NATE GAS FURNACE SERVICE 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!!
Operating sound a consideration in the location of a heating unit
because: -ANSWERS-Excessive noise could be disruptive to the
customer
A worn pulley is a cause for: -ANSWERS-Blower belt noise
A wet bulb reading is very close to the dry bulb reading from the same
instrument indicates: -ANSWERS-Relative humidity is very high
You are responding to a report of "drafty air" in a room during the
heating season: -ANSWERS-The problem is register velocity is too low
Heat always moves to equalize temperature. Convection moves
warmer air to the ceiling as it is added to the space which causes: -
ANSWERS-The temperature in the rooms not to be the same.
The secondary condensate drain of an air conditioning coil mounted
with a horizontal gas furnace in the attic must always be connected: -
ANSWERS-To a location readily visible and according to local code
,A typical four-way multi positional gas furnace is converted from up
flow to down flow by: -ANSWERS-Turning the furnace upside down
with specified alterations.
The role oxygen plays in the proper combustion of natural gas is it: -
ANSWERS-Combines with the carbon to form carbon dioxide and with
the hydrogen to form water vapor
Heat exchangers are typically sealed -ANSWERS-In the furnace housing
by gaskets
The most important consideration when working on a gas furnace with
ribbon type burners is the: -ANSWERS-Individual burners must be
mounted in correct alignment
An 80% efficiency gas furnace, mounted a crawl space: -ANSWERS-
Draws its combustion air from the space surrounding the furnace
Combustion air is often, brought into a non-direct vent gas furnace,
located in an interior closet (confined space): -ANSWERS-Two
permanent openings of sufficient size must be used is important to
remember.
, A "cross break" made on all sides of any rectangular section of metal
duct will: -ANSWERS-Increase rigidity and reduced vibration
The voltage most often used to power a residential unit is: -ANSWERS-
240V single phase
When thermocouple pilot flame is lost on a standing pilot gas furnace,
the primary component which shuts off gas flow to the main burner is
the: -ANSWERS-Pilot solenoid
How much of the end of the thermocouple should be enveloped by the
pilot flame: -ANSWERS-3/8 to 1/2 inch
Primary air is mixed with the gas within the: -ANSWERS-Burner head
What is the purpose of an induced draft blower in a non-condensing
gas furnace: -ANSWERS-To create a negative pressure in the heat
exchanger
In the sequence of operations of an induced draft, intermittent pilot gas
furnace: -ANSWERS-The induced draft motor starts when the
thermostat calls for heat
A gas furnace with a standing pilot uses a flame switch for proving pilot
flame: -ANSWERS-Several millivolts are generated by the flame
MOST RECENT EXAM 2026|2027 ACTUAL COMPLETE REAL
EXAM QUESTIONS AND CORRECT ANSWERS (VERIFIED
ANSWERS) ALREADY GRADED A+ | GUARANTEED SUCCESS!!
NEWEST EXAM | JUST RELEASED!!
Operating sound a consideration in the location of a heating unit
because: -ANSWERS-Excessive noise could be disruptive to the
customer
A worn pulley is a cause for: -ANSWERS-Blower belt noise
A wet bulb reading is very close to the dry bulb reading from the same
instrument indicates: -ANSWERS-Relative humidity is very high
You are responding to a report of "drafty air" in a room during the
heating season: -ANSWERS-The problem is register velocity is too low
Heat always moves to equalize temperature. Convection moves
warmer air to the ceiling as it is added to the space which causes: -
ANSWERS-The temperature in the rooms not to be the same.
The secondary condensate drain of an air conditioning coil mounted
with a horizontal gas furnace in the attic must always be connected: -
ANSWERS-To a location readily visible and according to local code
,A typical four-way multi positional gas furnace is converted from up
flow to down flow by: -ANSWERS-Turning the furnace upside down
with specified alterations.
The role oxygen plays in the proper combustion of natural gas is it: -
ANSWERS-Combines with the carbon to form carbon dioxide and with
the hydrogen to form water vapor
Heat exchangers are typically sealed -ANSWERS-In the furnace housing
by gaskets
The most important consideration when working on a gas furnace with
ribbon type burners is the: -ANSWERS-Individual burners must be
mounted in correct alignment
An 80% efficiency gas furnace, mounted a crawl space: -ANSWERS-
Draws its combustion air from the space surrounding the furnace
Combustion air is often, brought into a non-direct vent gas furnace,
located in an interior closet (confined space): -ANSWERS-Two
permanent openings of sufficient size must be used is important to
remember.
, A "cross break" made on all sides of any rectangular section of metal
duct will: -ANSWERS-Increase rigidity and reduced vibration
The voltage most often used to power a residential unit is: -ANSWERS-
240V single phase
When thermocouple pilot flame is lost on a standing pilot gas furnace,
the primary component which shuts off gas flow to the main burner is
the: -ANSWERS-Pilot solenoid
How much of the end of the thermocouple should be enveloped by the
pilot flame: -ANSWERS-3/8 to 1/2 inch
Primary air is mixed with the gas within the: -ANSWERS-Burner head
What is the purpose of an induced draft blower in a non-condensing
gas furnace: -ANSWERS-To create a negative pressure in the heat
exchanger
In the sequence of operations of an induced draft, intermittent pilot gas
furnace: -ANSWERS-The induced draft motor starts when the
thermostat calls for heat
A gas furnace with a standing pilot uses a flame switch for proving pilot
flame: -ANSWERS-Several millivolts are generated by the flame
