NYC Civil Service Electrician Exam 6048
Comprehensive Practice Questions And Well
Graded Solutions With Rationales Updated
2026-2027
Ace the 2026 NYC DCAS Electrician Civil Service Exam (No. 6048) with this premium study
guide. Features comprehensive multiple-choice practice questions with detailed rationales
covering the NYC Electrical Code, Ohm's law, circuit resistance, wiring methods, grounding,
overcurrent protection, and motor calculations. Perfect for candidates targeting municipal
electrical roles across NYC agencies. Boost your score, master core electrical theory, and land
on the active hiring list
Question 1
A circuit has a total resistance of 24 ohms and an applied voltage of 120 volts. What
is the current flowing through this circuit?
A) 0.2 amperes
B) 2.4 amperes
C) 5.0 amperes
D) 2,880 amperes
Question 2
Three resistors valued at 10 ohms, 20 ohms, and 30 ohms are connected in a series
configuration. What is the total resistance of the circuit?
A) 5.45 ohms
B) 10 ohms
C) 30 ohms
D) 60 ohms
Question 3
What is the total resistance of two 12-ohm resistors connected in a parallel
configuration?
A) 6 ohms
B) 12 ohms
C) 24 ohms
D) 144 ohms
Question 4
An industrial appliance consumes 2,400 watts of power when connected to a 120-
volt line. How much current does the appliance draw?
A) 0.05 amperes
B) 20 amperes
,C) 50 amperes
D) 288 amperes
Question 5
If the voltage across a fixed resistor is doubled, what happens to the current flowing
through that resistor?
A) The current is cut in half
B) The current remains exactly the same
C) The current doubles
D) The current quadruples
Question 6
What is the frequency of standard alternating current (AC) electricity supplied by
utilities in the United States?
A) 25 Hertz
B) 50 Hertz
C) 60 Hertz
D) 120 Hertz
Question 7
Which of the following terms describes the total opposition to current flow in an
alternating current (AC) circuit, combining resistance and reactance?
A) Ampacity
B) Conductance
C) Impedance
D) Inductance
Question 8
A transformer has 400 turns on its primary coil and 100 turns on its secondary coil. If
120 volts AC is applied to the primary, what is the output voltage on the secondary?
A) 30 volts
B) 60 volts
C) 480 volts
D) 4,000 volts
Question 9
What unit of measurement is used to express the apparent power in an AC electrical
system?
A) Kilowatts (kW)
B) Volt-Amperes (VA)
C) Ohms (
,)
D) Horsepower (HP)
Question 10
Which type of electrical circuit configuration provides more than one continuous path
for current to flow from the power source?
A) Series circuit
B) Parallel circuit
C) Open circuit
D) Short circuit
Section 2: NYC Electrical Code, Wiring Methods, and Materials
Question 11
According to general wiring standards, what is the maximum number of 90-degree
bends allowed between pull points in a single run of rigid metal conduit (RMC)?
A) Two bends
B) Three bends
C) Four bends
D) Five bends
Question 12
Which of the following wire sizes represents the largest conductor diameter?
A) 14 AWG
B) 10 AWG
C) 3 AWG
D) 1/0 AWG
Question 13
What is the standard color used to identify an insulated equipment grounding
conductor in a branch circuit?
A) Solid white
B) Solid black
C) Solid gray
D) Green or green with yellow stripes
Question 14
In a standard commercial branch circuit, what color must be used to identify the
grounded neutral conductor?
A) Red
B) Black
C) White or natural gray
D) Green
, Question 15
What is the minimum size copper conductor permitted for general wiring in branch
circuits operating under 600 volts?
A) 16 AWG
B) 14 AWG
C) 12 AWG
D) 10 AWG
Question 16
What type of enclosure must be installed at each conductor splice connection point
or switch location?
A) Condulet
B) Box or conduit body
C) Bushing
D) Coupling
Question 17
What is the maximum overcurrent protection device rating permitted for a standard
branch circuit utilizing 14 AWG copper conductors?
A) 15 amperes
B) 20 amperes
C) 25 amperes
D) 30 amperes
Question 18
Which of the following conduit types is completely banned from being used in
applications where it is subject to severe physical damage?
A) Rigid Metal Conduit (RMC)
B) Intermediate Metal Conduit (IMC)
C) Electrical Metallic Tubing (EMT)
D) Rigid Polyvinyl Chloride (PVC)
Question 19
When installing a raceway through an exterior wall, what must be done to prevent
moisture or cold air from entering the building interior through the raceway?
A) The raceway must be painted with water-resistant enamel
B) The raceway must be wrapped in rubber tape
C) The raceway must be sealed with an approved compound
D) The raceway must be grounded to a cold water pipe
Question 20
What is the minimum clear working space depth required in front of live electrical
equipment operating at 120 volts to ground?
Comprehensive Practice Questions And Well
Graded Solutions With Rationales Updated
2026-2027
Ace the 2026 NYC DCAS Electrician Civil Service Exam (No. 6048) with this premium study
guide. Features comprehensive multiple-choice practice questions with detailed rationales
covering the NYC Electrical Code, Ohm's law, circuit resistance, wiring methods, grounding,
overcurrent protection, and motor calculations. Perfect for candidates targeting municipal
electrical roles across NYC agencies. Boost your score, master core electrical theory, and land
on the active hiring list
Question 1
A circuit has a total resistance of 24 ohms and an applied voltage of 120 volts. What
is the current flowing through this circuit?
A) 0.2 amperes
B) 2.4 amperes
C) 5.0 amperes
D) 2,880 amperes
Question 2
Three resistors valued at 10 ohms, 20 ohms, and 30 ohms are connected in a series
configuration. What is the total resistance of the circuit?
A) 5.45 ohms
B) 10 ohms
C) 30 ohms
D) 60 ohms
Question 3
What is the total resistance of two 12-ohm resistors connected in a parallel
configuration?
A) 6 ohms
B) 12 ohms
C) 24 ohms
D) 144 ohms
Question 4
An industrial appliance consumes 2,400 watts of power when connected to a 120-
volt line. How much current does the appliance draw?
A) 0.05 amperes
B) 20 amperes
,C) 50 amperes
D) 288 amperes
Question 5
If the voltage across a fixed resistor is doubled, what happens to the current flowing
through that resistor?
A) The current is cut in half
B) The current remains exactly the same
C) The current doubles
D) The current quadruples
Question 6
What is the frequency of standard alternating current (AC) electricity supplied by
utilities in the United States?
A) 25 Hertz
B) 50 Hertz
C) 60 Hertz
D) 120 Hertz
Question 7
Which of the following terms describes the total opposition to current flow in an
alternating current (AC) circuit, combining resistance and reactance?
A) Ampacity
B) Conductance
C) Impedance
D) Inductance
Question 8
A transformer has 400 turns on its primary coil and 100 turns on its secondary coil. If
120 volts AC is applied to the primary, what is the output voltage on the secondary?
A) 30 volts
B) 60 volts
C) 480 volts
D) 4,000 volts
Question 9
What unit of measurement is used to express the apparent power in an AC electrical
system?
A) Kilowatts (kW)
B) Volt-Amperes (VA)
C) Ohms (
,)
D) Horsepower (HP)
Question 10
Which type of electrical circuit configuration provides more than one continuous path
for current to flow from the power source?
A) Series circuit
B) Parallel circuit
C) Open circuit
D) Short circuit
Section 2: NYC Electrical Code, Wiring Methods, and Materials
Question 11
According to general wiring standards, what is the maximum number of 90-degree
bends allowed between pull points in a single run of rigid metal conduit (RMC)?
A) Two bends
B) Three bends
C) Four bends
D) Five bends
Question 12
Which of the following wire sizes represents the largest conductor diameter?
A) 14 AWG
B) 10 AWG
C) 3 AWG
D) 1/0 AWG
Question 13
What is the standard color used to identify an insulated equipment grounding
conductor in a branch circuit?
A) Solid white
B) Solid black
C) Solid gray
D) Green or green with yellow stripes
Question 14
In a standard commercial branch circuit, what color must be used to identify the
grounded neutral conductor?
A) Red
B) Black
C) White or natural gray
D) Green
, Question 15
What is the minimum size copper conductor permitted for general wiring in branch
circuits operating under 600 volts?
A) 16 AWG
B) 14 AWG
C) 12 AWG
D) 10 AWG
Question 16
What type of enclosure must be installed at each conductor splice connection point
or switch location?
A) Condulet
B) Box or conduit body
C) Bushing
D) Coupling
Question 17
What is the maximum overcurrent protection device rating permitted for a standard
branch circuit utilizing 14 AWG copper conductors?
A) 15 amperes
B) 20 amperes
C) 25 amperes
D) 30 amperes
Question 18
Which of the following conduit types is completely banned from being used in
applications where it is subject to severe physical damage?
A) Rigid Metal Conduit (RMC)
B) Intermediate Metal Conduit (IMC)
C) Electrical Metallic Tubing (EMT)
D) Rigid Polyvinyl Chloride (PVC)
Question 19
When installing a raceway through an exterior wall, what must be done to prevent
moisture or cold air from entering the building interior through the raceway?
A) The raceway must be painted with water-resistant enamel
B) The raceway must be wrapped in rubber tape
C) The raceway must be sealed with an approved compound
D) The raceway must be grounded to a cold water pipe
Question 20
What is the minimum clear working space depth required in front of live electrical
equipment operating at 120 volts to ground?
