NATE Exam: Core Essentials with Answers
1. d (very important) The ability to utilize all types of communi-
cation skills is to the HVACR tech-
nician.
a. not as important as "h
1. d (very important) The ability to utilize all types of communi-
cation skills is to the HVACR tech-
nician.
a. not as important as "hands-on" techni-
cal skills
b. somewhat important
c. unimportant
d. very important
2. d (all of the above: clear, com- It is important to be in filling out
plete, concise) service orders so that office staff, oth-
er technicians, and customers will know
what work you completed on the job.
a. clear
b. complete
c. concise
d. all of the above
3. d (Refrigerant) When explaining to a customer that you
have adjusted the system charge, which
of the following terms is most appropri-
ate?
a. Freon
b. Gas
c. Juice
d. Refrigerant
4. a (can help you diagnose the Listening carefully to what a customer is
problem) 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
5.
, NATE Exam: Core Essentials with Answers
b (listen to the customer first, When you arrive at a service call and
then ask questions) 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
6. b (1,600 ft3) What is the volume of a room that mea-
sures 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
7. b (1,200 CFM) 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
8. c (1,600 CFM) 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
9. a (79 in2) What is the cross-sectional area of a
10-in round metal duct?
, NATE Exam: Core Essentials with Answers
a. 79 in2
b. 200 in2
c. 314 in2
d. 418 in2
Note: Area of a circle = Àxradius^2
10. d (1,800 ft/min) 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)
11. d (1,800 ft/min) 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)
12. d (all of the above: honest, loyal, Customers depend on you to be .
patient)
a. honest
b. loyal
c. patient
d. all of the above
13. c (demonstrate system opera- Before leaving a service call, you should
tion and describe basic main- be sure to .
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