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The NATE Heat Pump exam is part of the Industry Competency Exams (ICE) required for HVAC technicians. The 2025/2026 verified study guides provide real exam-style multiple-choice and scenario-based questions with rationales, already graded A+, ensuring mastery of competencies required for certification.

NATE Air Distribution Test (Latest Update 2026 / 2027) Questions with Correct Answers | Grade A Question: How many holes must be made in a round duct in order to take a series of traverse readings? Answer: Two Question: A thermo-anemometer measures Answer: FPM directly Question: Dehumidification occurs when an air conditioning coil Answer: Operates at or below the dew point of the air moving across it Question: Who usually determines if a duct leakage test is to be pe...

NATE Air Distribution Exam (Latest Update 2026 / 2027) Questions & Answers | 100% Correct | Grade A Question: Blower door off Answer: A PSC motor will pull higher amps with the Question: Having the blower door off will cause a PSC motor to Answer: Pull higher amps Question: Velocity= Answer: CFM/Area (sqft) Question: V=500fpm Answer: 3"x10" duct at 100CFM (what is the velocity)

NATE Air Distribution Exam (Latest Update 2026 / 2027) Test Questions and Verified Answers | Grade A | 100% Correct Question: Why is it necessary to bleed fuel lines prior to burner operation. Answer: To remove air bubbles. Question: What tools are used to adjust an oil burner. Answer: CO2 analyzer and smoke gun. Question: A properly adjusted oil burner should have a smoke test reading of _______ . Answer: 0

NATE Air-to-Air Heat Pump Exam (Latest Update 2026 / 2027) Practice Test Questions & Answers | Grade A | 100% Verified Question: A technician has just installed a heat pump. It heats satisfactorily, but will not cool. A possible cause of the problem is the: Answer: Indoor check-valve is open. Question: Which instrument is used to check the velocity of air through a register? Answer: Anemometer. Question: You observe a compressor cycling on and off while the condense...

NATE Air-to-Air Heat Pump Exam (Latest Update 2026 / 2027) Test Prep Questions and Answers | Grade A | 100% Correct Question: As the pressure over a liquid is lowered... Answer: ...the boiling point of the liquid decreases. Question: As heat is added to a substance... Answer: ...the molecules move faster. Question: The amount of heat it takes to change the temperature of one pound of a substance by one degrees F is called: Answer: Specific heat. Question: Th...

NATE Air-to-Air Heat Pump Exam (Latest Update 2026 / 2027) Questions with Verified Answers | 100% Correct | Grade A Question: When working with refrigerants, when recovering, charging, or just attaching diagnostic equipment to a refrigeration system or any other container, you should always wear_____. Answer: goggles with side shields and gloves Question: The room thermostat terminal that is directly connected to the control transformer 24 volt power supply is_____. Answer: R ...

NATE Gas Heating Service (Air) Exam (Latest Update 2026 / 2027) Questions and Verified Answers | 100% Correct | Grade A Question: How should a limit safe check be performed on a gas furnace Answer: Jump out the control for at least 10 min Question: How is an induced draft pressure switch tested for proper operation Answer: De energize the draft inductor motor and test the switch with a nanometer Question: Which of the following are input signals to a high efficiency...