Connecticut (CT) T-2 Limited Electrical Journeyperson (Telephone) Practice Exam
100 Questions | Based on Connecticut Electrical Code & T-2 Scope Regulations
According to Connecticut General Statutes, what is the scope of work allowed under a T-2
Limited Electrical Journeyperson (Telephone) license?
a) All low voltage systems up to 50 volts
b) Telephone and data communication systems only
c) Any electrical system under 100 volts
d) Telecommunications and fire alarm systems
ANSWER: b) Telephone and data communication systems only
EXPLANATION: T-2 license specifically limits work to telephone and data communication
systems installation and maintenance.
What is the minimum age requirement for a T-2 license in Connecticut?
a) 18 years
b) 21 years
c) 25 years
d) No minimum age
ANSWER: a) 18 years
EXPLANATION: Applicants must be at least 18 years old to apply for a T-2 license.
According to Connecticut Electrical Code, what is the maximum voltage allowed for
telephone circuits?
a) 30 volts
b) 50 volts
c) 90 volts
d) 150 volts
,ANSWER: c) 90 volts
EXPLANATION: Telephone circuits are typically limited to 90 volts for ringing signals.
Which NEC article primarily covers telephone installations?
a) Article 250
b) Article 300
c) Article 725
d) Article 800
ANSWER: d) Article 800
EXPLANATION: NEC Article 800 covers communication circuits including telephone
systems.
What is the required minimum experience for a T-2 license applicant?
a) 1 year
b) 2 years
c) 4 years
d) 6 years
ANSWER: b) 2 years
EXPLANATION: Connecticut requires 2 years of practical experience under a licensed
contractor.
According to Connecticut regulations, who must supervise a T-2 licensee?
a) No supervision required
b) Licensed electrical contractor
c) Master electrician
d) Building inspector
ANSWER: b) Licensed electrical contractor
,EXPLANATION: T-2 licensees must work under the supervision of a licensed electrical
contractor.
What is the purpose of a "demarcation point" in telephone installations?
a) Where power enters the building
b) Boundary between carrier and customer wiring
c) Main distribution frame location
d) Point where cables enter conduit
ANSWER: b) Boundary between carrier and customer wiring
EXPLANATION: The demarc separates telephone company responsibility from customer
responsibility.
According to NEC 800.110, what type of grounding is required for telephone protectors?
a) Separate grounding electrode
b) Grounded to building steel
c) Grounded to AC system grounding electrode
d) No grounding required
ANSWER: c) Grounded to AC system grounding electrode
EXPLANATION: Telephone protectors must be grounded to the AC system grounding
electrode.
What is the standard DC voltage supplied to telephone lines from the central office?
a) -24V DC
b) -48V DC
c) -90V DC
d) -130V DC
ANSWER: b) -48V DC
, EXPLANATION: Central offices typically supply -48V DC for telephone operation.
Which connector type is standard for telephone handset connections?
a) RJ11
b) RJ45
c) BNC
d) F-connector
ANSWER: a) RJ11
EXPLANATION: RJ11 connectors are standard for telephone handset connections.
According to Connecticut code, what is the minimum separation between telephone
cables and electrical conductors over 600V?
a) 2 inches
b) 6 inches
c) 12 inches
d) 24 inches
ANSWER: c) 12 inches
EXPLANATION: Minimum 12-inch separation from conductors over 600V.
What does "POTS" stand for in telephone terminology?
a) Primary Office Telephone Service
b) Plain Old Telephone Service
c) Public Operator Telephone System
d) Private Office Telephone Service
ANSWER: b) Plain Old Telephone Service
EXPLANATION: POTS refers to traditional analog telephone service.
100 Questions | Based on Connecticut Electrical Code & T-2 Scope Regulations
According to Connecticut General Statutes, what is the scope of work allowed under a T-2
Limited Electrical Journeyperson (Telephone) license?
a) All low voltage systems up to 50 volts
b) Telephone and data communication systems only
c) Any electrical system under 100 volts
d) Telecommunications and fire alarm systems
ANSWER: b) Telephone and data communication systems only
EXPLANATION: T-2 license specifically limits work to telephone and data communication
systems installation and maintenance.
What is the minimum age requirement for a T-2 license in Connecticut?
a) 18 years
b) 21 years
c) 25 years
d) No minimum age
ANSWER: a) 18 years
EXPLANATION: Applicants must be at least 18 years old to apply for a T-2 license.
According to Connecticut Electrical Code, what is the maximum voltage allowed for
telephone circuits?
a) 30 volts
b) 50 volts
c) 90 volts
d) 150 volts
,ANSWER: c) 90 volts
EXPLANATION: Telephone circuits are typically limited to 90 volts for ringing signals.
Which NEC article primarily covers telephone installations?
a) Article 250
b) Article 300
c) Article 725
d) Article 800
ANSWER: d) Article 800
EXPLANATION: NEC Article 800 covers communication circuits including telephone
systems.
What is the required minimum experience for a T-2 license applicant?
a) 1 year
b) 2 years
c) 4 years
d) 6 years
ANSWER: b) 2 years
EXPLANATION: Connecticut requires 2 years of practical experience under a licensed
contractor.
According to Connecticut regulations, who must supervise a T-2 licensee?
a) No supervision required
b) Licensed electrical contractor
c) Master electrician
d) Building inspector
ANSWER: b) Licensed electrical contractor
,EXPLANATION: T-2 licensees must work under the supervision of a licensed electrical
contractor.
What is the purpose of a "demarcation point" in telephone installations?
a) Where power enters the building
b) Boundary between carrier and customer wiring
c) Main distribution frame location
d) Point where cables enter conduit
ANSWER: b) Boundary between carrier and customer wiring
EXPLANATION: The demarc separates telephone company responsibility from customer
responsibility.
According to NEC 800.110, what type of grounding is required for telephone protectors?
a) Separate grounding electrode
b) Grounded to building steel
c) Grounded to AC system grounding electrode
d) No grounding required
ANSWER: c) Grounded to AC system grounding electrode
EXPLANATION: Telephone protectors must be grounded to the AC system grounding
electrode.
What is the standard DC voltage supplied to telephone lines from the central office?
a) -24V DC
b) -48V DC
c) -90V DC
d) -130V DC
ANSWER: b) -48V DC
, EXPLANATION: Central offices typically supply -48V DC for telephone operation.
Which connector type is standard for telephone handset connections?
a) RJ11
b) RJ45
c) BNC
d) F-connector
ANSWER: a) RJ11
EXPLANATION: RJ11 connectors are standard for telephone handset connections.
According to Connecticut code, what is the minimum separation between telephone
cables and electrical conductors over 600V?
a) 2 inches
b) 6 inches
c) 12 inches
d) 24 inches
ANSWER: c) 12 inches
EXPLANATION: Minimum 12-inch separation from conductors over 600V.
What does "POTS" stand for in telephone terminology?
a) Primary Office Telephone Service
b) Plain Old Telephone Service
c) Public Operator Telephone System
d) Private Office Telephone Service
ANSWER: b) Plain Old Telephone Service
EXPLANATION: POTS refers to traditional analog telephone service.
