, CHAPTER 1 REFRIGERATION
REVIEW QUESTIONS
1. What is considered the “normal” box temperature of a walk-in refrigerator?
a. 35°F to 37°F
b. 38°F to 40°F
c. –10°F
d. 0°F
//H1// Temperature Ranges of Refrigeration
2. What is considered the “normal” box temperature of a reach-in refrigerator?
a. 35°F to 37°F
b. 38°F to 40°F
c. –10°F
d. 0°F
//H1// Temperature Ranges of Refrigeration
3. What is considered the “normal” box temperature of a walk-in freezer?
a. 35°F to 37°F
b. 38°F to 40°F
c. –10°F
d. 0°F
//H1// Temperature Ranges of Refrigeration
4. What is considered the “normal” box temperature of a reach-in freezer?
a. 35°F to 37°F
b. 38°F to 40°F
c. –10°F
d. 0°F
//H1// Temperature Ranges of Refrigeration
1
Copyright 2022 Cengage. All Rights Reserved
,Chapter 1 Instructor’s Manual
5. Why is the temperature of walk-ins usually lower than the temperature of reach-ins?
a. Walk-ins are designed for long-term storage and lower temperatures.
b. Reach-ins are designed for long-term storage and lower temperatures.
c. Reach-ins are small and cannot hold low temperatures.
//H1// Temperature Ranges of Refrigeration
6. Refer to figures 1-1, 1-2, 1-3, 1-4 to answer the question. What is the pressure
throughout the high side of the system?
a. 229 psig
b. 278 psig
c. 49 psig
d. 69 psig
//H1//The Refrigeration Cycle
7. Refer to figures 1-1, 1-2, 1-3, 1-4 to answer the question. At what temperature does
the refrigerant condense?
a. 125°F
b. 115°F
c. 100°F
d. 95°F
//H1//The Refrigeration Cycle
8. Refer to figures 1-1, 1-2, 1-3, 1-4 to answer the question. What is the temperature of
the subcooled liquid in the condenser?
a. 125°F
b. 115°F
c. 95°F
d. 10°F
//H1//The Refrigeration Cycle
2
Copyright 2022 Cengage. All Rights Reserved
, Chapter 1 Instructor’s Manual
9. Refer to figures 1-1, 1-2, 1-3, 1-4 to answer the question. What is the pressure drop
across the TEV?
a. 229 psig
b. 278 psig
c. 49 psig
d. 69 psig
//H1//The Refrigeration Cycle
10. Refer to figures 1-1, 1-2, 1-3, 1-4 to answer the question. R22 refrigerant at 49 psig
boils at what temperature?
a. 75°F
b. 35°F
c. 25°F
d. 10°F
//H1//The Refrigeration Cycle
11. Refer to figures 1-1, 1-2, 1-3, 1-4 to answer the question. What is the temperature of
the superheated vapor at the outlet of the evaporator?
a. 75°F
b. 35°F
c. 25°F
d. 10°F
//H1//The Refrigeration Cycle
12. How can the latent heat in a cold suction line be transferred to higher outdoor air
temperatures?
a. Add heat to the suction vapor until it is higher than the ambient
b. Compress the suction vapor until its condensing temperature is higher than
the ambient
c. Cool the discharge vapor until it condenses just above the ambient
//H1//The Refrigeration Cycle
3
Copyright 2022 Cengage. All Rights Reserved
REVIEW QUESTIONS
1. What is considered the “normal” box temperature of a walk-in refrigerator?
a. 35°F to 37°F
b. 38°F to 40°F
c. –10°F
d. 0°F
//H1// Temperature Ranges of Refrigeration
2. What is considered the “normal” box temperature of a reach-in refrigerator?
a. 35°F to 37°F
b. 38°F to 40°F
c. –10°F
d. 0°F
//H1// Temperature Ranges of Refrigeration
3. What is considered the “normal” box temperature of a walk-in freezer?
a. 35°F to 37°F
b. 38°F to 40°F
c. –10°F
d. 0°F
//H1// Temperature Ranges of Refrigeration
4. What is considered the “normal” box temperature of a reach-in freezer?
a. 35°F to 37°F
b. 38°F to 40°F
c. –10°F
d. 0°F
//H1// Temperature Ranges of Refrigeration
1
Copyright 2022 Cengage. All Rights Reserved
,Chapter 1 Instructor’s Manual
5. Why is the temperature of walk-ins usually lower than the temperature of reach-ins?
a. Walk-ins are designed for long-term storage and lower temperatures.
b. Reach-ins are designed for long-term storage and lower temperatures.
c. Reach-ins are small and cannot hold low temperatures.
//H1// Temperature Ranges of Refrigeration
6. Refer to figures 1-1, 1-2, 1-3, 1-4 to answer the question. What is the pressure
throughout the high side of the system?
a. 229 psig
b. 278 psig
c. 49 psig
d. 69 psig
//H1//The Refrigeration Cycle
7. Refer to figures 1-1, 1-2, 1-3, 1-4 to answer the question. At what temperature does
the refrigerant condense?
a. 125°F
b. 115°F
c. 100°F
d. 95°F
//H1//The Refrigeration Cycle
8. Refer to figures 1-1, 1-2, 1-3, 1-4 to answer the question. What is the temperature of
the subcooled liquid in the condenser?
a. 125°F
b. 115°F
c. 95°F
d. 10°F
//H1//The Refrigeration Cycle
2
Copyright 2022 Cengage. All Rights Reserved
, Chapter 1 Instructor’s Manual
9. Refer to figures 1-1, 1-2, 1-3, 1-4 to answer the question. What is the pressure drop
across the TEV?
a. 229 psig
b. 278 psig
c. 49 psig
d. 69 psig
//H1//The Refrigeration Cycle
10. Refer to figures 1-1, 1-2, 1-3, 1-4 to answer the question. R22 refrigerant at 49 psig
boils at what temperature?
a. 75°F
b. 35°F
c. 25°F
d. 10°F
//H1//The Refrigeration Cycle
11. Refer to figures 1-1, 1-2, 1-3, 1-4 to answer the question. What is the temperature of
the superheated vapor at the outlet of the evaporator?
a. 75°F
b. 35°F
c. 25°F
d. 10°F
//H1//The Refrigeration Cycle
12. How can the latent heat in a cold suction line be transferred to higher outdoor air
temperatures?
a. Add heat to the suction vapor until it is higher than the ambient
b. Compress the suction vapor until its condensing temperature is higher than
the ambient
c. Cool the discharge vapor until it condenses just above the ambient
//H1//The Refrigeration Cycle
3
Copyright 2022 Cengage. All Rights Reserved
