1|Page
G2 & GAS TECHNICIAN G2 2025/2026 EXAM
2025/2026 WITH ALL QUESTIONS AND DETAILED
CORRECT ANSWERS (EXPERT VERIFIED) FOR
GUARANTEED PASS ALREADY TOP-RATED A+.
G2 & GAS TECHNICIAN
Master your G2 & Gas Technician G2 Exam with this comprehensive
resource. It covers codes, safety procedures, and system fundamentals.
Ideal for boosting knowledge and ensuring exam success.
An inline Ammeter is connected ...... ANSWER ....... In
series with the device being checked
As the length of an Electrical run increases, it may be
necessary to ...... ANSWER ....... Increase the Wire
Size
Fuses serving motor circuits should be of ...... ANSWER
....... Time Delay Type
Millivolt wiring should be isolated from Line Voltage Wiring
because ...... ANSWER ....... The Line Voltage will
induce a voltage into the Millivolt Wiring
,2|Page
Which tool is used to determine if the windings on an
Electric Motor have shorted? ...... ANSWER .......
Ohmmeter
On an Electrical Schematic Diagram, the safety controls are
typically drawn: ...... ANSWER ....... To the Left of the
Loads
Which of the following types of wire must be used in Damp
locations? ...... ANSWER ....... NMW
On an Electrical Schematic, all operating controls are drawn:
...... ANSWER ....... Normally Open
As the length of a Conductor Increases, the Voltage Drop
along the Conductor: ...... ANSWER ....... Increases
When a new appliance is to be installed in a typical
residential basement and the Supply Wiring to it is
concealed, which of the following types of wire is acceptable,
and most cost effective ...... ANSWER ....... NMD
When checking a circuit of unknown Voltage using an
analog meter with 0-30V, 0-125V, 0-250V, and 0-600V,
,3|Page
which scale should be selected ...... ANSWER ....... 0-
600V
A 120 Volt Power Supply for a residential Electrical Circuit is
taken from the: ...... ANSWER ....... Load side of one
branch circuit breaker and a Neutral Plug
A receptacle mounted Ground Fault Circuit Interrupted
protects against: ...... ANSWER ....... Current Flow to
Ground
An Electrical Pictorial Diagram is used to: ...... ANSWER
....... Show component location
When using an Ohmmeter, the most important thing to
remember is to: ...... ANSWER ....... De-engerize the
Circuit
A zero Ohmmeter reading taken between the casing of a
Solenoid and a disconnected Wire to the Solenoid indicates
that ...... ANSWER ....... The coil is shorted to the
casing of the device
, 4|Page
The instrument used to determine Potential Difference in an
Electrical Circuit is the: ...... ANSWER ....... Voltmeter
When the Voltage has been determine to be approximately
120 volts, which scale on an analog meter should be selected
for most accuracy? ...... ANSWER ....... 0-250 Volts
The resistance of a Thermistor... as its temperature rises
...... ANSWER ....... Decreases
A Hot Surface Igniter requires how many volts to operate
properly ? ...... ANSWER ....... 115 to 125 VAC
It is permissible to use gas piping as an Electrical Ground if:
...... ANSWER ....... It is used in the Flame Safeguard
Circuit
A Thermopile or Powerpile generates: ...... ANSWER
....... Hundreds of Millivolts
How is the Heat Anticipator setting determined for a
Thermostat with an adjustable Anticipator? ......
ANSWER ....... By measuring the current drawn by the
G2 & GAS TECHNICIAN G2 2025/2026 EXAM
2025/2026 WITH ALL QUESTIONS AND DETAILED
CORRECT ANSWERS (EXPERT VERIFIED) FOR
GUARANTEED PASS ALREADY TOP-RATED A+.
G2 & GAS TECHNICIAN
Master your G2 & Gas Technician G2 Exam with this comprehensive
resource. It covers codes, safety procedures, and system fundamentals.
Ideal for boosting knowledge and ensuring exam success.
An inline Ammeter is connected ...... ANSWER ....... In
series with the device being checked
As the length of an Electrical run increases, it may be
necessary to ...... ANSWER ....... Increase the Wire
Size
Fuses serving motor circuits should be of ...... ANSWER
....... Time Delay Type
Millivolt wiring should be isolated from Line Voltage Wiring
because ...... ANSWER ....... The Line Voltage will
induce a voltage into the Millivolt Wiring
,2|Page
Which tool is used to determine if the windings on an
Electric Motor have shorted? ...... ANSWER .......
Ohmmeter
On an Electrical Schematic Diagram, the safety controls are
typically drawn: ...... ANSWER ....... To the Left of the
Loads
Which of the following types of wire must be used in Damp
locations? ...... ANSWER ....... NMW
On an Electrical Schematic, all operating controls are drawn:
...... ANSWER ....... Normally Open
As the length of a Conductor Increases, the Voltage Drop
along the Conductor: ...... ANSWER ....... Increases
When a new appliance is to be installed in a typical
residential basement and the Supply Wiring to it is
concealed, which of the following types of wire is acceptable,
and most cost effective ...... ANSWER ....... NMD
When checking a circuit of unknown Voltage using an
analog meter with 0-30V, 0-125V, 0-250V, and 0-600V,
,3|Page
which scale should be selected ...... ANSWER ....... 0-
600V
A 120 Volt Power Supply for a residential Electrical Circuit is
taken from the: ...... ANSWER ....... Load side of one
branch circuit breaker and a Neutral Plug
A receptacle mounted Ground Fault Circuit Interrupted
protects against: ...... ANSWER ....... Current Flow to
Ground
An Electrical Pictorial Diagram is used to: ...... ANSWER
....... Show component location
When using an Ohmmeter, the most important thing to
remember is to: ...... ANSWER ....... De-engerize the
Circuit
A zero Ohmmeter reading taken between the casing of a
Solenoid and a disconnected Wire to the Solenoid indicates
that ...... ANSWER ....... The coil is shorted to the
casing of the device
, 4|Page
The instrument used to determine Potential Difference in an
Electrical Circuit is the: ...... ANSWER ....... Voltmeter
When the Voltage has been determine to be approximately
120 volts, which scale on an analog meter should be selected
for most accuracy? ...... ANSWER ....... 0-250 Volts
The resistance of a Thermistor... as its temperature rises
...... ANSWER ....... Decreases
A Hot Surface Igniter requires how many volts to operate
properly ? ...... ANSWER ....... 115 to 125 VAC
It is permissible to use gas piping as an Electrical Ground if:
...... ANSWER ....... It is used in the Flame Safeguard
Circuit
A Thermopile or Powerpile generates: ...... ANSWER
....... Hundreds of Millivolts
How is the Heat Anticipator setting determined for a
Thermostat with an adjustable Anticipator? ......
ANSWER ....... By measuring the current drawn by the
