1|Page
First Class Stationary Air Conditioning - 636-LA
Contractor Verified Exam COMPLETE QUESTIONS
AND DETAILED SOLUTIONS LATEST UPDATE THIS
YEAR|| NEWEST EXAM!!!
what is used to prevent microbiological growth and help
"dirty socky syndrome?
a. radiation
b. ultraviolet light
c. electrostatic filters
d. heat rated static filters - Answer-ultraviolet light
a precisely sized drilled hole through which gas flows from
the manifold to the burner is known as what
a. spud
b. drill size
c. orifice
d. dimple - Answer-orifice
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rooftop package hvac units utilize economizers for what
primary purpose?
a. to exhaust extra indoor air
b. to equalize indoor/outdoor pressures
c. to allow outside air to be used for cooling in mild
weather
d. to raise indoor relative humidity - Answer-to allow
outside air to be used for cooling in mild weather
what is the minimum gauge required for a 12" galvanized
steel connector used to connect a lows heat appliance?
a. .019
b. .029
c. .034
d. .2 - Answer-.029
after cutting pipes they must be reamed for what purpose?
a. to clean pipe threads
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b. to smooth the end of the pipe
c. to remove burrs and chips from the inside
d. to help the threading process - Answer-to remove burrs
and chips from the inside
in manual d what is the suggested friction (IWC) loss for
hand dampers?
a. .01
b. .08
c. .1
d. .03 - Answer-.03
An instrument that measures potential differences
between 2 points in an electrical circuit is called?
A. potentiometer
B. thermistor
C. ohmeter
D. voltmeter - Answer-voltmeter
, 4|Page
This device uses a thermal sensing bulb at the outlet of
the evaporator to sense temperature and control
superheat
A. automatic expansion valve
B. thermostatic expansion valve
C. low side float
D. schraeder valve - Answer-thermostatic expansion valve
when installing a reversing valve on a heat pump, how
many brazed joints should be made?
a. 3
b. 5
c. 4
d. 2 - Answer-4
what would not be considered a misuse of a contractors
license?
a. advertising under mulitple names
First Class Stationary Air Conditioning - 636-LA
Contractor Verified Exam COMPLETE QUESTIONS
AND DETAILED SOLUTIONS LATEST UPDATE THIS
YEAR|| NEWEST EXAM!!!
what is used to prevent microbiological growth and help
"dirty socky syndrome?
a. radiation
b. ultraviolet light
c. electrostatic filters
d. heat rated static filters - Answer-ultraviolet light
a precisely sized drilled hole through which gas flows from
the manifold to the burner is known as what
a. spud
b. drill size
c. orifice
d. dimple - Answer-orifice
,2|Page
rooftop package hvac units utilize economizers for what
primary purpose?
a. to exhaust extra indoor air
b. to equalize indoor/outdoor pressures
c. to allow outside air to be used for cooling in mild
weather
d. to raise indoor relative humidity - Answer-to allow
outside air to be used for cooling in mild weather
what is the minimum gauge required for a 12" galvanized
steel connector used to connect a lows heat appliance?
a. .019
b. .029
c. .034
d. .2 - Answer-.029
after cutting pipes they must be reamed for what purpose?
a. to clean pipe threads
,3|Page
b. to smooth the end of the pipe
c. to remove burrs and chips from the inside
d. to help the threading process - Answer-to remove burrs
and chips from the inside
in manual d what is the suggested friction (IWC) loss for
hand dampers?
a. .01
b. .08
c. .1
d. .03 - Answer-.03
An instrument that measures potential differences
between 2 points in an electrical circuit is called?
A. potentiometer
B. thermistor
C. ohmeter
D. voltmeter - Answer-voltmeter
, 4|Page
This device uses a thermal sensing bulb at the outlet of
the evaporator to sense temperature and control
superheat
A. automatic expansion valve
B. thermostatic expansion valve
C. low side float
D. schraeder valve - Answer-thermostatic expansion valve
when installing a reversing valve on a heat pump, how
many brazed joints should be made?
a. 3
b. 5
c. 4
d. 2 - Answer-4
what would not be considered a misuse of a contractors
license?
a. advertising under mulitple names
