Technician Exam Practice Questions And

Ohio Telecommunications Installer Technician Exam Practice Questions And Correct Answers (Verified Answers) Plus Rationales 2025|2026 Q&A | Instant Download Pdf

• Which of the following is the most important reason for using Personal

Protective Equipment (PPE) when installing telecommunications systems?

• To comply with OSHA regulations
• To prevent damage to tools
• To protect the installer from electrical hazards
• To reduce installation time

Rationale: PPE is primarily used to protect the installer from

electrical and physical hazards encountered on the job.

• What is the maximum voltage typically found on a standard residential

telephone line? 1 / 4

A. 120 V AC

B. 24 V DC

C. 48 V DC

D. 12 V AC

Rationale: Standard POTS (Plain Old Telephone Service) lines carry

approximately 48 volts DC when on-hook.

• In telecommunications wiring, what color pair is standard for the first

pair in a 25-pair cable?

• Blue/Red
• Blue/White
• Green/White
• Orange/White

Rationale: The first pair in a 25-pair cable uses the blue/white pair

according to the standard color code.

• When installing a network outlet, the cable should be terminated

with:

A. RJ11

B. RJ45

• LC connector
• SC connector

Rationale: Ethernet cabling typically uses RJ45 connectors for

termination. 2 / 4

• Which tool is used to remove insulation from twisted-pair cables

without damaging the conductor?

• Hammer
• Wire stripper
• Multimeter
• Crimper

Rationale: Wire strippers are designed to remove insulation while

leaving the conductor intact.

• What is the recommended maximum pulling tension for standard

Cat5e cable?

• 10 lbs
• 25 lbs
• 50 lbs
• 75 lbs

Rationale: Exceeding 50 lbs of pulling tension can damage the cable

and affect performance.

• A 66-block is typically used for terminating which type of cable?
• Fiber optic
• Coaxial
• Twisted pair telephone cables
• Ethernet patch cables

Rationale: 66-blocks are standard for telephone and low-voltage

twisted pair terminations. 3 / 4

8. The proper grounding method for a telecommunications system is to:

• Connect to any nearby metal pipe
• Connect to the building’s main grounding bus or earth ground
• Ground each device separately
• Use insulated grounding wires only

Rationale: Telecommunications systems must be bonded to the

building’s main grounding system to prevent electrical hazards.

• When testing a twisted-pair cable with a multimeter, you are primarily

checking for:

• Capacitance
• Inductance
• Continuity and shorts
• Voltage drop

Rationale: Continuity testing ensures that each conductor is properly

connected and not shorted.

• The FCC regulates telecommunications in the United States to

ensure:

• Free internet for all
• Lower cable installation costs
• Safe and standardized communication services
• Limited competition

Rationale: The FCC sets standards to ensure safe, efficient, and

standardized telecommunication services.

• / 4