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HVAC CONTRACTOR EXAM PRACTICE QUESTIONS AND ANSWERS (100% PASS)

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  • Contractors License
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  • Contractors License

HVAC CONTRACTOR EXAM PRACTICE QUESTIONS AND ANSWERS (100% PASS) An instrument that measures potential differences between 2 points in an electrical circuit is called? A. potentiometer B. thermistor C. ohmeter D. voltmeter - Answer️️ -voltmeter This device uses a thermal sensing bulb at ...

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  • August 30, 2024
  • 37
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Contractors License
  • Contractors License
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OliviaWest
©PREP4EXAMS 2024/2025 REAL EXAM DUMPS Tuesday, August 6, 2024 10,57 AM



HVAC CONTRACTOR EXAM PRACTICE
QUESTIONS AND ANSWERS (100% PASS)


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


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




1

,©PREP4EXAMS 2024/2025 REAL EXAM DUMPS Tuesday, August 6, 2024 10,57 AM


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

b. employing service technicians to work under their license

c. loaning license to more than one company


d. continue to work on an expired license - Answer✔️✔️-employing service

technicians to work under their license

what is used to prevent microbiological growth and help "dirty socky syndrome?




2

,©PREP4EXAMS 2024/2025 REAL EXAM DUMPS Tuesday, August 6, 2024 10,57 AM




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


rooftop package hvac units utilize economizers for what primary purpose?




a. to exhaust extra indoor air

b. to equalize indoor/outdoor pressures




3

, ©PREP4EXAMS 2024/2025 REAL EXAM DUMPS Tuesday, August 6, 2024 10,57 AM


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

b. to smooth the end of the pipe

c. to remove burrs and chips from the inside




4

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