1|Page
NATE GAS EXAM VERSION 1 LATEST 2026 ACTUAL EXAM WITH
COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS (100%
VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED|| ||BRANDNEW!!!||
A furnace is inoperative because of a failure in the ignition
sequence at the flame proving stage. To check the flame proving
circuit the technician would... - ANSWER-Connect a
microampmeter set to DC microamps in the sensor circuit and
operate the furnace
A technician receives a call that a gas furnace is running
constantly in heating and cannot be shut off. while checking the
thermostat, the technician observes the burner shuts off by
removing the wire on the R terminal on the thermostat subbase...
- ANSWER-Most likely there is a short in the thermostat subbase
The continuity of a fuse should be tested by... - ANSWER-
Checking resistance with the power off
A standing pilot furnace uses a relay for controlling the supply
blower. On a call for heat, the burner lights, the fan control closes,
but the blower does not run. A check of voltage at the blower relay
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coil shows 24V. The load side measures 0V. The technician
should replace what... - ANSWER-Fan relay
The following is true about fan run capacitors... - ANSWER-The
fan capacitor shifts the electrical phase angle
The pressure switch on an induced draft blower system is not
closing properly; the technician can check the pressure using a...
- ANSWER-Bourdon tube pressure gauge
The blower access door is removed from a powered up gas
furnace with a door interlock switch. Assume the switch has not
been modified, the technician read across the door interlock
switch terminals should get... - ANSWER-Volts
A damaged section of double wall vent pipe is to be replaced with
a section produced by a different manufacturer... - ANSWER-The
installer should check the new section for compatible locking
joints
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If too much primary air is used the flame will... - ANSWER-Lift off
the burner
What is the problem when a high efficiency gas furnace is burning
primarily yellow... - ANSWER-The flame is burning without
sufficient combustion air
The cause of a voltage reading across a closed contact in a 24V
circuit is... - ANSWER-Pitted or dirty contacts
The following are the first two checks typically made on an
electronic control... - ANSWER-Presence of any on board
transformer voltage, proper output voltage
During a service call on a unit, the technician finds that the wiring
diagram is missing from the access panel. The technician may
begin troubleshooting by... - ANSWER-Tracing the circuits either
mentally or on a sketch pad
NATE GAS EXAM VERSION 1 LATEST 2026 ACTUAL EXAM WITH
COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS (100%
VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED|| ||BRANDNEW!!!||
A furnace is inoperative because of a failure in the ignition
sequence at the flame proving stage. To check the flame proving
circuit the technician would... - ANSWER-Connect a
microampmeter set to DC microamps in the sensor circuit and
operate the furnace
A technician receives a call that a gas furnace is running
constantly in heating and cannot be shut off. while checking the
thermostat, the technician observes the burner shuts off by
removing the wire on the R terminal on the thermostat subbase...
- ANSWER-Most likely there is a short in the thermostat subbase
The continuity of a fuse should be tested by... - ANSWER-
Checking resistance with the power off
A standing pilot furnace uses a relay for controlling the supply
blower. On a call for heat, the burner lights, the fan control closes,
but the blower does not run. A check of voltage at the blower relay
,2|Page
coil shows 24V. The load side measures 0V. The technician
should replace what... - ANSWER-Fan relay
The following is true about fan run capacitors... - ANSWER-The
fan capacitor shifts the electrical phase angle
The pressure switch on an induced draft blower system is not
closing properly; the technician can check the pressure using a...
- ANSWER-Bourdon tube pressure gauge
The blower access door is removed from a powered up gas
furnace with a door interlock switch. Assume the switch has not
been modified, the technician read across the door interlock
switch terminals should get... - ANSWER-Volts
A damaged section of double wall vent pipe is to be replaced with
a section produced by a different manufacturer... - ANSWER-The
installer should check the new section for compatible locking
joints
, 3|Page
If too much primary air is used the flame will... - ANSWER-Lift off
the burner
What is the problem when a high efficiency gas furnace is burning
primarily yellow... - ANSWER-The flame is burning without
sufficient combustion air
The cause of a voltage reading across a closed contact in a 24V
circuit is... - ANSWER-Pitted or dirty contacts
The following are the first two checks typically made on an
electronic control... - ANSWER-Presence of any on board
transformer voltage, proper output voltage
During a service call on a unit, the technician finds that the wiring
diagram is missing from the access panel. The technician may
begin troubleshooting by... - ANSWER-Tracing the circuits either
mentally or on a sketch pad
