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Evaporator feed control pt1

Authored by Andgel Thomas

Science

12th Grade

Used 4+ times

Evaporator feed control pt1
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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the definition of superheat?

The number of degrees a vapor is above its boiling point at a specific pressure.

The number of degrees a vapor is below its boiling point at a specific pressure.

The condition where liquid refrigerant is warmer than the minimum temperature required to keep it from boiling.

The condition where liquid refrigerant is colder than the minimum temperature required to keep it from boiling.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the definition of subcooling?

The condition where liquid refrigerant is warmer than the minimum temperature required to keep it from boiling.

The number of degrees a vapor is below its boiling point at a specific pressure.

The condition where liquid refrigerant is colder than the minimum temperature required to keep it from boiling.

The number of degrees a vapor is above its boiling point at a specific pressure.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the saturation temperature of the refrigerant?

The temperature at which the refrigerant changes from a solid state to liquid.

The temperature at which the refrigerant changes from a liquid state to solid.

The temperature at which the refrigerant changes from a vapor state to liquid.

The temperature at which the refrigerant changes from a liquid state to vapor.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the range of box temperatures for high temperature refrigeration?

47°F to 60°F

28°F to 40°F

60°F to 70°F

-20°F to 0°F

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of an evaporator feed control?

To increase the pressure of liquid refrigerant.

To heat the evaporator.

To reduce the pressure of liquid refrigerant.

To cool the condenser.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is not a type of evaporator feed control?

Hand

Automatic

Thermostatic

Expansion

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the function of an evaporator feed control as the refrigerant pressure reduces?

The refrigerant absorbs heat from the evaporator.

The evaporator absorbs heat from the refrigerant.

The refrigerant cools the condenser.

The evaporator cools the compressor.

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