Practice Exam

T3C06

1. What type of propagation is responsible for allowing over-the-horizon VHF and UHF communications to ranges of approximately 300 miles on a regular basis?

• A. F2 region refraction
• B. Tropospheric ducting
• C. Faraday rotation
• D. D region refraction

T6B09

2. What are the names for the electrodes of a diode?

• A. Anode and cathode
• B. Gate and base
• C. Plus and minus
• D. Source and drain

T8C11

3. What is an amateur radio station that connects other amateur stations to the internet?

• A. A gateway
• B. A repeater
• C. A beacon
• D. A digipeater

T1C05

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

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

T2A01

5. What is a common repeater frequency offset in the 2 meter band?

• A. Plus or minus 500 kHz
• B. Plus or minus 5 MHz
• C. Plus or minus 1 MHz
• D. Plus or minus 600 kHz

T8A10

6. What is the approximate bandwidth of AM fast-scan TV transmissions?

• A. About 6 MHz
• B. More than 10 MHz
• C. About 1 MHz
• D. About 3 MHz

T1F09

7. What type of amateur station simultaneously retransmits the signal of another amateur station on a different channel or channels?

• A. Earth station
• B. Message forwarding station
• C. Beacon station
• D. Repeater station

T1E09

8. Which of the following are required for remote control operation?

• A. The control operator must indirectly manipulate the controls
• B. The control operator must be at the control point
• C. A control operator is required at all times
• D. All these choices are correct

T0A07

9. Where should a lightning arrester be installed in a coaxial feed line?

• A. At the ac power service panel
• B. At the output connector of a transceiver
• C. On a grounded panel near where feed lines enter the building
• D. At the antenna feed point

T7C05

10. Why do most solid-state transmitters reduce output power as SWR increases beyond a certain level?

• A. Because power supplies cannot supply enough current at high SWR
• B. To protect the output amplifier transistors
• C. To lower the SWR on the transmission line
• D. To comply with FCC rules on spectral purity

T8B05

11. What is a satellite beacon?

• A. A reflective surface on the satellite
• B. An indicator light that shows where to point your antenna
• C. A transmission from a satellite that contains status information
• D. The primary transmit antenna on the satellite

T3B09

12. What frequency range is referred to as UHF?

• A. 300 to 3000 MHz
• B. 30 to 300 kHz
• C. 30 to 300 MHz
• D. 300 to 3000 kHz

T6C07

13. What is component 8 in figure T-2?

• A. Resistor
• B. Light emitting diode
• C. Regulator IC
• D. Inductor

T2C08

14. Which of the following is a characteristic of good traffic handling?

• A. Making decisions as to whether messages are worthy of relay or delivery
• B. Ensuring that any newsworthy messages are relayed to the news media
• C. All these choices are correct
• D. Passing messages exactly as received

T3A04

15. What happens when antennas at opposite ends of a VHF or UHF line of sight radio link are not using the same polarization?

• A. Received signal strength is reduced
• B. The modulation sidebands might become inverted
• C. Nothing significant will happen
• D. Signals have an echo effect

T7A11

16. Where is an RF preamplifier installed?

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

T6D05

17. What type of circuit controls the amount of voltage from a power supply?

• A. Phase inverter
• B. Oscillator
• C. Filter
• D. Regulator

T5B01

18. How many milliamperes is 1.5 amperes?

• A. 150 milliamperes
• B. 1500 milliamperes
• C. 15,000 milliamperes
• D. 15 milliamperes

T0C12

19. How does RF radiation differ from ionizing radiation (radioactivity)?

• A. RF radiation can only be detected with an RF dosimeter
• B. RF radiation does not have sufficient energy to cause chemical changes in cells and damage DNA
• C. RF radiation is limited in range to a few feet
• D. RF radiation is perfectly safe

T7D10

20. What reading indicates that an ohmmeter is connected across a large, discharged capacitor?

• A. Steady full-scale reading
• B. Alternating between open and short circuit
• C. Decreasing resistance with time
• D. Increasing resistance with time

T5C06

21. What does the abbreviation "RF" mean?

• A. Radio frequency signals of all types
• B. The real frequency transmitted as opposed to the apparent frequency
• C. Reflective force in antenna transmission lines
• D. The resonant frequency of a tuned circuit

T5D03

22. What formula is used to calculate resistance in a circuit?

• A. R = E x I
• B. R = E + I
• C. R = E - I
• D. R = E / I

T0B05

23. What is the purpose of a safety wire through a turnbuckle used to tension guy lines?

• A. Provide a ground path for lightning strikes
• B. Prevent loosening of the turnbuckle from vibration
• C. Secure the guy line if the turnbuckle breaks
• D. Provide an ability to measure for proper tensioning

T9B05

24. What happens as the frequency of a signal in coaxial cable is increased?

• A. The loss increases
• B. The characteristic impedance decreases
• C. The loss decreases
• D. The characteristic impedance increases

T1B12

25. Except for some specific restrictions, what is the maximum peak envelope power output for Technician class operators using frequencies above 30 MHz?

• A. 1500 watts
• B. 500 watts
• C. 50 watts
• D. 100 watts

T8D08

26. Which of the following is included in packet radio transmissions?

• A. All these choices are correct
• B. A header that contains the call sign of the station to which the information is being sent
• C. A check sum that permits error detection
• D. Automatic repeat request in case of error

T4B03

27. How is squelch adjusted so that a weak FM signal can be heard?

• A. Enable squelch enhancement
• B. Set the squelch threshold so that receiver output audio is on all the time
• C. Turn on the anti-squelch function
• D. Turn up the audio level until it overcomes the squelch threshold

T9A12

28. What is an advantage of a 5/8 wavelength whip antenna for VHF or UHF mobile service?

• A. It has 10 times the power gain of a 1/4 wavelength whip
• B. It eliminates distortion caused by reflected signals
• C. It has more gain than a 1/4-wavelength antenna
• D. It radiates at a very high angle

T2B10

29. Which Q signal indicates that you are receiving interference from other stations?

• A. QSB
• B. QRN
• C. QRM
• D. QTH

T5A10

30. Which term describes the rate at which electrical energy is used?

• A. Power
• B. Resistance
• C. Current
• D. Voltage

T4A03

31. Why are short, heavy-gauge wires used for a transceiver's DC power connection?

• A. To minimize voltage drop when transmitting
• B. To avoid RF interference
• C. To provide a good counterpoise for the antenna
• D. All these choices are correct

T6A01

32. What electrical component opposes the flow of current in a DC circuit?

• A. Resistor
• B. Inverter
• C. Transformer
• D. Inductor

T7B02

33. What would cause a broadcast AM or FM radio to receive an amateur radio transmission unintentionally?

• A. The receiver is unable to reject strong signals outside the AM or FM band
• B. The deviation of an FM transmitter is set too low
• C. The microphone gain of the transmitter is turned up too high
• D. The audio amplifier of the transmitter is overloaded

T1D06

34. What, if any, are the restrictions concerning transmission of language that may be considered indecent or obscene?

• A. The FCC maintains a list of words that are not permitted to be used on amateur frequencies
• B. Any such language is prohibited
• C. The ITU maintains a list of words that are not permitted to be used on amateur frequencies
• D. There is no such prohibition

T1A08

35. Which of the following entities recommends transmit/receive channels and other parameters for auxiliary and repeater stations?

• A. International Telecommunication Union
• B. Frequency Spectrum Manager appointed by the FCC
• C. Volunteer Frequency Coordinator recognized by local amateurs
• D. FCC Regional Field Office