G2 prep exams [ACTUAL EXAM] LATEST VERSION [QUESTIONS AND ANSWERS] WITH PRACTICE
EXAM DETAILED AND VERIFIED FOR GUARANTEED PASS- LATEST UPDATE 2025 GRADED A
Which tool is used to determine if the windings on an electric motor have shorted?
al Voltmeter
b Ammeter
) Ohmmeter
d) Wattmete - CORRECT ANSWER Ohmmeter
On an electrical schematic diagram, the safety controls are typically drawn:
a)To the right of the loads,
b)Above theloads,
c)Below the loads.
(d)To the left of theloads. - CORRECT ANSWER To the left of the loads.
Which of the following types of wire must b e used in d a m p locations?
a NMD
(b) NMw
c) LVT
d) BX - CORRECT ANSWER B) nmw
On an electrical schematic, all operating controls are drawn:
a) In their energized positions.
b) In their de-energizedpositions,
c) Normally closed,
(d) Normally open. - CORRECT ANSWER Normally open.
An inline ammeter si connected:
(a) In series with the device being checked,
b) In parallel with the device being checked.
c) With the system power off,
d) Across the load. - CORRECT ANSWER In series with the device being checked,
As the length of a conductor increases, the voltage drop along the conductor:
(a) increases,
b) Decreases.
c) Remains the same.
d) Should b e as flexible as possible. - CORRECT ANSWER increases
When a new appliance is to be installed in a typical residential basement and the
supply wiring to it si to be concealed, which of the following types of wire is acceptable,
a n d most cost effective: - CORRECT ANSWER NMD
120 volt power supply for a residential electrical circuit is taken ferm the:
a) l Line side of one branch circuit breaker and a ground lug.
,b) Load side of one main circuit breaker and the line side of a second breaker,
c) Load side of one main breaker and the load side of the second main breaker, (
D) a Load side of one branch circuit breaker and a neutral lug. - CORRECT ANSWER
Load side of one branch circuit breaker and a neutral lug.
Areceptacle mounted ground fault circuit interrupter protects against:
a)Appliance overloading.
b)Dead shorts.
c)Short circuits,
(d) Current flow to ground. - CORRECT ANSWER Current flow to ground.
17. An electrical pictorial diagramis used to:
(a) Show component location,
b) Indicate how the system works,
c) Indicate part numbers of the devices,
d) Determine wiring sizes for the appliance. - CORRECT ANSWER Show component
location,
The power supply to a residential gas furnace is: - CORRECT ANSWER 120/1/60
As gauge number of a conductor increases, its current carrying capacity: - CORRECT
ANSWER decreases
As more circuits are added to a panel, the total current drawn from the panel -
CORRECT ANSWER increases
A hard sharp pilot flame indicates - CORRECT ANSWER the orifice is too small
Direct current travels: - CORRECT ANSWER B) in one direction only
A receptacle-mounted ground fault interrupter protects against? - CORRECT ANSWER
Current flow to ground
On an electrical schematic, the system is shown with the: - CORRECT ANSWER
disconnect open with all devices as though there is no call for heating
The normal fuse size for #12 AWG copper wire is - CORRECT ANSWER B) 20 amps
A zero Ohmmeter reading taken between the casing of a Solenoid and a disconnected
Wire to the Solenoid indicates that - CORRECT ANSWER The coil is shorted to the
casing of the device
As the diameter of a conductor decreases, its resistance - CORRECT ANSWER
increases
,ground fault interrupter must be installed in - CORRECT ANSWER Bathrooms and
other wet location
A branch circuit fuse is determined by the - CORRECT ANSWER size of wire
How much of the thermocouple tip should be in the pilot flame? - CORRECT ANSWER
3/8" to 1/2"
breaker installed at the main panel protects: - CORRECT ANSWER Only the loads
served by that breaker
The current carrying capacity of a conductor__________as the gauge number
increases - CORRECT ANSWER decreases
An ammeter must be connected in_________with the circuit being tested - CORRECT
ANSWER series
Which of the following types of wire is approved for damp location installation: -
CORRECT ANSWER b) NMW
The maximum fuse size for #12 AWG copper wire is - CORRECT ANSWER 20 amps
A control switch for a forced warm air furnace can be installed in the neutral wire -
CORRECT ANSWER d) never
A gas filled plug type fuse may be used - CORRECT ANSWER once
A Building electrical supply is rated in - CORRECT ANSWER Amps
Gas pipes are bonded to ground? - CORRECT ANSWER c) to prevent electrical
potential from pipe to ground
Air conditioning compressors and fan motor circuits should be protected by a -
CORRECT ANSWER time delay fuse
A fuse is designed to protect against - CORRECT ANSWER High amperage
The incoming power supply to a residential building is - CORRECT ANSWER
240/1/60
As the length of the conductor increase, it may be necessary to - CORRECT ANSWER
increase the wire size
When is it allowable to fuse a conductor with a higher rating than normal - CORRECT
ANSWER never
, When installing a conductor through steel wall studs, you must use - CORRECT
ANSWER Bx
All new homes(residential) must have - CORRECT ANSWER 100 amps service
An electrical schematic will show all controls - CORRECT ANSWER Normally De-
energized
A GFCI protects against ______. - CORRECT ANSWER Current flow to ground
A 240 Volts power supply for a stove is taken from? - CORRECT ANSWER The line
side of both branch breakers
When checking the voltage of a circuit and it is unknown, what scale on an analog
meter must
be used - CORRECT ANSWER 0-600V
The instrument used to determine the resistance of an electrical device is - CORRECT
ANSWER Ohmmeter
The instrument used to determine the potential difference is - CORRECT ANSWER
a) voltmeter
Voltmeters are connected - CORRECT ANSWER in parallel with the device being
checked
When using an ohmmeter, the most important thing to remember is - CORRECT
ANSWER isolate devices from the circuit
The source of the 24 volts on a standard residential furnace is? - CORRECT ANSWER
120V/24V step down transformer
The maximum open circuit test reading of a powerpile should be - CORRECT
ANSWER 750mV
The maximum open circuit test reading of a thermocouple should be - CORRECT
ANSWER 30mv
Powerpile systems are advantageous because they - CORRECT ANSWER Can
provide heat in case of power outage
The maximum recommended length of millivolt wiring when using #16 gauge wire is -
CORRECT ANSWER 50 feet
A noisy, lifting, blowing pilot flame indicates - CORRECT ANSWER High gas
pressure
EXAM DETAILED AND VERIFIED FOR GUARANTEED PASS- LATEST UPDATE 2025 GRADED A
Which tool is used to determine if the windings on an electric motor have shorted?
al Voltmeter
b Ammeter
) Ohmmeter
d) Wattmete - CORRECT ANSWER Ohmmeter
On an electrical schematic diagram, the safety controls are typically drawn:
a)To the right of the loads,
b)Above theloads,
c)Below the loads.
(d)To the left of theloads. - CORRECT ANSWER To the left of the loads.
Which of the following types of wire must b e used in d a m p locations?
a NMD
(b) NMw
c) LVT
d) BX - CORRECT ANSWER B) nmw
On an electrical schematic, all operating controls are drawn:
a) In their energized positions.
b) In their de-energizedpositions,
c) Normally closed,
(d) Normally open. - CORRECT ANSWER Normally open.
An inline ammeter si connected:
(a) In series with the device being checked,
b) In parallel with the device being checked.
c) With the system power off,
d) Across the load. - CORRECT ANSWER In series with the device being checked,
As the length of a conductor increases, the voltage drop along the conductor:
(a) increases,
b) Decreases.
c) Remains the same.
d) Should b e as flexible as possible. - CORRECT ANSWER increases
When a new appliance is to be installed in a typical residential basement and the
supply wiring to it si to be concealed, which of the following types of wire is acceptable,
a n d most cost effective: - CORRECT ANSWER NMD
120 volt power supply for a residential electrical circuit is taken ferm the:
a) l Line side of one branch circuit breaker and a ground lug.
,b) Load side of one main circuit breaker and the line side of a second breaker,
c) Load side of one main breaker and the load side of the second main breaker, (
D) a Load side of one branch circuit breaker and a neutral lug. - CORRECT ANSWER
Load side of one branch circuit breaker and a neutral lug.
Areceptacle mounted ground fault circuit interrupter protects against:
a)Appliance overloading.
b)Dead shorts.
c)Short circuits,
(d) Current flow to ground. - CORRECT ANSWER Current flow to ground.
17. An electrical pictorial diagramis used to:
(a) Show component location,
b) Indicate how the system works,
c) Indicate part numbers of the devices,
d) Determine wiring sizes for the appliance. - CORRECT ANSWER Show component
location,
The power supply to a residential gas furnace is: - CORRECT ANSWER 120/1/60
As gauge number of a conductor increases, its current carrying capacity: - CORRECT
ANSWER decreases
As more circuits are added to a panel, the total current drawn from the panel -
CORRECT ANSWER increases
A hard sharp pilot flame indicates - CORRECT ANSWER the orifice is too small
Direct current travels: - CORRECT ANSWER B) in one direction only
A receptacle-mounted ground fault interrupter protects against? - CORRECT ANSWER
Current flow to ground
On an electrical schematic, the system is shown with the: - CORRECT ANSWER
disconnect open with all devices as though there is no call for heating
The normal fuse size for #12 AWG copper wire is - CORRECT ANSWER B) 20 amps
A zero Ohmmeter reading taken between the casing of a Solenoid and a disconnected
Wire to the Solenoid indicates that - CORRECT ANSWER The coil is shorted to the
casing of the device
As the diameter of a conductor decreases, its resistance - CORRECT ANSWER
increases
,ground fault interrupter must be installed in - CORRECT ANSWER Bathrooms and
other wet location
A branch circuit fuse is determined by the - CORRECT ANSWER size of wire
How much of the thermocouple tip should be in the pilot flame? - CORRECT ANSWER
3/8" to 1/2"
breaker installed at the main panel protects: - CORRECT ANSWER Only the loads
served by that breaker
The current carrying capacity of a conductor__________as the gauge number
increases - CORRECT ANSWER decreases
An ammeter must be connected in_________with the circuit being tested - CORRECT
ANSWER series
Which of the following types of wire is approved for damp location installation: -
CORRECT ANSWER b) NMW
The maximum fuse size for #12 AWG copper wire is - CORRECT ANSWER 20 amps
A control switch for a forced warm air furnace can be installed in the neutral wire -
CORRECT ANSWER d) never
A gas filled plug type fuse may be used - CORRECT ANSWER once
A Building electrical supply is rated in - CORRECT ANSWER Amps
Gas pipes are bonded to ground? - CORRECT ANSWER c) to prevent electrical
potential from pipe to ground
Air conditioning compressors and fan motor circuits should be protected by a -
CORRECT ANSWER time delay fuse
A fuse is designed to protect against - CORRECT ANSWER High amperage
The incoming power supply to a residential building is - CORRECT ANSWER
240/1/60
As the length of the conductor increase, it may be necessary to - CORRECT ANSWER
increase the wire size
When is it allowable to fuse a conductor with a higher rating than normal - CORRECT
ANSWER never
, When installing a conductor through steel wall studs, you must use - CORRECT
ANSWER Bx
All new homes(residential) must have - CORRECT ANSWER 100 amps service
An electrical schematic will show all controls - CORRECT ANSWER Normally De-
energized
A GFCI protects against ______. - CORRECT ANSWER Current flow to ground
A 240 Volts power supply for a stove is taken from? - CORRECT ANSWER The line
side of both branch breakers
When checking the voltage of a circuit and it is unknown, what scale on an analog
meter must
be used - CORRECT ANSWER 0-600V
The instrument used to determine the resistance of an electrical device is - CORRECT
ANSWER Ohmmeter
The instrument used to determine the potential difference is - CORRECT ANSWER
a) voltmeter
Voltmeters are connected - CORRECT ANSWER in parallel with the device being
checked
When using an ohmmeter, the most important thing to remember is - CORRECT
ANSWER isolate devices from the circuit
The source of the 24 volts on a standard residential furnace is? - CORRECT ANSWER
120V/24V step down transformer
The maximum open circuit test reading of a powerpile should be - CORRECT
ANSWER 750mV
The maximum open circuit test reading of a thermocouple should be - CORRECT
ANSWER 30mv
Powerpile systems are advantageous because they - CORRECT ANSWER Can
provide heat in case of power outage
The maximum recommended length of millivolt wiring when using #16 gauge wire is -
CORRECT ANSWER 50 feet
A noisy, lifting, blowing pilot flame indicates - CORRECT ANSWER High gas
pressure
