NATE EXAM - AIR CONDITIONING AND HEAT PUMPS
QUESTIONS WITH ALL CORRECT & VERIFIED
ANSWERS
1. Which of the following factors affects a a. 10%
customer's level of comfort? b. 15%
a. Air movement
b. Humidity
c. Temperature
d. All of the above
2. A cooling load calculation estimates the
sensible heat gain of a structure. The
maximum sensible capacity of a cooling-only
system should be within % of this
calculated value.
a. ±10%
b. +10%
c. +15%
d. +30%
3. The maximum sensible cooling capacity of a
heat pump should be within % of the
calculated sensible heat gain of a structure
with a large heating load.
a. ±10%
b. +15%
c. -25%
d. +25%
4. The combined output of a heat pump and its
auxiliary heat should not exceed the calculated
heat loss of a home by more than %.
, NATE EXAM - AIR CONDITIONING AND HEAT PUMPS
QUESTIONS WITH ALL CORRECT & VERIFIED
d (All ofANSWERS
the above: air movement, humidity, tem- perature)
c (+15%)
d (+25%)
b (15%)
, NATE EXAM - AIR CONDITIONING AND HEAT PUMPS
QUESTIONS WITH ALL CORRECT & VERIFIED
ANSWERS
c. 20%
d. 25%
5. What amount of auxiliary electric heat is needed when b (3.2 kWh)
the output of a heat pump on a design day
equals 18,800 Btuh and the heat loss of a
home is 29,700 Btuh?
a. 2.1 kWh
b. 3.2 kWh
c. 5.0 kWh
d. 10.9 kWh
Note: 3,413 Btu/kW
6. The three processes that transfer heat energy are con- b (radiation)
duction, convection, and .
a. concentration
b. radiation
c. refraction
d. static pressure
7. Heat transfer that occurs when substances of different b
(conduction)
temperatures are in contact with each other is called
.
a. concentration
b. conduction
c. convection
d. radiation
, NATE EXAM - AIR CONDITIONING AND HEAT PUMPS
QUESTIONS WITH ALL CORRECT & VERIFIED
8. ANSWERS
QUESTIONS WITH ALL CORRECT & VERIFIED
ANSWERS
1. Which of the following factors affects a a. 10%
customer's level of comfort? b. 15%
a. Air movement
b. Humidity
c. Temperature
d. All of the above
2. A cooling load calculation estimates the
sensible heat gain of a structure. The
maximum sensible capacity of a cooling-only
system should be within % of this
calculated value.
a. ±10%
b. +10%
c. +15%
d. +30%
3. The maximum sensible cooling capacity of a
heat pump should be within % of the
calculated sensible heat gain of a structure
with a large heating load.
a. ±10%
b. +15%
c. -25%
d. +25%
4. The combined output of a heat pump and its
auxiliary heat should not exceed the calculated
heat loss of a home by more than %.
, NATE EXAM - AIR CONDITIONING AND HEAT PUMPS
QUESTIONS WITH ALL CORRECT & VERIFIED
d (All ofANSWERS
the above: air movement, humidity, tem- perature)
c (+15%)
d (+25%)
b (15%)
, NATE EXAM - AIR CONDITIONING AND HEAT PUMPS
QUESTIONS WITH ALL CORRECT & VERIFIED
ANSWERS
c. 20%
d. 25%
5. What amount of auxiliary electric heat is needed when b (3.2 kWh)
the output of a heat pump on a design day
equals 18,800 Btuh and the heat loss of a
home is 29,700 Btuh?
a. 2.1 kWh
b. 3.2 kWh
c. 5.0 kWh
d. 10.9 kWh
Note: 3,413 Btu/kW
6. The three processes that transfer heat energy are con- b (radiation)
duction, convection, and .
a. concentration
b. radiation
c. refraction
d. static pressure
7. Heat transfer that occurs when substances of different b
(conduction)
temperatures are in contact with each other is called
.
a. concentration
b. conduction
c. convection
d. radiation
, NATE EXAM - AIR CONDITIONING AND HEAT PUMPS
QUESTIONS WITH ALL CORRECT & VERIFIED
8. ANSWERS
