HVAC/R COMPREHENSIVE TEST PAPER
2026 FULL QUESTIONS WITH CORRECT
ANSWERS
●● Heat exchange medium. Answer: Water is often used in heating
systems as a ________
●● The introduction of fresh air to control indoor air quality. Answer:
Ventilation is concerned with ______
●● Ultraviolent light. Answer: The growth of bacteria and other harmful
organisms can be reduced or eliminated by ________
●● The process by which circulating refrigerant absorbs heat in one
location and moves it to another location. Answer: The term mechanical
refrigeration cycle refers to _________
●● Heat pump. Answer: A device that is able to extract heat from the air
through the use of the refrigeration cycle is a ________
●● Lowers the refrigerant pressure entering the evaporator. Answer: The
expansion device in the mechanical refrigeration cycle ________
, ●● Evaporator. Answer: In a refrigeration system, heat is transferred
from the indoor air to the refrigerant at the _______
●● Release carbon monoxide. Answer: A leak in the vent pipe of a gas
furnace is a concern because it can ________
●● Mechanical contractor. Answer: Which of these companies is likely
to install HVAC/R equipment during the construction of a large office
building?
●● Reclaimed. Answer: In order to be resold on the open market, a
refrigerant must have been _________
●● Prohibited by federal law. Answer: Releasing CFC and HCFC
refrigerants or certain substitutes to the atmosphere is _______
●● False. Answer: The primary purpose of a building code is to regulate
the quality of all mechanical installations on a commercial site
●● Sale of equipment and parts. Answer: Which of the following is a
function performed by a distributor?
●● Manufacturer. Answer: Development and delivery of training
programs is typically a function of a _______
2026 FULL QUESTIONS WITH CORRECT
ANSWERS
●● Heat exchange medium. Answer: Water is often used in heating
systems as a ________
●● The introduction of fresh air to control indoor air quality. Answer:
Ventilation is concerned with ______
●● Ultraviolent light. Answer: The growth of bacteria and other harmful
organisms can be reduced or eliminated by ________
●● The process by which circulating refrigerant absorbs heat in one
location and moves it to another location. Answer: The term mechanical
refrigeration cycle refers to _________
●● Heat pump. Answer: A device that is able to extract heat from the air
through the use of the refrigeration cycle is a ________
●● Lowers the refrigerant pressure entering the evaporator. Answer: The
expansion device in the mechanical refrigeration cycle ________
, ●● Evaporator. Answer: In a refrigeration system, heat is transferred
from the indoor air to the refrigerant at the _______
●● Release carbon monoxide. Answer: A leak in the vent pipe of a gas
furnace is a concern because it can ________
●● Mechanical contractor. Answer: Which of these companies is likely
to install HVAC/R equipment during the construction of a large office
building?
●● Reclaimed. Answer: In order to be resold on the open market, a
refrigerant must have been _________
●● Prohibited by federal law. Answer: Releasing CFC and HCFC
refrigerants or certain substitutes to the atmosphere is _______
●● False. Answer: The primary purpose of a building code is to regulate
the quality of all mechanical installations on a commercial site
●● Sale of equipment and parts. Answer: Which of the following is a
function performed by a distributor?
●● Manufacturer. Answer: Development and delivery of training
programs is typically a function of a _______
