AHIT HVAC | Exam Revision Questions And Correct Answers |
Graded A+ | 2025 Update |
On most heat pumps during a heating season, the outside coil will go into a defrost cycle every 60-
90
mins and last for - Answer -1-2 mins
a house that you are inspecting has and unit pilot. what is your req as an inspector? - Answer -to
report
the pilot was out
a good sign that there is a crack or hole in the heat exchanger is - Answer -all answers
strange smell at register
irregular flame pattern when blower is on
severe rusting of the exchanger
what is the purpose of an accumulator - Answer -Keep liquid refrigerant out of the compressor
the hartford loop in a steam system - Answer -Precludes siphon action if the unit develops a leak
the two main components of an air cooled air conditioning system are - Answer -evaporator unit
and the
condensing unit
Wall furnace vent is what type? - Answer -bw
which of the following should be reported as an item needing replacement or repair within the next
five
years - Answer -any copper boiler over 10 years old
why should a furnace not be operated - Answer -improper venting
in a heat pump (heating mode) the evaporator is - Answer -outside
what function does athe draft hood or draft diverter play on a heating unit - Answer -it protects the
unit
from potential down drafting
what might happen if you have an older programmable thermostat and the inspector turns off the
heating units safety switch - Answer -the thermostats program can be lost
Graded A+ | 2025 Update |
On most heat pumps during a heating season, the outside coil will go into a defrost cycle every 60-
90
mins and last for - Answer -1-2 mins
a house that you are inspecting has and unit pilot. what is your req as an inspector? - Answer -to
report
the pilot was out
a good sign that there is a crack or hole in the heat exchanger is - Answer -all answers
strange smell at register
irregular flame pattern when blower is on
severe rusting of the exchanger
what is the purpose of an accumulator - Answer -Keep liquid refrigerant out of the compressor
the hartford loop in a steam system - Answer -Precludes siphon action if the unit develops a leak
the two main components of an air cooled air conditioning system are - Answer -evaporator unit
and the
condensing unit
Wall furnace vent is what type? - Answer -bw
which of the following should be reported as an item needing replacement or repair within the next
five
years - Answer -any copper boiler over 10 years old
why should a furnace not be operated - Answer -improper venting
in a heat pump (heating mode) the evaporator is - Answer -outside
what function does athe draft hood or draft diverter play on a heating unit - Answer -it protects the
unit
from potential down drafting
what might happen if you have an older programmable thermostat and the inspector turns off the
heating units safety switch - Answer -the thermostats program can be lost
