Practice Exam

T7A05

1. What is the name of a circuit that generates a signal at a specific frequency?

• A. Reactance modulator
• B. Phase modulator
• C. Oscillator
• D. Low-pass filter

T7C03

2. What does a dummy load consist of?

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

T0B05

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

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

T1E08

4. Which of the following is an example of automatic control?

• A. Using a computer or other device to send CW automatically
• B. Repeater operation
• C. Controlling a station over the internet
• D. Using a computer or other device to identify automatically

T2C11

5. What is meant by "check" in a radiogram header?

• A. A list of stations that have relayed the message
• B. A box on the message form that indicates that the message was received and/or relayed
• C. The call sign of the originating station
• D. The number of words or word equivalents in the text portion of the message

T0A12

6. Which of the following precautions should be taken when measuring high voltages with a voltmeter?

• A. Ensure that the circuit is grounded through the voltmeter
• B. Ensure that the voltmeter is set to the correct frequency
• C. Ensure that the voltmeter has very low impedance
• D. Ensure that the voltmeter and leads are rated for use at the voltages to be measured

T3C06

7. 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. D region refraction
• D. Faraday rotation

T5D14

8. In which type of circuit is voltage the same across all components?

• A. Resonant
• B. Branch
• C. Parallel
• D. Series

T9B06

9. Which of the following RF connector types is most suitable for frequencies above 400 MHz?

• A. UHF (PL-259/SO-239)
• B. Type N
• C. DB-25
• D. RS-213

T1A01

10. Which of the following is part of the Basis and Purpose of the Amateur Radio Service?

• A. Providing personal radio communications for as many citizens as possible
• B. Providing communications for international non-profit organizations
• C. Advancing skills in the technical and communication phases of the radio art
• D. All these choices are correct

T8D12

11. Which of the following best describes an amateur radio mesh network?

• A. A wide-bandwidth digital voice mode employing DMR protocols
• B. A satellite communications network using modified commercial satellite TV hardware
• C. An internet linking protocol used to network repeaters
• D. An amateur-radio based data network using commercial Wi-Fi equipment with modified firmware

T1B07

12. Which of the following VHF/UHF band segments are limited to CW only?

• A. 902.0 MHz to 902.1 MHz
• B. 219 MHz to 220 MHz and 420.0 MHz to 420.1 MHz
• C. All these choices are correct
• D. 50.0 MHz to 50.1 MHz and 144.0 MHz to 144.1 MHz

T2A12

13. What should you do before calling CQ?

• A. Listen first to be sure that no one else is using the frequency
• B. Ask if the frequency is in use
• C. Make sure you are authorized to use that frequency
• D. All these choices are correct

T1C01

14. For which license classes are new licenses currently available from the FCC?

• A. Technician, General, Amateur Extra
• B. Novice, Technician, General, Amateur Extra
• C. Technician, Technician Plus, General, Amateur Extra
• D. Novice, Technician Plus, General, Advanced

T1D03

15. When is it permissible to transmit messages encoded to obscure their meaning?

• A. Only when transmitting control commands to space stations or radio control craft
• B. Never
• C. Only during contests
• D. Only when transmitting certain approved digital codes

T0C06

16. Which of the following is an acceptable method to determine whether your station complies with FCC RF exposure regulations?

• A. By calculation based on FCC OET Bulletin 65
• B. By calculation based on computer modeling
• C. By measurement of field strength using calibrated equipment
• D. All these choices are correct

T6B09

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

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

T6C04

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

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

T8C06

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

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

T5B08

20. Which is equal to 1,000,000 picofarads?

• A. 1000 microfarads
• B. 1 microfarad
• C. 1,000,000,000 microfarads
• D. 0.001 microfarads

T4A01

21. Which of the following is an appropriate power supply rating for a typical 50 watt output mobile FM transceiver?

• A. 24.0 volts at 4 amperes
• B. 24.0 volts at 12 amperes
• C. 13.8 volts at 12 amperes
• D. 13.8 volts at 4 amperes

T6A07

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

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

T8B06

23. Which of the following are inputs to a satellite tracking program?

• A. All these choices are correct
• B. The Keplerian elements
• C. The satellite transmitted power
• D. The last observed time of zero Doppler shift

T3A12

24. What is the effect of fog and rain on signals in the 10 meter and 6 meter bands?

• A. Deflection
• B. Absorption
• C. Range increase
• D. There is little effect

T2B02

25. What term describes the use of a sub-audible tone transmitted along with normal voice audio to open the squelch of a receiver?

• A. DTMF
• B. Tone burst
• C. Carrier squelch
• D. CTCSS

T5C06

26. 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. The resonant frequency of a tuned circuit
• D. Reflective force in antenna transmission lines

T4B10

27. Which of the following receiver filter bandwidths provides the best signal-to-noise ratio for SSB reception?

• A. 2400 Hz
• B. 500 Hz
• C. 1000 Hz
• D. 5000 Hz

T5A11

28. What type of current flow is opposed by resistance?

• A. All these choices are correct
• B. Alternating current
• C. RF current
• D. Direct current

T9A03

29. Which of the following describes a simple dipole oriented parallel to Earth's surface?

• A. A vertically polarized antenna
• B. A travelling-wave antenna
• C. A horizontally polarized antenna
• D. A ground-wave antenna

T1F03

30. When are you required to transmit your assigned call sign?

• A. At least once during each transmission
• B. At least every 15 minutes during and at the end of a communication
• C. At the beginning of each contact, and every 10 minutes thereafter
• D. At least every 10 minutes during and at the end of a communication

T3B03

31. What are the two components of a radio wave?

• A. Electric and magnetic fields
• B. Voltage and current
• C. Ionizing and non-ionizing radiation
• D. Impedance and reactance

T7D08

32. Which of the following types of solder should not be used for radio and electronic applications?

• A. Acid-core solder
• B. Rosin-core solder
• C. Tin-copper solder
• D. Lead-tin solder

T6D02

33. What is a relay?

• A. An inverting amplifier
• B. An electrically-controlled switch
• C. A pass transistor
• D. A current controlled amplifier

T7B09

34. What should be the first step to resolve non-fiber optic cable TV interference caused by your amateur radio transmission?

• A. Be sure all TV feed line coaxial connectors are installed properly
• B. Add a low-pass filter to the TV antenna input
• C. Add a high-pass filter to the TV antenna input
• D. Add a preamplifier to the TV antenna input

T8A12

35. Which of the following is a disadvantage of FM compared with single sideband?

• A. FM signals are harder to tune
• B. Voice quality is poorer
• C. All these choices are correct
• D. Only one signal can be received at a time