Practice Exam

G2E06

1. What is the most common frequency shift for RTTY emissions in the amateur HF bands?

• A. 425 Hz
• B. 170 Hz
• C. 85 Hz
• D. 850 Hz

G1D07

2. Volunteer Examiners are accredited by what organization?

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

G1B04

3. Which of the following transmissions is permitted for all amateur stations?

• A. Occasional retransmission of weather and propagation forecast information from US government stations
• B. Encrypted messages, if not intended to facilitate a criminal act
• C. Automatic retransmission of other amateur signals by any amateur station
• D. Unidentified transmissions of less than 10 seconds duration for test purposes only

G2B02

4. What is the first thing you should do if you are communicating with another amateur station and hear a station in distress break in?

• A. Acknowledge the station in distress and determine what assistance may be needed
• B. Inform your local emergency coordinator
• C. Immediately decrease power to avoid interfering with the station in distress
• D. Immediately cease all transmissions

G9D01

5. Which of the following antenna types will be most effective as a near vertical incidence skywave (NVIS) antenna for short-skip communications on 40 meters during the day?

• A. A vertical antenna placed between 1/4 and 1/2 wavelength above the ground
• B. A horizontal dipole placed at approximately 1/2 wavelength above the ground
• C. A horizontal dipole placed between 1/10 and 1/4 wavelength above the ground
• D. A vertical dipole placed at approximately 1/2 wavelength above the ground

G4E07

6. Which of the following may cause receive interference to an HF transceiver installed in a vehicle?

• A. The control computers
• B. The battery charging system
• C. All these choices are correct
• D. The fuel delivery system

G2D08

7. 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 FCC requires a log of all international contacts
• D. The log provides evidence of operation needed to renew a license without retest

G5A07

8. What is the term for the inverse of impedance?

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

G3C10

9. What is near vertical incidence skywave (NVIS) propagation?

• A. Short distance MF or HF propagation at high elevation angles
• B. Double hop propagation near the LUF
• C. Long path HF propagation at sunrise and sunset
• D. Propagation near the MUF

G8C01

10. On what band do amateurs share channels with the unlicensed Wi-Fi service?

• A. 2.4 GHz
• B. 432 MHz
• C. 902 MHz
• D. 10.7 GHz

G7A13

11. Which symbol in Figure G7-1 represents a tapped inductor?

• A. Symbol 11
• B. Symbol 1
• C. Symbol 6
• D. Symbol 7

G0A09

12. What type of instrument can be used to accurately measure an RF field strength?

• A. A receiver with digital signal processing (DSP) noise reduction
• B. An SWR meter with a peak-reading function
• C. A calibrated field strength meter with a calibrated antenna
• D. An oscilloscope with a high-stability crystal marker generator

G6A01

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

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

G8A09

14. What type of modulation is used by FT8?

• A. 8-bit direct sequence spread spectrum
• B. Vestigial sideband
• C. 8-tone frequency shift keying
• D. Amplitude compressed AM

G1A05

15. On which of the following frequencies are General class licensees prohibited from operating as control operator?

• A. All of the above
• B. 21.275 MHz to 21.300 MHz
• C. 28.000 MHz to 28.025 MHz
• D. 7.125 MHz to 7.175 MHz

G4A10

16. What is the function of an electronic keyer?

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

G1C05

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

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

G4D06

18. How much change in signal strength is typically represented by one S unit?

• A. 18 dB
• B. 15 dB
• C. 12 dB
• D. 6 dB

G2A01

19. Which mode is most commonly used for voice communications on frequencies of 14 MHz or higher?

• A. Double sideband
• B. Suppressed sideband
• C. Lower sideband
• D. Upper sideband

G9B12

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

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

G1E06

21. The frequency allocations of which ITU region apply to radio amateurs operating in North and South America?

• A. Region 4
• B. Region 2
• C. Region 3
• D. Region 1

G5C09

22. What is the capacitance of three 100-microfarad capacitors connected in series?

• A. 300 microfarads
• B. 3.0 microfarads
• C. 0.33 microfarads
• D. 33.3 microfarads

G9A02

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

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

G5B06

24. What is the PEP produced by 200 volts peak-to-peak across a 50-ohm dummy load?

• A. 1.4 watts
• B. 353.5 watts
• C. 100 watts
• D. 400 watts

G3B03

25. Which frequency will have the least attenuation for long-distance skip propagation?

• A. Just above the LUF
• B. Just below the MUF
• C. Just above the critical frequency
• D. Just below the critical frequency

G9C03

26. How do the lengths of a three-element Yagi reflector and director compare to that of the driven element?

• A. They are all the same length
• B. The reflector is shorter, and the director is longer
• C. The reflector is longer, and the director is shorter
• D. Relative length depends on the frequency of operation

G3A11

27. How long does it take a coronal mass ejection to affect radio propagation on Earth?

• A. 14 days
• B. 4 to 8 minutes
• C. 28 days
• D. 15 hours to several days

G0B10

28. Which of the following is a danger from lead-tin solder?

• A. High voltages can cause lead-tin solder to disintegrate suddenly
• B. Lead can contaminate food if hands are not washed carefully after handling the solder
• C. Tin in the solder can "cold flow," causing shorts in the circuit
• D. RF energy can convert the lead into a poisonous gas

G7C02

29. What output is produced by a balanced modulator?

• A. Audio extracted from the modulation signal
• B. Audio with equalized frequency response
• C. Double-sideband modulated RF
• D. Frequency modulated RF

G8B08

30. Why is it important to know the duty cycle of the mode you are using when transmitting?

• A. Some modes have high duty cycles that could exceed the transmitter's average power rating
• B. To allow time for the other station to break in during a transmission
• C. To prevent overmodulation
• D. To aid in tuning your transmitter

G2C09

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

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

G4B08

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

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

G6B07

33. Which of the following describes a type N connector?

• A. A moisture-resistant RF connector useful to 10 GHz
• B. A nickel plated version of the PL-259
• C. A small bayonet connector used for data circuits
• D. A low noise figure VHF connector

G7B06

34. What is a shift register?

• A. A digital mixer
• B. An analog mixer
• C. A clocked array of circuits that passes data in steps along the array
• D. An array of operational amplifiers used for tri-state arithmetic operations

G4C02

35. Which of the following could be a cause of interference covering a wide range of frequencies?

• A. Arcing at a poor electrical connection
• B. Not using a balun or line isolator to feed balanced antennas
• C. Lack of rectification of the transmitter's signal in power conductors
• D. Using a balun to feed an unbalanced antenna