NATE GAS HEATING EXAM ACTUAL EXAM 2026 || MOST
RECENT EXAM 2026|2027 ACTUAL COMPLETE REAL EXAM
QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS)
ALREADY GRADED A+ | GUARANTEED SUCCESS!! NEWEST
EXAM | JUST RELEASED!!
What precautions are required when mounting any gas furnace on a
wood platform in an attic? -ANSWERS-None
The gas control valve may be damaged if exposed to an inlet pressure
above: -ANSWERS-14 in. W.C.
How many elbows and joints should a vent connector have: -ANSWERS-
As few as possible to reduce resistance of flue gases
What conditions, if any may a technician route the exhaust of the
furnace into the exhaust vent of the water heater? -ANSWERS-Under
no conditions may you use the water heater exhaust vent.
How may a technician terminate the intake and exhaust for proper
operation of a high efficiency gas furnace when using scheduled 40 PVC
pipe: -ANSWERS-By using the specific manufacturers termination kit or
make one to meet their requirements.
,When suspended with metal strap and no saddle, flexible duct should
be: -ANSWERS-Supported with a minimum strap width of 1/2"
Installing a gas furnace and not an air conditioner has what affect on
the installation of the supply ductwork: -ANSWERS-Leave adequate
space should be allowed for addition of a coil in the future when
feasible
Leveling of a Mercury bulb is: -ANSWERS-Critical
Spray-type atomizing humidifiers are installed to: -ANSWERS-Discharge
moisture into the supply duct
Electronic air cleaners (EAC) installed in a gas furnace system should be
wired so they: -ANSWERS-Only operate any time the EAC On-Off switch
is turned to ON.
The LP gas manifold pressure is commonly: -ANSWERS-10 to 11 in. W.C.
The polarity of a 120V gas furnace equipped with electronic flame
rectification is important because: -ANSWERS-The ignition control may
not prove flame
, Using a voltmeter, a technician can determine voltage drop at a gas
furnace: -ANSWERS-With the furnace not operating and then with the
furnace operating.
The setting on a 4 speed PSC blower motor can be changed by changing
the: -ANSWERS-Motor tap connection
When starting up a dual system, the temperature rise method for
determining airflow cannot be used with compressor cycle of the heat
pump because: -ANSWERS-The capacity of the system varies too much
with outdoor temperature.
The flame pattern a technician would expect to see on a properly
operating single stage gas furnace equipped with "in shot" type burner
is a: -ANSWERS-Hard and forceful flame with a light blue appearance
and little to no yellow
Compressed air is recommended for a: -ANSWERS-Pressurization leak
test of fuel gas pipe
Diaphragm type differential pressure gauge is used to: -ANSWERS-
Measure air pressure
The pressure reading on a manometer is expressed in: -ANSWERS-
Inches of water
RECENT EXAM 2026|2027 ACTUAL COMPLETE REAL EXAM
QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS)
ALREADY GRADED A+ | GUARANTEED SUCCESS!! NEWEST
EXAM | JUST RELEASED!!
What precautions are required when mounting any gas furnace on a
wood platform in an attic? -ANSWERS-None
The gas control valve may be damaged if exposed to an inlet pressure
above: -ANSWERS-14 in. W.C.
How many elbows and joints should a vent connector have: -ANSWERS-
As few as possible to reduce resistance of flue gases
What conditions, if any may a technician route the exhaust of the
furnace into the exhaust vent of the water heater? -ANSWERS-Under
no conditions may you use the water heater exhaust vent.
How may a technician terminate the intake and exhaust for proper
operation of a high efficiency gas furnace when using scheduled 40 PVC
pipe: -ANSWERS-By using the specific manufacturers termination kit or
make one to meet their requirements.
,When suspended with metal strap and no saddle, flexible duct should
be: -ANSWERS-Supported with a minimum strap width of 1/2"
Installing a gas furnace and not an air conditioner has what affect on
the installation of the supply ductwork: -ANSWERS-Leave adequate
space should be allowed for addition of a coil in the future when
feasible
Leveling of a Mercury bulb is: -ANSWERS-Critical
Spray-type atomizing humidifiers are installed to: -ANSWERS-Discharge
moisture into the supply duct
Electronic air cleaners (EAC) installed in a gas furnace system should be
wired so they: -ANSWERS-Only operate any time the EAC On-Off switch
is turned to ON.
The LP gas manifold pressure is commonly: -ANSWERS-10 to 11 in. W.C.
The polarity of a 120V gas furnace equipped with electronic flame
rectification is important because: -ANSWERS-The ignition control may
not prove flame
, Using a voltmeter, a technician can determine voltage drop at a gas
furnace: -ANSWERS-With the furnace not operating and then with the
furnace operating.
The setting on a 4 speed PSC blower motor can be changed by changing
the: -ANSWERS-Motor tap connection
When starting up a dual system, the temperature rise method for
determining airflow cannot be used with compressor cycle of the heat
pump because: -ANSWERS-The capacity of the system varies too much
with outdoor temperature.
The flame pattern a technician would expect to see on a properly
operating single stage gas furnace equipped with "in shot" type burner
is a: -ANSWERS-Hard and forceful flame with a light blue appearance
and little to no yellow
Compressed air is recommended for a: -ANSWERS-Pressurization leak
test of fuel gas pipe
Diaphragm type differential pressure gauge is used to: -ANSWERS-
Measure air pressure
The pressure reading on a manometer is expressed in: -ANSWERS-
Inches of water
