Practice Exam

G3A12

1. What does the K-index measure?

• A. The short-term stability of Earth's geomagnetic field
• B. The solar radio flux at Boulder, Colorado
• C. The short-term stability of the Sun's magnetic field
• D. The relative position of sunspots on the surface of the Sun

G6A02

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

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

G2D08

3. Why do many amateurs keep a station log?

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

G6B05

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

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

G1E11

5. On what bands may automatically controlled stations transmitting RTTY or data emissions communicate with other automatically controlled digital stations?

• A. Only in the non-phone Extra Class segments of the bands
• B. Anywhere in the 6-meter or shorter wavelength bands, and in limited segments of some of the HF bands
• C. On any band segment where digital operation is permitted
• D. Anywhere in the non-phone segments of the 10-meter or shorter wavelength bands

G9D09

6. What is the primary use of a Beverage antenna?

• A. Directional transmitting for low HF bands
• B. Directional receiving for MF and low HF bands
• C. Portable direction finding at higher HF frequencies
• D. Portable direction finding at lower HF frequencies

G4D08

7. 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 7.184 MHz
• B. 7.1765 MHz to 7.1795 MHz
• C. 7.175 MHz to 7.178 MHz
• D. 7.178 MHz to 7.181 MHz

G4E08

8. In what configuration are the individual cells in a solar panel connected together?

• A. Full-wave bridge
• B. Shunt
• C. Bypass
• D. Series-parallel

G8B06

9. What is the total bandwidth of an FM phone transmission having 5 kHz deviation and 3 kHz modulating frequency?

• A. 5 kHz
• B. 3 kHz
• C. 16 kHz
• D. 8 kHz

G5B13

10. What is the output PEP of an unmodulated carrier if the average power is 1060 watts?

• A. 1060 watts
• B. 2120 watts
• C. 530 watts
• D. 1500 watts

G5C10

11. What is the inductance of three 10-millihenry inductors connected in parallel?

• A. 3.3 millihenries
• B. 30 millihenries
• C. 0.30 henries
• D. 3.3 henries

G4C10

12. What could be a symptom caused by a ground loop in your station's audio connections?

• A. The SWR reading for one or more antennas is suddenly very high
• B. An item of station equipment starts to draw excessive amounts of current
• C. You receive reports of "hum" on your station's transmitted signal
• D. You receive reports of harmonic interference from your station

G1D05

13. When operating a US station by remote control from outside the country, what license is required of the control operator?

• A. A US operator/primary station license
• B. A license from the foreign country and a special remote station permit from the FCC
• C. Only a license from the foreign country, as long as the call sign includes identification of portable operation in the US
• D. Only an appropriate US operator/primary license and a special remote station permit from the FCC

G0B01

14. Which wire or wires in a four-conductor 240 VAC circuit should be attached to fuses or circuit breakers?

• A. All wires
• B. Only the ground wire
• C. Only the neutral wire
• D. Only the hot wires

G2E03

15. What symptoms may result from other signals interfering with a PACTOR or VARA transmission?

• A. All these choices are correct
• B. Frequent retries or timeouts
• C. Failure to establish a connection between stations
• D. Long pauses in message transmission

G3C09

16. What type of propagation allows signals to be heard in the transmitting station's skip zone?

• A. Faraday rotation
• B. Scatter
• C. Chordal hop
• D. Short-path

G4A12

17. Which of the following is a common use of the dual-VFO feature on a transceiver?

• A. To improve frequency accuracy by allowing variable frequency output (VFO) operation
• B. To transmit on one frequency and listen on another
• C. To allow transmitting on two frequencies at once
• D. To permit full duplex operation -- that is, transmitting and receiving at the same time

G7A06

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

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

G9C05

19. What is the primary effect of increasing boom length and adding directors to a Yagi antenna?

• A. Front-to-back ratio decreases
• B. Gain increases
• C. Beamwidth increases
• D. Resonant frequency is lower

G8A07

20. Which of the following phone emissions uses the narrowest bandwidth?

• A. Frequency modulation
• B. Vestigial sideband
• C. Phase modulation
• D. Single sideband

G8C05

21. In an ARQ mode, what is meant by a NAK response to a transmitted packet?

• A. Entire file received correctly
• B. Request retransmission of the packet
• C. Packet was received without error
• D. Receiving station connected and ready for transmissions

G5A09

22. What unit is used to measure reactance?

• A. Ampere
• B. Siemens
• C. Ohm
• D. Farad

G2C02

23. What should you do if a CW station sends "QRS?"

• A. Repeat everything twice
• B. Change frequency
• C. Increase your power
• D. Send slower

G0A08

24. Which of the following steps must an amateur operator take to ensure compliance with RF safety regulations?

• A. Notify neighbors within a 100-foot radius of the antenna of the existence of the station and power levels
• B. Perform a routine RF exposure evaluation and prevent access to any identified high exposure areas
• C. Post a copy of FCC Part 97.13 in the station
• D. All these choices are correct

G4B08

25. What transmitter performance parameter does a two-tone test analyze?

• A. Percentage of suppression of the carrier and undesired sideband for SSB
• B. Linearity
• C. Percentage of carrier phase shift
• D. Percentage of frequency modulation

G9A08

26. If the SWR on an antenna feed line is 5:1, and a matching network at the transmitter end of the feed line is adjusted to present a 1:1 SWR to the transmitter, what is the resulting SWR on the feed line?

• A. 5:1
• B. Between 1:1 and 5:1 depending on the characteristic impedance of the line
• C. 1:1
• D. Between 1:1 and 5:1 depending on the reflected power at the transmitter

G7C08

27. Which parameter affects receiver sensitivity?

• A. Input amplifier noise figure
• B. Input amplifier gain
• C. All these choices are correct
• D. Demodulator stage bandwidth

G2A07

28. Which of the following statements is true of single sideband (SSB)?

• A. Only one sideband and the carrier are transmitted; the other sideband is suppressed
• B. Only one sideband is transmitted; the other sideband and carrier are suppressed
• C. SSB is the only voice mode authorized on the 20-, 15-, and 10-meter amateur bands
• D. SSB is the only voice mode authorized on the 160-, 75-, and 40-meter amateur bands

G7B10

29. Which of the following describes a linear amplifier?

• A. An amplifier in which the output preserves the input waveform
• B. An amplifier used as a frequency multiplier
• C. Any RF power amplifier used in conjunction with an amateur transceiver
• D. A Class C high efficiency amplifier

G3B05

30. How does the ionosphere affect radio waves with frequencies below the MUF and above the LUF?

• A. They are refracted and trapped in the ionosphere to circle Earth
• B. They pass through the ionosphere
• C. They are amplified by interaction with the ionosphere
• D. They are refracted back to Earth

G1B08

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

• A. 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
• B. When the contact is with amateurs in any country except those whose administrations have notified the ITU that they object to such communications
• C. Only when the foreign country has a formal third-party agreement filed with the FCC
• 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

G2B07

32. Which of the following complies with commonly accepted amateur practice when choosing a frequency on which to initiate a call?

• A. Follow the voluntary band plan
• B. Listen on the frequency for at least two minutes to be sure it is clear
• C. Identify your station by transmitting your call sign at least 3 times
• D. All these choices are correct

G9B12

33. What is the approximate length for a 1/4 wave monopole antenna cut for 28.5 MHz?

• A. 11 feet
• B. 16 feet
• C. 21 feet
• D. 8 feet

G1C05

34. What is the limit for transmitter power on the 28 MHz band for a General Class control operator?

• A. 100 watts PEP output
• B. 1500 watts PEP output
• C. 2000 watts PEP output
• D. 1000 watts PEP output

G1A01

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

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