Practice Exam

T7A05

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

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

T6A04

2. What electrical component stores energy in an electric field?

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

T2C06

3. What is the Amateur Radio Emergency Service (ARES)?

• A. A training program that certifies amateur operators for membership in the Radio Amateur Civil Emergency Service
• B. A group of licensed amateurs who are members of the military and who voluntarily agreed to provide message handling services in the case of an emergency
• C. A training program that provides licensing courses for those interested in obtaining an amateur license to use during emergencies
• D. A group of licensed amateurs who have voluntarily registered their qualifications and equipment for communications duty in the public service

T5C06

4. What does the abbreviation "RF" mean?

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

T8A12

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

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

T9B04

6. What is the major function of an antenna tuner (antenna coupler)?

• A. It allows an antenna to be used on both transmit and receive
• B. It helps a receiver automatically tune in weak stations
• C. It automatically selects the proper antenna for the frequency band being used
• D. It matches the antenna system impedance to the transceiver's output impedance

T1E04

7. What determines the transmitting frequency privileges of an amateur station?

• A. The class of operator license held by the control operator
• B. The frequencies printed on the license grant
• C. The highest class of operator license held by anyone on the premises
• D. The frequency authorized by the frequency coordinator

T2B02

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

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

T5D09

9. What is the current through a 24-ohm resistor connected across 240 volts?

• A. 24,000 amperes
• B. 0.1 amperes
• C. 216 amperes
• D. 10 amperes

T0C07

10. What hazard is created by touching an antenna during a transmission?

• A. RF burn to skin
• B. All these choices are correct
• C. Radiation poisoning
• D. Electrocution

T5B02

11. Which is equal to 1,500,000 hertz?

• A. 150 kHz
• B. 15 GHz
• C. 1500 kHz
• D. 1500 MHz

T6D08

12. Which of the following is combined with an inductor to make a resonant circuit?

• A. Potentiometer
• B. Resistor
• C. Capacitor
• D. Zener diode

T1B03

13. Which frequency is in the 6 meter amateur band?

• A. 49.00 MHz
• B. 28.50 MHz
• C. 222.15 MHz
• D. 52.525 MHz

T0A06

14. What is a good way to guard against electrical shock at your station?

• A. Use three-wire cords and plugs for all AC powered equipment
• B. Install mechanical interlocks in high-voltage circuits
• C. Connect all AC powered station equipment to a common safety ground
• D. All these choices are correct

T4A06

15. What signals are used in a computer-radio interface for digital mode operation?

• A. Receive and transmit mode, status, and location
• B. Receive audio, transmit audio, and transmitter keying
• C. NMEA GPS location and DC power
• D. Antenna and RF power

T5A09

16. Which of the following describes alternating current?

• A. Current that alternates between positive and negative directions
• B. Current that alternates between a positive direction and zero
• C. All these answers are correct
• D. Current that alternates between a negative direction and zero

T1F09

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

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

T1A07

18. What is the FCC Part 97 definition of a space station?

• A. Any satellite orbiting Earth
• B. A manned satellite orbiting Earth
• C. An amateur station located more than 50 km above Earth's surface
• D. An amateur station using amateur radio satellites for relay of signals

T9A03

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

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

T6C09

20. What is component 4 in figure T-2?

• A. Transformer
• B. Variable inductor
• C. Potentiometer
• D. Double-pole switch

T8D06

21. What does the abbreviation "PSK" mean?

• A. Packet Short Keying
• B. Phased Slide Keying
• C. Pulse Shift Keying
• D. Phase Shift Keying

T8B08

22. What is meant by the statement that a satellite is operating in U/V mode?

• A. The satellite operates using ultraviolet frequencies
• B. The satellite uplink is in the 15 meter band and the downlink is in the 10 meter band
• C. The satellite uplink is in the 70 centimeter band and the downlink is in the 2 meter band
• D. The satellite frequencies are usually variable

T7D06

23. Which of the following can damage a multimeter?

• A. Not allowing it to warm up properly
• B. Attempting to measure voltage when using the resistance setting
• C. Attempting to measure resistance using the voltage setting
• D. Failing to connect one of the probes to ground

T7C06

24. What does an SWR reading of 4:1 indicate?

• A. Impedance mismatch
• B. Loss of -4 dB
• C. Gain of +4 dB
• D. Good impedance match

T8C09

25. Which of the following protocols enables an amateur station to transmit through a repeater without using a radio to initiate the transmission?

• A. DMR
• B. EchoLink
• C. D-STAR
• D. IRLP

T3C02

26. What is a characteristic of HF communication compared with communications on VHF and higher frequencies?

• A. Long-distance ionospheric propagation is far more common on HF
• B. HF accommodates wider bandwidth signals
• C. HF antennas are generally smaller
• D. There is less atmospheric interference (static) on HF

T6B08

27. What does the abbreviation FET stand for?

• A. Field Effect Transistor
• B. Frequency Emission Transmitter
• C. Fast Electron Transistor
• D. Free Electron Transmitter

T7B05

28. How can fundamental overload of a non-amateur radio or TV receiver by an amateur signal be reduced or eliminated?

• A. Block the amateur signal with a filter at the antenna input of the affected receiver
• B. Switch the transmitter from FM to SSB
• C. Block the interfering signal with a filter on the amateur transmitter
• D. Switch the transmitter to a narrow-band mode

T0B02

29. What is required when climbing an antenna tower?

• A. All these choices are correct
• B. Use appropriate tie-off to the tower at all times
• C. Have sufficient training on safe tower climbing techniques
• D. Always wear an approved climbing harness

T1C08

30. What is the normal term for an FCC-issued amateur radio license?

• A. Eight years
• B. Life
• C. Five years
• D. Ten years

T4B10

31. 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

T1D03

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

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

T3B02

33. What property of a radio wave defines its polarization?

• A. The ratio of the energy in the magnetic field to the energy in the electric field
• B. The ratio of the velocity to the wavelength
• C. The orientation of the magnetic field
• D. The orientation of the electric field

T3A09

34. Which of the following results from the fact that signals propagated by the ionosphere are elliptically polarized?

• A. Either vertically or horizontally polarized antennas may be used for transmission or reception
• B. Both the transmitting and receiving antennas must be of the same polarization
• C. Digital modes are unusable
• D. FM voice is unusable

T2A01

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

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