Practice Exam

T9B12

1. What is standing wave ratio (SWR)?

• A. The transmitter efficiency ratio
• B. An indication of the quality of your station's ground connection
• C. The ratio of amplifier power output to input
• D. A measure of how well a load is matched to a transmission line

T6D04

2. Which of the following displays an electrical quantity as a numeric value?

• A. Relay
• B. Potentiometer
• C. Transistor
• D. Meter

T3C05

3. Which of the following effects may allow radio signals to travel beyond obstructions between the transmitting and receiving stations?

• A. Quantum tunneling
• B. Faraday rotation
• C. Doppler shift
• D. Knife-edge diffraction

T5A08

4. Which of the following is a good electrical insulator?

• A. Aluminum
• B. Copper
• C. Mercury
• D. Glass

T1C05

5. Which of the following is a valid Technician class call sign format?

• A. W1XX
• B. All these choices are correct
• C. KF1XXX
• D. KA1X

T0B03

6. Under what circumstances is it safe to climb a tower without a helper or observer?

• A. When no mechanical work is being performed
• B. When no electrical work is being performed
• C. When the work being done is not more than 20 feet above the ground
• D. Never

T2B11

7. Which Q signal indicates that you are changing frequency?

• A. QSL
• B. QSY
• C. QRU
• D. QRZ

T4B02

8. Which of the following can be used to enter a transceiver's operating frequency?

• A. The CTCSS or DTMF encoder
• B. All these choices are correct
• C. The keypad or VFO knob
• D. The Automatic Frequency Control

T5D08

9. What is the current through a 100-ohm resistor connected across 200 volts?

• A. 20,000 amperes
• B. 100 amperes
• C. 2 amperes
• D. 0.5 amperes

T6B12

10. What are the names of the electrodes of a bipolar junction transistor?

• A. Pole one, pole two, output
• B. Emitter, base, collector
• C. Input, output, supply
• D. Signal, bias, power

T5C09

11. How much power is delivered by a voltage of 13.8 volts DC and a current of 10 amperes?

• A. 23.8 watts
• B. 138 watts
• C. 0.7 watts
• D. 3.8 watts

T3A11

12. Which region of the atmosphere can refract or bend HF and VHF radio waves?

• A. The mesosphere
• B. The stratosphere
• C. The ionosphere
• D. The troposphere

T1E10

13. Which of the following is an example of remote control as defined in Part 97?

• A. Controlling a model aircraft, boat, or car by amateur radio
• B. All these choices are correct
• C. Operating the station over the internet
• D. Repeater operation

T0C04

14. What factors affect the RF exposure of people near an amateur station antenna?

• A. Distance from the antenna to a person
• B. Radiation pattern of the antenna
• C. All these choices are correct
• D. Frequency and power level of the RF field

T2C03

15. What technique is used to ensure that voice messages containing unusual words are received correctly?

• A. Speak very loudly into the microphone
• B. Send the words by voice and Morse code
• C. All these choices are correct
• D. Spell the words using a standard phonetic alphabet

T0A04

16. What is the purpose of a fuse in an electrical circuit?

• A. To limit current to prevent shocks
• B. All these choices are correct
• C. To prevent power supply ripple from damaging a component
• D. To remove power in case of overload

T8D04

17. What type of transmission is indicated by the term "NTSC?"

• A. An analog fast-scan color TV signal
• B. A special mode for satellite uplink
• C. A Normal Transmission mode in Static Circuit
• D. A frame compression scheme for TV signals

T7B10

18. What might be a problem if you receive a report that your audio signal through an FM repeater is distorted or unintelligible?

• A. You are in a bad location
• B. All these choices are correct
• C. Your transmitter is slightly off frequency
• D. Your batteries are running low

T1B11

19. What is the maximum peak envelope power output for Technician class operators in their HF band segments?

• A. 200 watts
• B. 50 watts
• C. 100 watts
• D. 10 watts

T1D10

20. How does the FCC define broadcasting for the Amateur Radio Service?

• A. Two-way transmissions by amateur stations
• B. Transmission of messages directed only to amateur operators
• C. Any transmission made by the licensed station
• D. Transmissions intended for reception by the general public

T7A11

21. Where is an RF preamplifier installed?

• A. Between the transmitter and the antenna tuner
• B. Between the antenna and receiver
• C. At the output of the receiver audio amplifier
• D. At the output of the transmitter power amplifier

T2A05

22. How should you respond to a station calling CQ?

• A. Transmit your call sign followed by the other station's call sign
• B. Transmit a signal report followed by your call sign
• C. Transmit the other station's call sign followed by your call sign
• D. Transmit "CQ" followed by the other station's call sign

T9A08

23. What is the approximate length, in inches, of a quarter-wavelength vertical antenna for 146 MHz?

• A. 19
• B. 50
• C. 12
• D. 112

T1F02

24. How often must you identify with your FCC-assigned call sign when using tactical call signs such as "Race Headquarters"?

• A. At the end of each communication and every ten minutes during a communication
• B. Once during every hour
• C. At the end of every transmission
• D. Never, the tactical call is sufficient

T8A05

25. Which of the following types of signal has the narrowest bandwidth?

• A. CW
• B. SSB voice
• C. Slow-scan TV
• D. FM voice

T8B09

26. What causes spin fading of satellite signals?

• A. Doppler shift of the received signal
• B. Rotation of the satellite and its antennas
• C. Circular polarized noise interference radiated from the sun
• D. Interfering signals within the satellite uplink band

T6C04

27. What is component 3 in figure T-1?

• A. Ground symbol
• B. Transistor
• C. Lamp
• D. Resistor

T7C03

28. What does a dummy load consist of?

• A. A non-inductive resistor mounted on a heat sink
• B. A low-voltage power supply and a DC relay
• C. A 50-ohm reactance used to terminate a transmission line
• D. A high-gain amplifier and a TR switch

T6A07

29. What electrical component is typically constructed as a coil of wire?

• A. Diode
• B. Switch
• C. Capacitor
• D. Inductor

T7D03

30. When configured to measure current, how is a multimeter connected to a component?

• A. In parallel
• B. In series
• C. In quadrature
• D. In phase

T5B07

31. Which is equal to 3.525 MHz?

• A. 3525 kHz
• B. 35.25 kHz
• C. 0.003525 kHz
• D. 3,525,000 kHz

T4A04

32. How are the transceiver audio input and output connected in a station configured to operate using FT8?

• A. To a computer running a terminal program and connected to a terminal node controller unit
• B. To an FT8 conversion unit, a keyboard, and a computer monitor
• C. To a computer connected to the FT8converter.com website
• D. To the audio input and output of a computer running WSJT-X software

T3B06

33. What is the formula for converting frequency to approximate wavelength in meters?

• A. Wavelength in meters equals frequency in hertz multiplied by 300
• B. Wavelength in meters equals frequency in megahertz divided by 300
• C. Wavelength in meters equals frequency in hertz divided by 300
• D. Wavelength in meters equals 300 divided by frequency in megahertz

T1A03

34. What do the FCC rules state regarding the use of a phonetic alphabet for station identification in the Amateur Radio Service?

• A. It is encouraged
• B. It is required when in contact with foreign stations
• C. All these choices are correct
• D. It is required when transmitting emergency messages

T8C06

35. How is over the air access to IRLP nodes accomplished?

• A. By obtaining a password that is sent via voice to the node
• B. By using DTMF signals
• C. By using CTCSS tone codes
• D. By entering the proper internet password