NATE Exam: Core Essentials Exam With
Questions and Answers All Answers 100%
Verified (Latest Update 2025/2026 RATED
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d (very important) - CORRECT ANSWERS The ability to utilize all types of communication skills
is ____ to the HVACR technician.
a. not as important as "hands-on" technical skills
b. somewhat important
c. unimportant
d. very important
d (all of the above: clear, complete, concise) - CORRECT ANSWERS It is important to be ____ in
filling out service orders so that office staff, other technicians, and customers will know what work you
completed on the job.
a. clear
b. complete
c. concise
d. all of the above
d (Refrigerant) - CORRECT ANSWERS When explaining to a customer that you have adjusted
the system charge, which of the following terms is most appropriate?
a. Freon
b. Gas
,c. Juice
d. Refrigerant
a (can help you diagnose the problem) - CORRECT ANSWERS Listening carefully to what a
customer is telling you ____.
a. can help you diagnose the problem
b. is a waste of time
c. is not necessary
d. often will only confuse you
b (listen to the customer first, then ask questions) - CORRECT ANSWERS When you arrive at a
service call and meet the customer, you should ____.
a. ask questions first, then listen to what the customer has to say
b. listen to the customer first, then ask questions
c. avoid discussion with the customer
d. remind the customer that you are the professional and get on with your work
b (1,600 ft3) - CORRECT ANSWERS What is the volume of a room that measures 10 ft by 20 ft
with an 8-ft ceiling?
a. 800 ft3
b. 1,600 ft3
c. 2,400 ft3
d. 3,200 ft3
,b (1,200 CFM) - CORRECT ANSWERS What is the CFM requirements for an 1,800-ft2 house
with 8-ft ceilings, if five air changes per hour are needed?
a. 400 CFM
b. 1,200 CFM
c. 1,600 CFM
d. 2,400 CFM
c (1,600 CFM) - CORRECT ANSWERS What is the CFM requirement for an 2,400-ft2 house with
8-ft ceilings, if five air changes per hour are needed?
a. 400 CFM
b. 1,200 CFM
c. 1,600 CFM
d. 2,400 CFM
a (79 in2) - CORRECT ANSWERS What is the cross-sectional area of a 10-in round metal duct?
a. 79 in2
b. 200 in2
c. 314 in2
d. 418 in2
Note: Area of a circle = π x radius^2
d (1,800 ft/min) - CORRECT ANSWERS How fast does air with a velocity pressure of 0.20 in.
w.g. move through a round duct?
, a. 400 ft/min
b. 1,200 ft/min
c. 1,600 ft/min
d. 1,800 ft/min
Note: Velocity = 4005 x (the square root of velocity pressure)
d (1,800 ft/min) - CORRECT ANSWERS How fast does air with a velocity pressure of 0.20 in w.g.
move through a square duct?
a. 400 ft/min
b. 1,200 ft/min
c. 1,600 ft/min
d. 1,800 ft/min
Note: Velocity = 4005 x (the square root of velocity pressure)
d (all of the above: honest, loyal, patient) - CORRECT ANSWERS Customers depend on you to
be ____.
a. honest
b. loyal
c. patient
d. all of the above
Questions and Answers All Answers 100%
Verified (Latest Update 2025/2026 RATED
A+
d (very important) - CORRECT ANSWERS The ability to utilize all types of communication skills
is ____ to the HVACR technician.
a. not as important as "hands-on" technical skills
b. somewhat important
c. unimportant
d. very important
d (all of the above: clear, complete, concise) - CORRECT ANSWERS It is important to be ____ in
filling out service orders so that office staff, other technicians, and customers will know what work you
completed on the job.
a. clear
b. complete
c. concise
d. all of the above
d (Refrigerant) - CORRECT ANSWERS When explaining to a customer that you have adjusted
the system charge, which of the following terms is most appropriate?
a. Freon
b. Gas
,c. Juice
d. Refrigerant
a (can help you diagnose the problem) - CORRECT ANSWERS Listening carefully to what a
customer is telling you ____.
a. can help you diagnose the problem
b. is a waste of time
c. is not necessary
d. often will only confuse you
b (listen to the customer first, then ask questions) - CORRECT ANSWERS When you arrive at a
service call and meet the customer, you should ____.
a. ask questions first, then listen to what the customer has to say
b. listen to the customer first, then ask questions
c. avoid discussion with the customer
d. remind the customer that you are the professional and get on with your work
b (1,600 ft3) - CORRECT ANSWERS What is the volume of a room that measures 10 ft by 20 ft
with an 8-ft ceiling?
a. 800 ft3
b. 1,600 ft3
c. 2,400 ft3
d. 3,200 ft3
,b (1,200 CFM) - CORRECT ANSWERS What is the CFM requirements for an 1,800-ft2 house
with 8-ft ceilings, if five air changes per hour are needed?
a. 400 CFM
b. 1,200 CFM
c. 1,600 CFM
d. 2,400 CFM
c (1,600 CFM) - CORRECT ANSWERS What is the CFM requirement for an 2,400-ft2 house with
8-ft ceilings, if five air changes per hour are needed?
a. 400 CFM
b. 1,200 CFM
c. 1,600 CFM
d. 2,400 CFM
a (79 in2) - CORRECT ANSWERS What is the cross-sectional area of a 10-in round metal duct?
a. 79 in2
b. 200 in2
c. 314 in2
d. 418 in2
Note: Area of a circle = π x radius^2
d (1,800 ft/min) - CORRECT ANSWERS How fast does air with a velocity pressure of 0.20 in.
w.g. move through a round duct?
, a. 400 ft/min
b. 1,200 ft/min
c. 1,600 ft/min
d. 1,800 ft/min
Note: Velocity = 4005 x (the square root of velocity pressure)
d (1,800 ft/min) - CORRECT ANSWERS How fast does air with a velocity pressure of 0.20 in w.g.
move through a square duct?
a. 400 ft/min
b. 1,200 ft/min
c. 1,600 ft/min
d. 1,800 ft/min
Note: Velocity = 4005 x (the square root of velocity pressure)
d (all of the above: honest, loyal, patient) - CORRECT ANSWERS Customers depend on you to
be ____.
a. honest
b. loyal
c. patient
d. all of the above
