Practice Exam

G3C02

1. Where on Earth do ionospheric layers reach their maximum height?

• A. Where the sun is overhead
• B. Where the sun has just set
• C. Where the sun is on the opposite side of Earth
• D. Where the sun is rising

G5A04

2. Which of the following causes opposition to the flow of alternating current in a capacitor?

• A. Reactance
• B. Reluctance
• C. Admittance
• D. Conductance

G5C07

3. What is the turns ratio of a transformer used to match an audio amplifier having 600 ohm output impedance to a speaker having 4 ohm impedance?

• A. 300 to 1
• B. 150 to 1
• C. 12.2 to 1
• D. 24.4 to 1

G9C15

4. What is meant by the terms dBi and dBd when referring to antenna gain?

• A. dBi refers to an isotropic antenna, dBd refers to a dipole antenna
• B. dBi refers to an inverted-vee antenna, dBd refers to a downward reflecting antenna
• C. dBi refers to an ionospheric reflecting antenna, dBd refers to a dissipative antenna
• D. dBi refers to an isometric antenna, dBd refers to a discone antenna

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

G8C11

6. How are the two separate frequencies of a Frequency Shift Keyed (FSK) signal identified?

• A. Mark and space
• B. High and low
• C. On and off
• D. Dot and dash

G7B02

7. Which of these classes of amplifiers has the highest efficiency?

• A. Class AB
• B. Class A
• C. Class B
• D. Class C

G4A03

8. What is normally meant by operating a transceiver in "split" mode?

• A. The transceiver is operating from an external power source
• B. The transceiver is set to different transmit and receive frequencies
• C. The radio is operating at half power
• D. The transmitter is emitting an SSB signal, as opposed to DSB operation

G0A04

9. What does "time averaging" mean in reference to RF radiation exposure?

• A. The average time it takes RF radiation to have any long-term effect on the body
• B. The total time of the exposure
• C. The total RF exposure averaged over a certain time
• D. The average amount of power developed by the transmitter over a specific 24-hour period

G9B06

10. Where should the radial wires of a ground-mounted vertical antenna system be placed?

• A. At the center of the antenna
• B. Parallel to the antenna element
• C. As high as possible above the ground
• D. On the surface of the Earth or buried a few inches below the ground

G5B12

11. What would be the RMS voltage across a 50 ohm dummy load dissipating 1200 watts?

• A. 173 volts
• B. 346 volts
• C. 245 volts
• D. 692 volts

G3A10

12. What causes HF propagation conditions to vary periodically in a roughly 28-day cycle?

• A. The sun's rotation on its axis
• B. The position of the moon in its orbit
• C. Cyclic variation in Earth's radiation belts
• D. Long term oscillations in the upper atmosphere

G1A01

13. On which HF/MF bands is a General class license holder granted all amateur frequency privileges?

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

G2D07

14. Which of the following are examples of the NATO Phonetic Alphabet?

• A. America, Boston, Canada, Denmark
• B. Able, Baker, Charlie, Dog
• C. Alpha, Bravo, Charlie, Delta
• D. Adam, Boy, Charles, David

G6A07

15. What are the stable operating points for a bipolar transistor used as a switch in a logic circuit?

• A. Its enhancement and depletion modes
• B. Its peak and valley current points
• C. Its saturation and cutoff regions
• D. Its active region (between the cutoff and saturation regions)

G8B12

16. What process combines two signals in a non-linear circuit or connection to produce unwanted spurious outputs?

• A. Rolloff
• B. Detection
• C. Heterodyning
• D. Intermodulation

G6B02

17. What is meant by the term MMIC?

• A. Monolithic Microwave Integrated Circuit
• B. Mode Modulated Integrated Circuit
• C. Multi-Megabyte Integrated Circuit
• D. Military Manufactured Integrated Circuit

G2A05

18. Which mode of voice communication is most commonly used on the HF amateur bands?

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

G3B02

19. What factors affect the MUF?

• A. All these choices are correct
• B. Time of day and season
• C. Solar radiation and ionospheric disturbances
• D. Path distance and location

G4D08

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

G1C04

21. Which of the following limitations apply to transmitter power on every amateur band?

• A. Only the minimum power necessary to carry out the desired communications should be used
• B. Power must be limited to 200 watts when using data transmissions
• C. Effective radiated power cannot exceed 1500 watts
• D. Power should be limited as necessary to avoid interference to another radio service on the frequency

G1B01

22. What is the maximum height above ground to which an antenna structure may be erected without requiring notification to the FAA and registration with the FCC, provided it is not at or near a public use airport?

• A. 300 feet
• B. 100 feet
• C. 50 feet
• D. 200 feet

G1D11

23. What is required to obtain a new General Class license after a previously-held license has expired and the two-year grace period has passed?

• A. There are no requirements other than being able to show a copy of the expired license
• B. The applicant must pass the current Element 2 exam
• C. They must have a letter from the FCC showing they once held an amateur or commercial license
• D. The applicant must be able to produce a copy of a page from a call book published in the U.S. showing his or her name and address

G8A02

24. What is the name of the process that changes the phase angle of an RF signal to convey information?

• A. Phase transformation
• B. Phase modulation
• C. Phase convolution
• D. Phase inversion

G4C07

25. Why should soldered joints not be used with the wires that connect the base of a tower to a system of ground rods?

• A. Solder flux will prevent a low conductivity connection
• B. The resistance of solder is too high
• C. Solder has too high a dielectric constant to provide adequate lightning protection
• D. A soldered joint will likely be destroyed by the heat of a lightning strike

G2E14

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

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

G7C09

27. What is the phase difference between the I and Q signals that software-defined radio (SDR) equipment uses for modulation and demodulation?

• A. Zero
• B. 45 degrees
• C. 180 degrees
• D. 90 degrees

G4B10

28. Which of the following can be determined with a directional wattmeter?

• A. Antenna front-to-back ratio
• B. Standing wave ratio
• C. RF interference
• D. Radio wave propagation

G9D09

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

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

G2C10

30. What does the Q signal "QRN" mean?

• A. I am troubled by static
• B. Zero beat my signal
• C. Send more slowly
• D. Stop sending

G4E08

31. What is the name of the process by which sunlight is changed directly into electricity?

• A. Photosynthesis
• B. Photon decomposition
• C. Photovoltaic conversion
• D. Photon emission

G7A05

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

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

G0B14

33. What precaution should you take whenever you adjust or repair an antenna?

• A. Wear a radiation badge
• B. All these choices are correct
• C. Ensure that you and the antenna structure are grounded
• D. Turn off the transmitter and disconnect the feed line

G9A02

34. What are the typical characteristic impedances of coaxial cables used for antenna feed lines at amateur stations?

• A. 25 and 30 ohms
• B. 80 and 100 ohms
• C. 500 and 750 ohms
• D. 50 and 75 ohms

G2B07

35. Which of the following complies with good amateur practice when choosing a frequency on which to initiate a call?

• A. Follow the voluntary band plan for the operating mode you intend to use
• B. Check to see if the channel is assigned to another station
• C. All these choices are correct
• D. Identify your station by transmitting your call sign at least 3 times