Connecticut (CT) L-6 Limited Electrical Journeyperson (Low Voltage) Practice Exam
Connecticut (CT) L-6 Limited Electrical Journeyperson (Low Voltage) Practice Exam
Connecticut (CT) L-6 Limited Electrical Journeyperson (Low Voltage) Practice Exam
Connecticut (CT) L-6 Limited Electrical Journeyperson (Low Voltage) Practice Exam
Connecticut (CT) L-6 Limited Electrical Journeyperson (Low Voltage) Practice Exam
Connecticut (CT) L-6 Limited Electrical Journeyperson (Low Voltage) Practice Exam
Mostly Tested Exam Coverage Areas (Based on Connecticut L-6 Exam Content
Outline):
1. Fire Alarm Systems – initiating devices, notification appliances, control panels, and
NFPA 72 fundamentals 11
2. Security & Intrusion Systems – sensors, zones, EOL resistors, and control panel
programming 4
3. Audio & Sound Systems – speaker impedance, amplifier matching, and distributed
line calculations 6
, 4. Video Systems – CCTV cameras, coax/UTP transmission, and power supply
considerations
5. Access Control Systems – credential readers, electric strikes, REX devices, and fail-
safe vs. fail-secure
6. NEC Article 725 – Class 1, Class 2, and Class 3 power-limited circuits 6 11
7. NEC Article 760 – Fire alarm system wiring methods and cable ratings 11
8. NEC Article 800 – Communications circuits, cable substitutions, and separation
requirements 6 11
9. Connecticut L-6 Scope of Work – voltage/current limits, prohibited
telecommunications work, and contractor employment rules 1
10. General Low-Voltage Safety & Testing – grounding, bonding, multimeter usage, and
OSHA best practices 3
250 Randomized Practice Questions
,1. A low-voltage technician is installing a Class 2 circuit for a thermostat control and
needs to verify the maximum allowable voltage under normal operating conditions.
According to the NEC, what is the highest voltage permitted for a Class 2 circuit?
A. 12 volts
B. 24 volts
C. 30 volts
D. 48 volts
Correct Answer: C
Rationale: Class 2 circuits are inherently power-limited and restricted to a maximum of
30 volts to minimize fire and shock hazards under Article 725.
2. While terminating a Category 6 data cable in a commercial building, the electrician
must ensure the bend radius is not exceeded to prevent signal degradation. What is the
generally accepted minimum bend radius for a standard UTP cable?
A. One times the cable diameter
B. Two times the cable diameter
C. Four times the cable diameter
D. Ten times the cable diameter
Correct Answer: C
, Rationale: Exceeding a four-times-diameter bend radius can distort the twist geometry
of the pairs, leading to crosstalk and return loss failures.
3. A technician employed by an L-5 limited contractor is asked to repair a broken
telephone line inside a residential unit. Based on the Connecticut L-6 scope of work,
which statement is accurate?
A. The L-6 may repair the telephone line if the voltage is under 25 volts
B. The L-6 is prohibited from repairing telecommunication work except for specific
alarm interface wiring
C. The L-6 may repair the line only if supervised by an E-1 unlimited contractor
D. The L-6 may repair the line because it is considered low voltage
Correct Answer: B
Rationale: Connecticut regulations explicitly exclude general telecommunication repair
from the L-6 scope, allowing only the interface wiring from an alarm panel to an
existing telephone connection for monitoring.
4. During the installation of a fire alarm initiating device circuit, the technician
measures the circuit resistance and finds it is excessively high. What is the primary
operational risk associated with excessive resistance on an IDC?
Connecticut (CT) L-6 Limited Electrical Journeyperson (Low Voltage) Practice Exam
Connecticut (CT) L-6 Limited Electrical Journeyperson (Low Voltage) Practice Exam
Connecticut (CT) L-6 Limited Electrical Journeyperson (Low Voltage) Practice Exam
Connecticut (CT) L-6 Limited Electrical Journeyperson (Low Voltage) Practice Exam
Connecticut (CT) L-6 Limited Electrical Journeyperson (Low Voltage) Practice Exam
Mostly Tested Exam Coverage Areas (Based on Connecticut L-6 Exam Content
Outline):
1. Fire Alarm Systems – initiating devices, notification appliances, control panels, and
NFPA 72 fundamentals 11
2. Security & Intrusion Systems – sensors, zones, EOL resistors, and control panel
programming 4
3. Audio & Sound Systems – speaker impedance, amplifier matching, and distributed
line calculations 6
, 4. Video Systems – CCTV cameras, coax/UTP transmission, and power supply
considerations
5. Access Control Systems – credential readers, electric strikes, REX devices, and fail-
safe vs. fail-secure
6. NEC Article 725 – Class 1, Class 2, and Class 3 power-limited circuits 6 11
7. NEC Article 760 – Fire alarm system wiring methods and cable ratings 11
8. NEC Article 800 – Communications circuits, cable substitutions, and separation
requirements 6 11
9. Connecticut L-6 Scope of Work – voltage/current limits, prohibited
telecommunications work, and contractor employment rules 1
10. General Low-Voltage Safety & Testing – grounding, bonding, multimeter usage, and
OSHA best practices 3
250 Randomized Practice Questions
,1. A low-voltage technician is installing a Class 2 circuit for a thermostat control and
needs to verify the maximum allowable voltage under normal operating conditions.
According to the NEC, what is the highest voltage permitted for a Class 2 circuit?
A. 12 volts
B. 24 volts
C. 30 volts
D. 48 volts
Correct Answer: C
Rationale: Class 2 circuits are inherently power-limited and restricted to a maximum of
30 volts to minimize fire and shock hazards under Article 725.
2. While terminating a Category 6 data cable in a commercial building, the electrician
must ensure the bend radius is not exceeded to prevent signal degradation. What is the
generally accepted minimum bend radius for a standard UTP cable?
A. One times the cable diameter
B. Two times the cable diameter
C. Four times the cable diameter
D. Ten times the cable diameter
Correct Answer: C
, Rationale: Exceeding a four-times-diameter bend radius can distort the twist geometry
of the pairs, leading to crosstalk and return loss failures.
3. A technician employed by an L-5 limited contractor is asked to repair a broken
telephone line inside a residential unit. Based on the Connecticut L-6 scope of work,
which statement is accurate?
A. The L-6 may repair the telephone line if the voltage is under 25 volts
B. The L-6 is prohibited from repairing telecommunication work except for specific
alarm interface wiring
C. The L-6 may repair the line only if supervised by an E-1 unlimited contractor
D. The L-6 may repair the line because it is considered low voltage
Correct Answer: B
Rationale: Connecticut regulations explicitly exclude general telecommunication repair
from the L-6 scope, allowing only the interface wiring from an alarm panel to an
existing telephone connection for monitoring.
4. During the installation of a fire alarm initiating device circuit, the technician
measures the circuit resistance and finds it is excessively high. What is the primary
operational risk associated with excessive resistance on an IDC?
