Practice Exam

G8A11

1. What is the modulation envelope of an AM signal?

• A. The bandwidth of the modulated signal
• B. Spurious signals that envelop nearby frequencies
• C. The waveform created by connecting the peak values of the modulated signal
• D. The carrier frequency that contains the signal

G3B06

2. What usually happens to radio waves with frequencies below the LUF?

• A. They are refracted and trapped in the ionosphere to circle Earth
• B. They pass through the ionosphere
• C. They are attenuated before reaching the destination
• D. They are refracted back to Earth

G6A02

3. What is an advantage of batteries with low internal resistance?

• A. High discharge current
• B. Long life
• C. High voltage
• D. Rapid recharge

G2E14

4. What could be wrong if you cannot decode an RTTY or other FSK signal even though it is apparently tuned in properly?

• A. You may have selected the wrong baud rate
• B. The mark and space frequencies may be reversed
• C. You may be listening on the wrong sideband
• D. All these choices are correct

G8C10

5. How does forward error correction (FEC) allow the receiver to correct data errors?

• A. By using the Varicode character set
• B. By transmitting redundant information with the data
• C. By controlling transmitter output power for optimum signal strength
• D. By using a parity bit with each character

G1E12

6. When may third-party messages be transmitted via remote control?

• A. Under any circumstances in which third party messages are permitted by FCC rules
• B. Only when the message is intended for third parties in areas where licensing is controlled by the FCC
• C. Only when the message is intended for licensed radio amateurs
• D. Under no circumstances except for emergencies

G5B01

7. What dB change represents a factor of two increase or decrease in power?

• A. Approximately 3 dB
• B. Approximately 2 dB
• C. Approximately 9 dB
• D. Approximately 6 dB

G5C06

8. What is the voltage output of a transformer with a 500-turn primary and a 1500-turn secondary when 120 VAC is applied to the primary?

• A. 120 volts
• B. 40 volts
• C. 25.5 volts
• D. 360 volts

G4D08

9. What frequency range is occupied by a 3 kHz LSB signal when the displayed carrier frequency is set to 7.178 MHz?

• A. 7.178 MHz to 7.181 MHz
• B. 7.178 MHz to 7.184 MHz
• C. 7.175 MHz to 7.178 MHz
• D. 7.1765 MHz to 7.1795 MHz

G1B08

10. When is it permissible to communicate with amateur stations in countries outside the areas administered by the Federal Communications Commission?

• A. Only when the foreign country has a formal third-party agreement filed with the FCC
• B. Only when the contact is with amateurs licensed by a country which is a member of the International Amateur Radio Union, or by a territory possessed by such a country
• C. When the contact is with amateurs in any country except those whose administrations have notified the ITU that they object to such communications
• D. Only when the contact is with amateurs licensed by a country which is a member of the United Nations, or by a territory possessed by such a country

G5A08

11. What is impedance?

• A. The product of current and reactance
• B. The ratio of voltage to current
• C. The product of current and voltage
• D. The ratio of current to voltage

G0B12

12. What is the purpose of a power supply interlock?

• A. To prevent unauthorized changes to the circuit that would void the manufacturer's warranty
• B. To ensure that dangerous voltages are removed if the cabinet is opened
• C. To shut down the unit if it becomes too hot
• D. To shut off the power supply if too much voltage is produced

G1C04

13. Which of the following is required by the FCC rules when operating in the 60-meter band?

• A. You must keep a record of all third-party traffic
• B. You must keep a record of the manufacturer of your equipment and the antenna used
• C. If you are using an antenna other than a dipole, you must keep a record of the gain of your antenna
• D. You must keep a record of the date, time, frequency, power level, and stations worked

G8B13

14. Which of the following is an odd-order intermodulation product of frequencies F1 and F2?

• A. 3F1-F2
• B. All these choices are correct
• C. 2F1-F2
• D. 5F1-3F2

G1D08

15. Which of the following criteria must be met for a non-US citizen to be an accredited Volunteer Examiner?

• A. The person's home citizenship must be in ITU region 2
• B. None of these choices is correct; a non-US citizen cannot be a Volunteer Examiner
• C. The person must be a resident of the US for a minimum of 5 years
• D. The person must hold an FCC granted amateur radio license of General class or above

G7C13

16. What term specifies a filter's maximum ability to reject signals outside its passband?

• A. Ultimate rejection
• B. Notch depth
• C. Rolloff
• D. Insertion loss

G4A10

17. What is the function of an electronic keyer?

• A. To allow time for switching the antenna from the receiver to the transmitter
• B. Automatic transmit/receive switching
• C. Automatic generation of dots and dashes for CW operation
• D. Computer interface for PSK and RTTY operation

G9D04

18. What is the primary function of antenna traps?

• A. To provide balanced feed point impedance
• B. To enable multiband operation
• C. To notch spurious frequencies
• D. To prevent out-of-band operation

G3A08

19. How can a geomagnetic storm affect HF propagation?

• A. Improve ground wave propagation
• B. Improve high-latitude HF propagation
• C. Degrade high-latitude HF propagation
• D. Degrade ground wave propagation

G2B11

20. How often may RACES training drills and tests be routinely conducted without special authorization?

• A. No more than 1 hour per week
• B. No more than 1 hour per month
• C. No more than 2 hours per week
• D. No more than 2 hours per month

G3C01

21. Which ionospheric region is closest to the surface of Earth?

• A. The E region
• B. The D region
• C. The F1 region
• D. The F2 region

G9A02

22. What is the relationship between high standing wave ratio (SWR) and transmission line loss?

• A. High SWR increases loss in a lossy transmission line
• B. High SWR makes it difficult to measure transmission line loss
• C. There is no relationship between transmission line loss and SWR
• D. High SWR reduces the relative effect of transmission line loss

G4E03

23. Which of the following direct, fused power connections would be the best for a 100-watt HF mobile installation?

• A. To the alternator or generator using heavy-gauge wire
• B. To the battery using insulated heavy duty balanced transmission line
• C. To the battery using heavy-gauge wire
• D. To the alternator or generator using insulated heavy duty balanced transmission line

G2D08

24. Why do many amateurs keep a station log?

• A. The FCC requires a log of all international contacts
• B. To help with a reply if the FCC requests information about your station
• C. The FCC requires a log of all international third-party traffic
• D. The log provides evidence of operation needed to renew a license without retest

G9B02

25. Which of the following is a common way to adjust the feed point impedance of an elevated quarter-wave ground-plane vertical antenna to be approximately 50 ohms?

• A. Coil the radials
• B. Slope the radials downward
• C. Slope the radials upward
• D. Lengthen the radials beyond one wavelength

G4B13

26. Which of the following can be measured with an antenna analyzer?

• A. Gain of a directional antenna
• B. Impedance of coaxial cable
• C. Power output from a transmitter
• D. Front-to-back ratio of an antenna

G0A03

27. How can you determine that your station complies with FCC RF exposure regulations?

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

G2A06

28. Which of the following is an advantage of using single sideband, as compared to other analog voice modes on the HF amateur bands?

• A. Ease of tuning on receive and immunity to impulse noise
• B. Very high-fidelity voice modulation
• C. Less bandwidth used and greater power efficiency
• D. Less subject to interference from atmospheric static crashes

G4C09

29. How can the effects of ground loops be minimized?

• A. Connect all ground conductors in series
• B. Bond equipment enclosures together
• C. Avoid using lock washers and star washers when making ground connections
• D. Connect the AC neutral conductor to the ground wire

G1A01

30. On which HF and/or MF amateur bands are there portions where General class licensees cannot transmit?

• A. 80 meters, 40 meters, 20 meters, and 15 meters
• B. 60 meters, 30 meters, 17 meters, and 12 meters
• C. 160 meters, 60 meters, 15 meters, and 12 meters
• D. 80 meters, 20 meters, 15 meters, and 10 meters

G9C01

31. Which of the following would increase the bandwidth of a Yagi antenna?

• A. Tapered-diameter elements
• B. Closer element spacing
• C. Loading coils in series with the element
• D. Larger-diameter elements

G7A05

32. What portion of the AC cycle is converted to DC by a half-wave rectifier?

• A. 180 degrees
• B. 90 degrees
• C. 270 degrees
• D. 360 degrees

G2C09

33. What does the Q signal "QSL" mean?

• A. Send slower
• B. We have already confirmed the contact
• C. I have received and understood
• D. We have worked before

G7B07

34. Which of the following are basic components of a sine wave oscillator?

• A. A frequency multiplier and a mixer
• B. A circulator and a filter operating in a feed-forward loop
• C. A filter and an amplifier operating in a feedback loop
• D. An amplifier and a divider

G6B05

35. What is an advantage of using a ferrite core toroidal inductor?

• A. Most of the magnetic field is contained in the core
• B. The magnetic properties of the core may be optimized for a specific range of frequencies
• C. Large values of inductance may be obtained
• D. All these choices are correct