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Applications Questions Set 13:

Quiz Mode

What is the maximum possible turbine inlet temperature?

1300 K

1100 K

1500 K

900 K

Solution:

The anti-knock characteristics of alcohol compared to gasoline are:

equal

lower

none of the mentioned

higher

Solution:

A vapor compression refrigeration system is similar to which of the following?

Evaporator

Generator

Latent heat engine

Latent heat pump

Solution:

In a 4-stroke I.C. engine running at 1600 R.P.M., the camshaft will run at what speed?

1600 R.P.M.

3200 R.P.M.

800 R.P.M.

Independent of engine speed

Solution:

The refrigeration capacity of the condenser is not affected by which of the following?

Type of refrigerant

Amount of contact

Temperature difference

Material

Solution:

In an engine, if the work done is 522.88 kJ/kg and the swept volume is 0.738 m³/kg, find the mean effective pressure.

523.618 kN/m²

522.142 kN/m²

385.88 kN/m²

708.509 kN/m²

Solution:

When a system is in equilibrium with its surroundings, it must be in what type of equilibrium?

Pressure equilibrium

Chemical equilibrium

All of the mentioned

Temperature equilibrium

Solution:

What is the primary function of an economizer in a steam generator?

Preheating the combustion air

Preheating the input fuel

Preheating the temperature of steam

Preheating the boiler feedwater

Solution:

In a vapor compression refrigeration system, what is the result of sub-cooling the refrigerant in the condenser?

Decrease in the size of the condenser

Increase in the size of the evaporator

Increase in the size of the compressor

Decrease in COP of the system

Solution:

What does the evaporator do to the refrigerant coming from the expansion valve in terms of state?

Converts the liquid refrigerant into low-pressure vapor

Converts the liquid refrigerant into high-pressure vapor

Converts the liquid refrigerant into high-pressure liquid

Converts the liquid refrigerant into a mixture of low-pressure liquid and vapor

Applications Questions Set 13:

What is the maximum possible turbine inlet temperature?

Solution:

The anti-knock characteristics of alcohol compared to gasoline are:

Solution:

A vapor compression refrigeration system is similar to which of the following?

Solution:

In a 4-stroke I.C. engine running at 1600 R.P.M., the camshaft will run at what speed?

Solution:

The refrigeration capacity of the condenser is not affected by which of the following?

Solution:

In an engine, if the work done is 522.88 kJ/kg and the swept volume is 0.738 m³/kg, find the mean effective pressure.

Solution:

When a system is in equilibrium with its surroundings, it must be in what type of equilibrium?

Solution:

What is the primary function of an economizer in a steam generator?

Solution:

In a vapor compression refrigeration system, what is the result of sub-cooling the refrigerant in the condenser?

Solution:

What does the evaporator do to the refrigerant coming from the expansion valve in terms of state?

Solution:

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