DETAILED STUDY GUIDE / LATEST
VERSION PRACTICE QUESTIONS AND
VERIFIED SOLUTIONS/ A+ GRADE SCORE
SOLUTION.
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 - ANS>> d (all of the above: clear, complete, concise)
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 - ANS>> d (Refrigerant)
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 - ANS>> a (can help you diagnose the
problem)
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 - ANS>> b (listen to the customer first, then ask questions)
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 - ANS>> b (1,600 ft3)
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 - ANS>> b (1,200 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 - ANS>> c (1,600 CFM)
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 - ANS>> a (79 in2)
What is the advantage of using a tube cutter to cut copper pipe?
, a. It can cut hard or soft drawn copper
b. It leaves no metal shavings to contaminate the system
c. It produces a clean, square cut
d. All of the above - ANS>> 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.)
Spring-type benders may be used on ____.
a. soft drawn copper
b. hard drawn copper
c. all copper pipe
d. steel pipe - ANS>> a (soft drawn copper)
A flaring tool is used to ____.
a. make a mechanical joint in tubing
b. measure pipe diameters
c. remove burrs from piping
d. solder tubing without the use of coupling - ANS>> a (make a mechanical
joint in tubing)
A swaging tool is used to ____.
a. cut copper tubing
b. make a mechanical joint in tubing
c. remove burrs from piping
d. solder tubing without the use of couplings - ANS>> d (solder tubing
without the use of couplings)
What is one of the advantages of a glass-stem thermometer?
a. It is very accurate
b. It is very durable
c. It comes with a digital readout
d. Non of the above - ANS>> a (It is very accurate)
In discussing human comfort, the temperature most commonly referred to
is ____.