Practice Exam

G7C04

1. What circuit is used to combine signals from the IF amplifier and BFO and send the result to the AF amplifier in a single-sideband receiver?

• A. Product detector
• B. Balanced modulator
• C. RF oscillator
• D. IF filter

G5C03

2. Which of the following components should be added to an existing resistor to increase the resistance?

• A. A capacitor in parallel
• B. A resistor in parallel
• C. A capacitor in series
• D. A resistor in series

G6C17

3. What is the general description of a DIN type connector?

• A. A DC power connector rated for currents between 30 and 50 amperes
• B. A family of multiple circuit connectors suitable for audio and control signals
• C. A special watertight connector for use in marine applications
• D. A special connector for microwave interfacing

G2A11

4. What does the expression "CQ DX" usually indicate?

• A. A distress call
• B. The caller is listening for a station in Germany
• C. The caller is looking for any station outside their own country
• D. A general call for any station

G6B14

5. What is the minimum allowable discharge voltage for maximum life of a standard 12 volt lead acid battery?

• A. 8.5 volts
• B. 10.5 volts
• C. 12 volts
• D. 6 volts

G3B06

6. What usually happens to radio waves with frequencies below the Lowest Usable Frequency (LUF)?

• A. They pass through the ionosphere
• B. They are bent and trapped in the ionosphere to circle the Earth
• C. They are bent back to the Earth
• D. They are completely absorbed by the ionosphere

G1A01

7. On which of the following bands is a General Class license holder granted all amateur frequency privileges?

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

G7B07

8. What are the basic components of virtually all sine wave oscillators?

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

G8B05

9. Why isn't frequency modulated (FM) phone used below 29.5 MHz?

• A. The transmitter efficiency for this mode is low
• B. The frequency stability would not be adequate
• C. Harmonics could not be attenuated to practical levels
• D. The wide bandwidth is prohibited by FCC rules

G1D07

10. Volunteer Examiners are accredited by what organization?

• A. The Federal Communications Commission
• B. The Wireless Telecommunications Bureau
• C. A Volunteer Examiner Coordinator
• D. The Universal Licensing System

G9A12

11. What would be the SWR if you feed a vertical antenna that has a 25-ohm feed-point impedance with 50-ohm coaxial cable?

• A. 2:1
• B. You cannot determine SWR from impedance values
• C. 1.25:1
• D. 2.5:1

G7A02

12. Which of the following components are used in a power-supply filter network?

• A. Transformers and transducers
• B. Diodes
• C. Capacitors and inductors
• D. Quartz crystals

G4B13

13. What is a use for an antenna analyzer other than measuring the SWR of an antenna system?

• A. Determining the impedance of an unknown or unmarked coaxial cable
• B. Determining the gain of a directional antenna
• C. Measuring the front to back ratio of an antenna
• D. Measuring the turns ratio of a power transformer

G9B07

14. How does the feed-point impedance of a 1/2 wave dipole antenna change as the antenna is lowered from 1/4 wave above ground?

• A. It peaks at about 1/8 wavelength above ground
• B. It is unaffected by the height above ground
• C. It steadily decreases
• D. It steadily increases

G4E01

15. What is a "capacitance hat", when referring to a mobile antenna?

• A. A device that allows automatic band-changing for a mobile antenna
• B. A device to electrically lengthen a physically short antenna
• C. A device that allows remote tuning of a mobile antenna
• D. A device to increase the power handling capacity of a mobile whip antenna

G2D08

16. Why do many amateurs keep a log even though the FCC doesn't require it?

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

G4D11

17. How close to the upper edge of the 20 meter General Class band should your displayed carrier frequency be when using 3 kHz wide USB?

• A. 3 kHz below the edge of the band
• B. Center your signal on the edge of the band
• C. Your displayed carrier frequency may be set at the edge of the band
• D. 3 kHz above the edge of the band

G4C07

18. What is one good way to avoid unwanted effects of stray RF energy in an amateur station?

• A. Connect all equipment grounds together
• B. Install an RF filter in series with the ground wire
• C. Use a ground loop for best conductivity
• D. Install a few ferrite beads on the ground wire where it connects to your station

G2B07

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

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

G5A04

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

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

G1E01

21. Which of the following would disqualify a third party from participating in stating a message over an amateur station?

• A. The third party is speaking in a language other than English, French, or Spanish
• B. The third party's amateur license had ever been revoked
• C. The third party is not a U.S. citizen
• D. The third party is a licensed amateur

G0A13

22. What precaution should be taken when installing a ground-mounted antenna?

• A. It should not be installed higher than you can reach
• B. It should limited to 10 feet in height
• C. It should be installed so no one can be exposed to RF radiation in excess of maximum permissible limits
• D. It should not be installed in a wet area

G0B09

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

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

G5B13

24. What is the output PEP of an unmodulated carrier if an average reading wattmeter connected to the transmitter output indicates 1060 watts?

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

G8A09

25. What control is typically adjusted for proper ALC setting on an amateur single sideband transceiver?

• A. Attenuator level
• B. Antenna inductance or capacitance
• C. Transmit audio or microphone gain
• D. The RF clipping level

G2C11

26. What does the Q signal "QRV" mean?

• A. You are sending too fast
• B. I am ready to receive messages
• C. I am quitting for the day
• D. There is interference on the frequency

G1B02

27. With which of the following conditions must beacon stations comply?

• A. A beacon station may not use automatic control
• B. There must be no more than one beacon signal in the same band from a single location
• C. The frequency must be posted on the Internet or published in a national periodical
• D. The frequency must be coordinated with the National Beacon Organization

G2E05

28. Which of the following describes Baudot code?

• A. A code using error detection and correction
• B. A code using SELCAL and LISTEN
• C. A 7-bit code, with start, stop and parity bits
• D. A 5-bit code, with additional start and stop bits

G3C07

29. What makes HF scatter signals often sound distorted?

• A. Ground waves are absorbing much of the signal
• B. The ionospheric layer involved is unstable
• C. Energy is scattered into the skip zone through several different radio wave paths
• D. The E-region is not present

G4A05

30. What is a purpose of using Automatic Level Control (ALC) with a RF power amplifier?

• A. To balance the transmitter audio frequency response
• B. To increase overall efficiency
• C. To reduce distortion due to excessive drive
• D. To reduce harmonic radiation

G3A02

31. What effect does a Sudden Ionospheric Disturbance have on the daytime ionospheric propagation of HF radio waves?

• A. It enhances propagation on all HF frequencies
• B. None, because only areas on the night side of the Earth are affected
• C. It disrupts signals on lower frequencies more than those on higher frequencies
• D. It disrupts communications via satellite more than direct communications

G1C03

32. What is the maximum bandwidth permitted by FCC rules for Amateur Radio stations when transmitting on USB frequencies in the 60 meter band?

• A. 5.6 kHz
• B. 3 kHz
• C. 1.8 kHz
• D. 2.8 kHz

G9D02

33. Which of the following is an advantage of an NVIS antenna?

• A. High forward gain
• B. All of these choices are correct
• C. High vertical angle radiation for working stations within a radius of a few hundred kilometers
• D. Low vertical angle radiation for working stations out to ranges of several thousand kilometers

G6A03

34. Which of the following is an advantage of ceramic capacitors as compared to other types of capacitors?

• A. High stability
• B. Tight tolerance
• C. High capacitance for given volume
• D. Comparatively low cost

G9C09

35. What is the approximate maximum theoretical forward gain of a three element, single-band Yagi antenna?

• A. 5.4 times the gain of a dipole
• B. 9.7 dBd
• C. All of these choices are correct
• D. 9.7 dBi