an uphill road?

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Q: The maximum safe air pressure of a tire is typically written on

The maximum safe air pressure of a tire is typically written on the tire itself. The label on a tire indicates that the maximum pressure is 35 psi (gage). Express this maximum pressure in kPa.

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Q: What is the cutoff ratio? How does it affect the thermal

What is the cutoff ratio? How does it affect the thermal efficiency of a Diesel cycle?

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Q: Does water boil at higher temperatures at higher pressures? Explain.

Does water boil at higher temperatures at higher pressures? Explain.

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Q: For a specified compression ratio, is a diesel or gasoline engine

For a specified compression ratio, is a diesel or gasoline engine more efficient?

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Q: If the pressure of a substance is increased during a boiling process

If the pressure of a substance is increased during a boiling process, will the temperature also increase or will it remain constant? Why?

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Q: Do diesel or gasoline engines operate at higher compression ratios? Why

Do diesel or gasoline engines operate at higher compression ratios? Why?

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Q: An ideal Diesel cycle has a compression ratio of 18 and a

An ideal Diesel cycle has a compression ratio of 18 and a cutoff ratio of 1.5. Determine the maximum air temperature and the rate of heat addition to this cycle when it produces 200 hp of power; the c...

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