Practice Exam

G1E05

1. What are the restrictions on messages sent to a third party in a country with which there is a Third-Party Agreement?

• A. They must be for other licensed amateurs
• B. The message must be limited to no longer than 1 minute in duration and the name of the third party must be recorded in the station log
• C. They must relate to amateur radio, or remarks of a personal character, or messages relating to emergencies or disaster relief
• D. They must relate to emergencies or disaster relief

G5C02

2. What is the output voltage if an input signal is applied to the secondary winding of a 4:1 voltage step-down transformer instead of the primary winding?

• A. The input voltage is multiplied by 4
• B. The input voltage is divided by 4
• C. Additional resistance must be added in series with the primary to prevent overload
• D. Additional resistance must be added in parallel with the secondary to prevent overload

G3A12

3. What does the K-index measure?

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

G8A07

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

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

G3B11

5. What happens to HF propagation when the LUF exceeds the MUF?

• A. Propagation via ordinary skywave communications is not possible over that path
• B. HF communications over the path are enhanced
• C. Double-hop propagation along the path is more common
• D. Propagation over the path on all HF frequencies is enhanced

G5B09

6. What is the RMS voltage of a sine wave with a value of 17 volts peak?

• A. 12 volts
• B. 24 volts
• C. 8.5 volts
• D. 34 volts

G9A02

7. 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. There is no relationship between transmission line loss and SWR
• D. High SWR increases loss in a lossy transmission line

G8B10

8. What is the relationship between transmitted symbol rate and bandwidth?

• A. Bandwidth is half the symbol rate
• B. Lower symbol rates require wider bandwidth
• C. Higher symbol rates require wider bandwidth
• D. Symbol rate and bandwidth are not related

G9C03

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

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

G2E12

10. Which of the following describes Winlink?

• A. A form of Packet Radio
• B. An amateur radio wireless network to send and receive email on the internet
• C. A wireless network capable of both VHF and HF band operation
• D. All of the above

G9D05

11. What is an advantage of vertically stacking horizontally polarized Yagi antennas?

• A. It narrows the main lobe in azimuth
• B. It narrows the main lobe in elevation
• C. It allows simultaneous vertical and horizontal polarization
• D. It allows quick selection of vertical or horizontal polarization

G1A09

12. Which of the following frequencies is within the General class portion of the 15-meter band?

• A. 18155 kHz
• B. 14250 kHz
• C. 21300 kHz
• D. 24900 kHz

G6A12

13. What is the primary purpose of a screen grid in a vacuum tube?

• A. To reduce grid-to-plate capacitance
• B. To increase the control grid resistance
• C. To increase efficiency
• D. To decrease plate resistance

G4B08

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

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

G2A08

15. What is the recommended way to break into a phone contact?

• A. Say "Breaker Breaker"
• B. Say "QRZ" several times, followed by your call sign
• C. Say "CQ" followed by the call sign of either station
• D. Say your call sign once

G8C02

16. Which digital mode is used as a low-power beacon for assessing HF propagation?

• A. WSPR
• B. MFSK16
• C. PSK31
• D. SSB-SC

G2D05

17. Which of the following indicates that you are looking for an HF contact with any station?

• A. Repeat "CQ" a few times, followed by "this is," then your call sign a few times, then pause to listen, repeat as necessary
• B. Sign your call sign once, followed by the words "listening for a call" -- if no answer, change frequency and repeat
• C. Transmit an unmodulated carried for approximately 10 seconds, followed by "this is" and your call sign, and pause to listen -- repeat as necessary
• D. Say "QTC" followed by "this is" and your call sign -- if no answer, change frequency and repeat

G1B04

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

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

G0A12

19. What stations are subject to the FCC rules on RF exposure?

• A. Only stations with antennas lower than one wavelength above the ground
• B. All commercial stations; amateur radio stations are exempt
• C. Only stations transmitting more than 500 watts PEP
• D. All stations with a time-averaged transmission of more than one milliwatt

G1C11

20. What measurement is specified by FCC rules that regulate maximum power?

• A. RMS output from the transmitter
• B. PEP output from the transmitter
• C. RMS input to the antenna
• D. PEP input to the antenna

G7A01

21. What is the function of a power supply bleeder resistor?

• A. It eliminates ground loop current
• B. It acts as a fuse for excess voltage
• C. It discharges the filter capacitors when power is removed
• D. It removes shock hazards from the induction coils

G9B10

22. What is the approximate length for a 1/2 wave dipole antenna cut for 14.250 MHz?

• A. 24 feet
• B. 16 feet
• C. 8 feet
• D. 33 feet

G7B04

23. In a Class A amplifier, what percentage of the time does the amplifying device conduct?

• A. More than 50% but less than 100%
• B. Less than 50%
• C. 100%
• D. 50%

G6B05

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

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

G4C12

25. Why must all metal enclosures of station equipment be grounded?

• A. It prevents a blown fuse in the event of an internal short circuit
• B. It ensures that hazardous voltages cannot appear on the chassis
• C. It prevents signal overload
• D. It ensures that the neutral wire is grounded

G2C07

26. When sending CW, what does a "C" mean when added to the RST report?

• A. Key clicks
• B. Chirpy or unstable signal
• C. 100 percent copy
• D. Report was read from an S meter rather than estimated

G5A04

27. Which of the following is opposition to the flow of alternating current in a capacitor?

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

G2B10

28. Which of the following is good amateur practice for net management?

• A. Transmit the full net roster at the beginning of every session
• B. Always use multiple sets of phonetics during check-in
• C. Have a backup frequency in case of interference or poor conditions
• D. All these choices are correct

G1D10

29. What is the minimum age that one must be to qualify as an accredited Volunteer Examiner?

• A. There is no age limit
• B. 18 years
• C. 21 years
• D. 16 years

G3C05

30. Why is long-distance communication on the 40-, 60-, 80-, and 160-meter bands more difficult during the day?

• A. The F region is unstable during daylight hours
• B. The E region is unstable during daylight hours
• C. The D region absorbs signals at these frequencies during daylight hours
• D. The F region absorbs signals at these frequencies during daylight hours

G4D02

31. How does a speech processor affect a single sideband phone signal?

• A. It increases peak power
• B. It reduces harmonic distortion
• C. It increases average power
• D. It reduces intermodulation distortion

G4A08

32. What is the correct adjustment for the LOAD or COUPLING control of a vacuum tube RF power amplifier?

• A. Minimum plate current without exceeding maximum allowable grid current
• B. Desired power output without exceeding maximum allowable plate current
• C. Minimum SWR on the antenna
• D. Highest plate voltage while minimizing grid current

G0B04

33. Where should the station's lightning protection ground system be located?

• A. As close to the station equipment as possible
• B. Outside the building
• C. Next to the closest power pole
• D. Parallel to the water supply line

G7C12

34. What is the frequency above which a low-pass filter's output power is less than half the input power?

• A. Notch frequency
• B. Cutoff frequency
• C. Neper frequency
• D. Rolloff frequency

G4E09

35. What is the approximate open-circuit voltage from a fully illuminated silicon photovoltaic cell?

• A. 1.38 VDC
• B. 0.5 VDC
• C. 0.2 VDC
• D. 0.02 VDC