AHIT Heating & Cooling | Exam Revision Questions And Correct
Answers | Graded A+ | 2025 Update |
1. When inspecting the heating equipment, the inspector is not required to _______________.
a. Observe automatic safety controls
b. Open readily openable access panels provided by the manufacturer
c. Operate heating systems when conditions may cause equipment damage
d. Operate the system using normal operating controls - Answer -C
1. If a heating system appears to be improperly vented after the inspector fires it, the inspector
should
____________.
a. Ask the owner to inspect the venting
b. Investigate the cause of improper venting
c. Repair the venting issue and proceed
d. Turn off the system promptly - Answer -D
1. Which of the following is not a part of the heating inspection?
a. Combustion product and disposal system
b. Heating equipment
c. Humidifiers
d. Old steam boilers - Answer -C
1. What should be a concern when inspecting electronic air filters?
a. Cuts from sheet metal
b. Electrical shock
c. Explosion
d. Harmful filth - Answer -B
1. Why should a furnace not be operated?
a. A masonry chimney
,b. Improper venting
c. Rusted ductwork
d. Too much aluminum foil present to properly inspect it - Answer -B
1. When should the inspector have the customer stand back for safety's sake?
a. When the furnace boiler is fired
b. When the safety switch is tested
c. When the thermostat is manipulated
d. When the venting is inspected - Answer -A
1. What should the inspector do if he or she finds a cracked heat exchanger?
a. Report it as a major repair
b. Sell the customer a new furnace
c. Tell the customer it will probably last five more years
d. Turn off the furnace immediately - Answer -A
1. What is overshooting?
a. A condition where a house is heated higher than the thermostat is set for
b. A condition where different zones of a house are controlled by different thermostats
c. A condition where the heating system turns on and off too frequently
d. A condition where the thermostat is not level, causing incorrect temperature readings - Answer
-A
1. Forced warm-air heating systems are an example of what type of heat transfer?
a. Conduction
b. Convection
c. Radiation
d. Solar - Answer -B
1. What type of central heating system is always required to have a remote safety switch?
a. Electric furnace
b. Gas-fired
c. Heat pump
d. Oil-fired - Answer -D
, 1. What does a red tag on the gas line at the heating unit mean?
a. The gas utility has shut off the appliance due to safety concerns
b. The unit has passed inspection by a qualified technician
c. The unit is shut down for the summer
d. The unit must be tuned up by a qualified technician - Answer -A
1. What is the purpose of the high limit control on a forced warm air furnace?
a. It heats the air
b. It turns off the burners if the furnace hits a preset high temperature
c. It turns off the fan when the furnace reaches a preset low temperature
d. It turns on the fan when the furnace hits a preset high temperature - Answer -B
1. What function does the draft hood or draft diverter play in a heating unit?
a. It allows CO to escape into the home before passing up the flue
b. It delivers draft air to the unit
c. It protects the unit from updrafts
d. It provides combustion air for the unit - Answer -C
1. What conditions of a gas furnace should all be reported as a safety hazard?
a. Blocked flue, dirty burners
b. Flashback, dirty burners
c. Spillage from the draft diverted, blocked flue
d. Spillage from the draft diverter, use of a metal chimney - Answer -C
1. What is the purpose of waiting five minutes before relighting a pilot that has gone out during
the
inspection?
a. To allow gases to dissipate and become diluted
b. To give the unit a chance to cool down before putting your hands near the pilot
c. To go get a cold beer
d. To prevent over-cycling - Answer -A
1. What condition is usually the cause of yellow-tipped flames in a gas heating unit?
a. Gas/air mixture flow velocity greater than the burn rate
Answers | Graded A+ | 2025 Update |
1. When inspecting the heating equipment, the inspector is not required to _______________.
a. Observe automatic safety controls
b. Open readily openable access panels provided by the manufacturer
c. Operate heating systems when conditions may cause equipment damage
d. Operate the system using normal operating controls - Answer -C
1. If a heating system appears to be improperly vented after the inspector fires it, the inspector
should
____________.
a. Ask the owner to inspect the venting
b. Investigate the cause of improper venting
c. Repair the venting issue and proceed
d. Turn off the system promptly - Answer -D
1. Which of the following is not a part of the heating inspection?
a. Combustion product and disposal system
b. Heating equipment
c. Humidifiers
d. Old steam boilers - Answer -C
1. What should be a concern when inspecting electronic air filters?
a. Cuts from sheet metal
b. Electrical shock
c. Explosion
d. Harmful filth - Answer -B
1. Why should a furnace not be operated?
a. A masonry chimney
,b. Improper venting
c. Rusted ductwork
d. Too much aluminum foil present to properly inspect it - Answer -B
1. When should the inspector have the customer stand back for safety's sake?
a. When the furnace boiler is fired
b. When the safety switch is tested
c. When the thermostat is manipulated
d. When the venting is inspected - Answer -A
1. What should the inspector do if he or she finds a cracked heat exchanger?
a. Report it as a major repair
b. Sell the customer a new furnace
c. Tell the customer it will probably last five more years
d. Turn off the furnace immediately - Answer -A
1. What is overshooting?
a. A condition where a house is heated higher than the thermostat is set for
b. A condition where different zones of a house are controlled by different thermostats
c. A condition where the heating system turns on and off too frequently
d. A condition where the thermostat is not level, causing incorrect temperature readings - Answer
-A
1. Forced warm-air heating systems are an example of what type of heat transfer?
a. Conduction
b. Convection
c. Radiation
d. Solar - Answer -B
1. What type of central heating system is always required to have a remote safety switch?
a. Electric furnace
b. Gas-fired
c. Heat pump
d. Oil-fired - Answer -D
, 1. What does a red tag on the gas line at the heating unit mean?
a. The gas utility has shut off the appliance due to safety concerns
b. The unit has passed inspection by a qualified technician
c. The unit is shut down for the summer
d. The unit must be tuned up by a qualified technician - Answer -A
1. What is the purpose of the high limit control on a forced warm air furnace?
a. It heats the air
b. It turns off the burners if the furnace hits a preset high temperature
c. It turns off the fan when the furnace reaches a preset low temperature
d. It turns on the fan when the furnace hits a preset high temperature - Answer -B
1. What function does the draft hood or draft diverter play in a heating unit?
a. It allows CO to escape into the home before passing up the flue
b. It delivers draft air to the unit
c. It protects the unit from updrafts
d. It provides combustion air for the unit - Answer -C
1. What conditions of a gas furnace should all be reported as a safety hazard?
a. Blocked flue, dirty burners
b. Flashback, dirty burners
c. Spillage from the draft diverted, blocked flue
d. Spillage from the draft diverter, use of a metal chimney - Answer -C
1. What is the purpose of waiting five minutes before relighting a pilot that has gone out during
the
inspection?
a. To allow gases to dissipate and become diluted
b. To give the unit a chance to cool down before putting your hands near the pilot
c. To go get a cold beer
d. To prevent over-cycling - Answer -A
1. What condition is usually the cause of yellow-tipped flames in a gas heating unit?
a. Gas/air mixture flow velocity greater than the burn rate
