NYC RADIO REPAIR MECHANIC EXAM PRACTICE QUESTIONS AND ANSWERS ALREADY
GRADED A+| 100% VERIFIED SOLUTIONS………...
Core Domains
Electronic Theory and Circuit Analysis
Radio Frequency (RF) Theory and Propagation
Transmitter and Receiver Circuitry
Antenna Systems and Transmission Lines
Diagnostic and Measurement Instrumentation
Component-Level Troubleshooting and Repair
Digital Communications and Modulation
NYC Municipal Radio Systems and P25 Standards
FCC Regulations and Compliance
Occupational Safety and Professional Standards
Introduction
The NYC Radio Repair Mechanic Exam Practice Test is designed to assess the comprehensive
knowledge and applied decision-making skills required of candidates seeking employment as Radio
Repair Mechanics with the City of New York. The examination evaluates competency across
electronic theory, RF propagation, transmitter and receiver circuitry, antenna systems, diagnostic
instrumentation, troubleshooting procedures, digital communications, NYC municipal radio
,systems, and FCC regulations. Candidates are tested on their ability to diagnose faults, interpret
schematics, perform precise measurements, and apply regulatory standards in real-world scenarios.
Through multiple-choice and scenario-based questions, the exam emphasizes critical thinking,
technical proficiency, and the professional responsibilities of maintaining critical public safety
communication infrastructure.
SECTION ONE: QUESTIONS 1–100
Question 1
Which law should a radio repair technician apply to calculate current when voltage and
resistance are known?
A. Kirchhoff's Law
🟢 B. Ohm's Law
C. Faraday's Law
D. Coulomb's Law
🔴 RATIONALE: Ohm's Law (I = V/R) relates voltage, current, and resistance, making it the
correct choice for calculating current when voltage and resistance are known.
Question 2
What is the primary function of a radio receiver?
A. Transmit signals to a base station
🟢 B. Select and demodulate incoming RF signals
,C. Amplify power for transmission
D. Convert AC to DC power
🔴 RATIONALE: The primary function of a radio receiver is to select a desired RF signal from the
electromagnetic spectrum and demodulate it to recover the original information.
Question 3
A technician measures 12 V across a resistor carrying 0.5 A of current. What is the resistance?
A. 6 Ω
B. 12 Ω
🟢 C. 24 Ω
D. 48 Ω
🔴 RATIONALE: Using Ohm's Law, R = V / I = 12 V / 0.5 A = 24 Ω.
Question 4
What happens to current flow when an open circuit exists?
A. Current increases
🟢 B. Current stops completely
C. Current remains the same
D. Current oscillates
, 🔴 RATIONALE: An open circuit creates a break in the conductive path, stopping current flow
completely while voltage may still be present at certain points.
Question 5
What must be done before measuring resistance with a multimeter?
A. Increase voltage
🟢 B. Disconnect power to the circuit
C. Short the test leads together
D. Connect the meter in series
🔴 RATIONALE: Resistance measurements must be taken with circuit power disconnected, as
external voltages can damage the meter and produce inaccurate readings.
Question 6
What is the primary purpose of a capacitor in a radio circuit?
A. To amplify signals
🟢 B. To store electrical energy in an electric field
C. To resist current flow
D. To convert AC to DC
🔴 RATIONALE: A capacitor stores electrical energy in an electric field and is used for coupling,
filtering, and tuning in radio circuits.
GRADED A+| 100% VERIFIED SOLUTIONS………...
Core Domains
Electronic Theory and Circuit Analysis
Radio Frequency (RF) Theory and Propagation
Transmitter and Receiver Circuitry
Antenna Systems and Transmission Lines
Diagnostic and Measurement Instrumentation
Component-Level Troubleshooting and Repair
Digital Communications and Modulation
NYC Municipal Radio Systems and P25 Standards
FCC Regulations and Compliance
Occupational Safety and Professional Standards
Introduction
The NYC Radio Repair Mechanic Exam Practice Test is designed to assess the comprehensive
knowledge and applied decision-making skills required of candidates seeking employment as Radio
Repair Mechanics with the City of New York. The examination evaluates competency across
electronic theory, RF propagation, transmitter and receiver circuitry, antenna systems, diagnostic
instrumentation, troubleshooting procedures, digital communications, NYC municipal radio
,systems, and FCC regulations. Candidates are tested on their ability to diagnose faults, interpret
schematics, perform precise measurements, and apply regulatory standards in real-world scenarios.
Through multiple-choice and scenario-based questions, the exam emphasizes critical thinking,
technical proficiency, and the professional responsibilities of maintaining critical public safety
communication infrastructure.
SECTION ONE: QUESTIONS 1–100
Question 1
Which law should a radio repair technician apply to calculate current when voltage and
resistance are known?
A. Kirchhoff's Law
🟢 B. Ohm's Law
C. Faraday's Law
D. Coulomb's Law
🔴 RATIONALE: Ohm's Law (I = V/R) relates voltage, current, and resistance, making it the
correct choice for calculating current when voltage and resistance are known.
Question 2
What is the primary function of a radio receiver?
A. Transmit signals to a base station
🟢 B. Select and demodulate incoming RF signals
,C. Amplify power for transmission
D. Convert AC to DC power
🔴 RATIONALE: The primary function of a radio receiver is to select a desired RF signal from the
electromagnetic spectrum and demodulate it to recover the original information.
Question 3
A technician measures 12 V across a resistor carrying 0.5 A of current. What is the resistance?
A. 6 Ω
B. 12 Ω
🟢 C. 24 Ω
D. 48 Ω
🔴 RATIONALE: Using Ohm's Law, R = V / I = 12 V / 0.5 A = 24 Ω.
Question 4
What happens to current flow when an open circuit exists?
A. Current increases
🟢 B. Current stops completely
C. Current remains the same
D. Current oscillates
, 🔴 RATIONALE: An open circuit creates a break in the conductive path, stopping current flow
completely while voltage may still be present at certain points.
Question 5
What must be done before measuring resistance with a multimeter?
A. Increase voltage
🟢 B. Disconnect power to the circuit
C. Short the test leads together
D. Connect the meter in series
🔴 RATIONALE: Resistance measurements must be taken with circuit power disconnected, as
external voltages can damage the meter and produce inaccurate readings.
Question 6
What is the primary purpose of a capacitor in a radio circuit?
A. To amplify signals
🟢 B. To store electrical energy in an electric field
C. To resist current flow
D. To convert AC to DC
🔴 RATIONALE: A capacitor stores electrical energy in an electric field and is used for coupling,
filtering, and tuning in radio circuits.
