©BRAINBARTER 2024/2025
NATE: Core Essentials Exam Questions
With Verified Answers.
D (very important) - answer✔The ability to utilize all types of communication skills is ____ to
the HVACR technician.
d (all of the above: clear, complete, concise) - answer✔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.
d (Refrigerant) - answer✔When explaining to a customer that you have adjusted the system
charge, which of the following terms is most appropriate?
a (can help you diagnose the problem) - answer✔Listening carefully to what a customer is telling
you ____.
b (listen to the customer first, then ask questions) - answer✔When you arrive at a service call
and meet the customer, you should ____.
b (1,600 ft3) - answer✔What is the volume of a room that measures 10 ft by 20 ft with an 8-ft
ceiling?
b (1,200 CFM) - answer✔What is the CFM requirements for an 1,800-ft2 house with 8-ft
ceilings, if five air changes per hour are needed?
c (1,600 CFM) - answer✔What is the CFM requirement for an 2,400-ft2 house with 8-ft ceilings,
if five air changes per hour are needed?
a (79 in2) - answer✔What is the cross-sectional area of a 10-in round metal duct?
, ©BRAINBARTER 2024/2025
Note: Area of a circle = π x radius^2
d (1,800 ft/min) - answer✔How fast does air with a velocity pressure of 0.20 in. w.g. move
through a round duct?
Note: Velocity = 4005 x (the square root of velocity pressure)
d (1,800 ft/min) - answer✔How fast does air with a velocity pressure of 0.20 in w.g. move
through a square duct?
Note: Velocity = 4005 x (the square root of velocity pressure)
d (all of the above: honest, loyal, patient) - answer✔Customers depend on you to be ____.
c (demonstrate system operation and describe basic maintenance procedures to the customer) -
answer✔Before leaving a service call, you should be sure to ____.
d (All of the above: it can cut hard or soft drawn copper; it leaves no metal shavings to
contaminate the system; it produces a clean, square cut.) - answer✔What is the advantage of
using a tube cutter to cut copper pipe?
a (soft drawn copper) - answer✔Spring-type benders may be used on ____.
a (make a mechanical joint in tubing) - answer✔A flaring tool is used to ____.
d (solder tubing without the use of couplings) - answer✔A swaging tool is used to ____.
a (It is very accurate) - answer✔What is one of the advantages of a glass-stem thermometer?
NATE: Core Essentials Exam Questions
With Verified Answers.
D (very important) - answer✔The ability to utilize all types of communication skills is ____ to
the HVACR technician.
d (all of the above: clear, complete, concise) - answer✔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.
d (Refrigerant) - answer✔When explaining to a customer that you have adjusted the system
charge, which of the following terms is most appropriate?
a (can help you diagnose the problem) - answer✔Listening carefully to what a customer is telling
you ____.
b (listen to the customer first, then ask questions) - answer✔When you arrive at a service call
and meet the customer, you should ____.
b (1,600 ft3) - answer✔What is the volume of a room that measures 10 ft by 20 ft with an 8-ft
ceiling?
b (1,200 CFM) - answer✔What is the CFM requirements for an 1,800-ft2 house with 8-ft
ceilings, if five air changes per hour are needed?
c (1,600 CFM) - answer✔What is the CFM requirement for an 2,400-ft2 house with 8-ft ceilings,
if five air changes per hour are needed?
a (79 in2) - answer✔What is the cross-sectional area of a 10-in round metal duct?
, ©BRAINBARTER 2024/2025
Note: Area of a circle = π x radius^2
d (1,800 ft/min) - answer✔How fast does air with a velocity pressure of 0.20 in. w.g. move
through a round duct?
Note: Velocity = 4005 x (the square root of velocity pressure)
d (1,800 ft/min) - answer✔How fast does air with a velocity pressure of 0.20 in w.g. move
through a square duct?
Note: Velocity = 4005 x (the square root of velocity pressure)
d (all of the above: honest, loyal, patient) - answer✔Customers depend on you to be ____.
c (demonstrate system operation and describe basic maintenance procedures to the customer) -
answer✔Before leaving a service call, you should be sure to ____.
d (All of the above: it can cut hard or soft drawn copper; it leaves no metal shavings to
contaminate the system; it produces a clean, square cut.) - answer✔What is the advantage of
using a tube cutter to cut copper pipe?
a (soft drawn copper) - answer✔Spring-type benders may be used on ____.
a (make a mechanical joint in tubing) - answer✔A flaring tool is used to ____.
d (solder tubing without the use of couplings) - answer✔A swaging tool is used to ____.
a (It is very accurate) - answer✔What is one of the advantages of a glass-stem thermometer?
