Page 1 of 151
Rhode Island Telecommunications System Technician
(TST) license Exam ACTUAL EXAM COMPLETE 400
QUESTIONS AND VERIFIED SOLUTIONS LATEST UPDATE
THIS YEAR
Rhode Island Telecommunications System Technician (TST) license, you must be proficient in
low-voltage electrical theory, the National Electrical Code (NEC), cabling standards, and Rhode
Island-specific statutes.
Here is an overview of the exam coverage and the first batch of 100 questions.
Rhode Island TST Exam: Coverage Overview
The exam typically covers the following domains:
1. OSHA & Safety: Ladders, personal protective equipment (PPE), and job site safety.
2. Electrical Theory: Ohm’s Law, AC/DC theory, and series/parallel circuits.
3. The National Electrical Code (NEC): Primarily Articles 90, 100, 250 (Grounding), 725
(Class 1, 2, 3 circuits), and 800 (Communications).
4. Cabling Standards: TIA/EIA-568 standards, fiber optics, and coaxial cable.
5. Telephony & Data: VoIP, PBX systems, and networking protocols.
6. RI Laws & Rules: Title 5, Chapter 5-70 of the RI General Laws.
Batch 1: Questions 1–100
Question 1: What is the primary purpose of a "Drip Loop" in an aerial telecommunications
service entrance?
• A) To prevent birds from nesting
• B) To prevent water from entering the building through the cable
• C) To provide slack for thermal expansion
,Page 2 of 151
• D) To reduce signal interference
• Answer: B
• Rationale: A drip loop is a downward loop in the cable before it enters a building or
weather head, ensuring rain runs off the bottom of the loop rather than following the
cable into the structure.
Question 2: According to the NEC, what is the minimum separation required between
communications cables and lightning protection conductors?
• A) 2 feet
• B) 4 feet
• C) 6 feet
• D) 10 feet
• Answer: C
• Rationale: NEC 800.53 requires a 6-foot separation to prevent high-voltage arcing
during a lightning strike.
Question 3: Using Ohm's Law, if a circuit has a resistance of 20 Ohms and a current of 2 Amps,
what is the Voltage?
• A) 10 Volts
• B) 22 Volts
• C) 40 Volts
,Page 3 of 151
• D) 0.1 Volts
• Answer: C
• Rationale: $V = I \times R$. Therefore, $2A \times 20\Omega = 40V$.
Question 4: Which TIA/EIA standard defines the pinout for T568B?
• A) 1: White/Green, 2: Green
• B) 1: White/Orange, 2: Orange
• C) 1: Blue, 2: White/Blue
• Answer: B
• Rationale: T568B starts with the Orange pair on pins 1 and 2. T568A starts with the
Green pair.
Question 5: What type of fire extinguisher is required for electrical fires (including telecom
equipment)?
• A) Class A
• B) Class B
• C) Class C
• D) Class D
• Answer: C
, Page 4 of 151
• Rationale: Class C extinguishers use non-conductive agents (like $CO_2$) specifically for
energized electrical equipment.
Question 6: A "Plenum-rated" cable (CMP) is required when installing cable in:
• A) An outdoor conduit
• B) An air-handling space above a drop ceiling
• C) A vertical riser between floors
• D) A residential basement
• Answer: B
• Rationale: Plenum cable has low-smoke and low-flame characteristics to prevent toxic
fumes from traveling through HVAC systems during a fire.
Question 7: What is the maximum pull tension for a standard 4-pair UTP Category 6 cable?
• A) 10 lbs
• B) 25 lbs
• C) 50 lbs
• D) 100 lbs
• Answer: B
• Rationale: Exceeding 25 lbs of tension can stretch the twists in the pairs, causing the
cable to fail crosstalk tests.
Rhode Island Telecommunications System Technician
(TST) license Exam ACTUAL EXAM COMPLETE 400
QUESTIONS AND VERIFIED SOLUTIONS LATEST UPDATE
THIS YEAR
Rhode Island Telecommunications System Technician (TST) license, you must be proficient in
low-voltage electrical theory, the National Electrical Code (NEC), cabling standards, and Rhode
Island-specific statutes.
Here is an overview of the exam coverage and the first batch of 100 questions.
Rhode Island TST Exam: Coverage Overview
The exam typically covers the following domains:
1. OSHA & Safety: Ladders, personal protective equipment (PPE), and job site safety.
2. Electrical Theory: Ohm’s Law, AC/DC theory, and series/parallel circuits.
3. The National Electrical Code (NEC): Primarily Articles 90, 100, 250 (Grounding), 725
(Class 1, 2, 3 circuits), and 800 (Communications).
4. Cabling Standards: TIA/EIA-568 standards, fiber optics, and coaxial cable.
5. Telephony & Data: VoIP, PBX systems, and networking protocols.
6. RI Laws & Rules: Title 5, Chapter 5-70 of the RI General Laws.
Batch 1: Questions 1–100
Question 1: What is the primary purpose of a "Drip Loop" in an aerial telecommunications
service entrance?
• A) To prevent birds from nesting
• B) To prevent water from entering the building through the cable
• C) To provide slack for thermal expansion
,Page 2 of 151
• D) To reduce signal interference
• Answer: B
• Rationale: A drip loop is a downward loop in the cable before it enters a building or
weather head, ensuring rain runs off the bottom of the loop rather than following the
cable into the structure.
Question 2: According to the NEC, what is the minimum separation required between
communications cables and lightning protection conductors?
• A) 2 feet
• B) 4 feet
• C) 6 feet
• D) 10 feet
• Answer: C
• Rationale: NEC 800.53 requires a 6-foot separation to prevent high-voltage arcing
during a lightning strike.
Question 3: Using Ohm's Law, if a circuit has a resistance of 20 Ohms and a current of 2 Amps,
what is the Voltage?
• A) 10 Volts
• B) 22 Volts
• C) 40 Volts
,Page 3 of 151
• D) 0.1 Volts
• Answer: C
• Rationale: $V = I \times R$. Therefore, $2A \times 20\Omega = 40V$.
Question 4: Which TIA/EIA standard defines the pinout for T568B?
• A) 1: White/Green, 2: Green
• B) 1: White/Orange, 2: Orange
• C) 1: Blue, 2: White/Blue
• Answer: B
• Rationale: T568B starts with the Orange pair on pins 1 and 2. T568A starts with the
Green pair.
Question 5: What type of fire extinguisher is required for electrical fires (including telecom
equipment)?
• A) Class A
• B) Class B
• C) Class C
• D) Class D
• Answer: C
, Page 4 of 151
• Rationale: Class C extinguishers use non-conductive agents (like $CO_2$) specifically for
energized electrical equipment.
Question 6: A "Plenum-rated" cable (CMP) is required when installing cable in:
• A) An outdoor conduit
• B) An air-handling space above a drop ceiling
• C) A vertical riser between floors
• D) A residential basement
• Answer: B
• Rationale: Plenum cable has low-smoke and low-flame characteristics to prevent toxic
fumes from traveling through HVAC systems during a fire.
Question 7: What is the maximum pull tension for a standard 4-pair UTP Category 6 cable?
• A) 10 lbs
• B) 25 lbs
• C) 50 lbs
• D) 100 lbs
• Answer: B
• Rationale: Exceeding 25 lbs of tension can stretch the twists in the pairs, causing the
cable to fail crosstalk tests.
