Practice Exam

G8B03

1. What is another term for the mixing of two RF signals?

• A. Synthesizing
• B. Phase inversion
• C. Heterodyning
• D. Frequency inversion

G7C10

2. What is an advantage of using I-Q modulation with software-defined radios (SDRs)?

• A. Minimum detectible signal level is reduced
• B. All types of modulation can be created with appropriate processing
• C. Automatic conversion of the signal from digital to analog
• D. The need for high resolution analog-to-digital converters is eliminated

G8C07

3. Which of the following narrow-band digital modes can receive signals with very low signal-to-noise ratios?

• A. MSK144
• B. FT8
• C. AMTOR
• D. MFSK32

G3C04

4. What does the term "critical angle" mean, as applied to radio wave propagation?

• A. The long path azimuth of a distant station
• B. The highest takeoff angle that will return a radio wave to Earth under specific ionospheric conditions
• C. The short path azimuth of a distant station
• D. The lowest takeoff angle that will return a radio wave to Earth under specific ionospheric conditions

G3B07

5. What does LUF stand for?

• A. The Lowest Usable Frequency for communications between two specific points
• B. Lowest Usable Frequency during the past 60 minutes
• C. The Lowest Usable Frequency during a 24-hour period
• D. Lowest Usable Frequency for communications to any point outside a 100-mile radius

G6B02

6. What is meant by the term MMIC?

• A. Metal Monolayer Integrated Circuit
• B. Mode Modulated Integrated Circuit
• C. Monolithic Microwave Integrated Circuit
• D. Multi-Mode Integrated Circuit

G2E15

7. Which of the following is a common location for FT8?

• A. Approximately 14.074 MHz to 14.077 MHz
• B. Approximately 14.110 MHz to 14.113 MHz
• C. Anywhere in the CW portion of the band
• D. Anywhere in the voice portion of the band

G5A04

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

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

G9A10

9. What standing wave ratio results from connecting a 50-ohm feed line to a 10-ohm resistive load?

• A. 1:2
• B. 5:1
• C. 1:5
• D. 2:1

G4C07

10. Why should soldered joints not be used in lightning protection ground connections?

• A. Solder flux will prevent a low conductivity connection
• B. Solder has too high a dielectric constant to provide adequate lightning protection
• C. All these choices are correct
• D. A soldered joint will likely be destroyed by the heat of a lightning strike

G4E03

11. Which of the following direct, fused power connections would be the best for a 100-watt HF mobile installation?

• A. To the alternator or generator using heavy-gauge wire
• B. To the alternator or generator using insulated heavy duty balanced transmission line
• C. To the battery using insulated heavy duty balanced transmission line
• D. To the battery using heavy-gauge wire

G9B05

12. How does antenna height affect the azimuthal radiation pattern of a horizontal dipole HF antenna at elevation angles higher than about 45 degrees?

• A. Antenna height has no effect on the pattern
• B. If the antenna is less than 1/2 wavelength high, radiation off the ends of the wire is eliminated
• C. If the antenna is too high, the pattern becomes unpredictable
• D. If the antenna is less than 1/2 wavelength high, the azimuthal pattern is almost omnidirectional

G7A07

13. What is the output waveform of an unfiltered full-wave rectifier connected to a resistive load?

• A. A series of DC pulses at twice the frequency of the AC input
• B. A steady DC voltage
• C. A series of DC pulses at the same frequency as the AC input
• D. A sine wave at half the frequency of the AC input

G2B07

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

G6A12

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

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

G2A10

16. Which of the following statements is true of VOX operation versus PTT operation?

• A. It allows "hands free" operation
• B. It occupies less bandwidth
• C. The received signal is more natural sounding
• D. It provides more power output

G9C12

17. Which of the following is a characteristic of using a gamma match with a Yagi antenna?

• A. It is useful for matching multiband antennas
• B. It does not require any inductors or capacitors
• C. All these choices are correct
• D. It does not require the driven element to be insulated from the boom

G1D11

18. What action 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. Contact the FCC to have the license reinstated
• C. The applicant must show proof of the appropriate expired license grant and pass the current Element 2 exam
• D. They must have a letter from the FCC showing they once held an amateur or commercial license

G0A04

19. What does "time averaging" mean when evaluating RF radiation exposure?

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

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

G8A12

21. What is QPSK modulation?

• A. Modulation in which digital data is transmitted using 0-, 90-, 180- and 270-degrees phase shift to represent pairs of bits
• B. Modulation using quasi-parallel to serial conversion to reduce bandwidth
• C. Modulation using Fast Fourier Transforms to generate frequencies at the first, second, third, and fourth harmonics of the carrier frequency to improve noise immunity
• D. Modulation using quadra-pole sideband keying to generate spread spectrum signals

G2C11

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

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

G5C04

23. What is the approximate total resistance of a 100- and a 200-ohm resistor in parallel?

• A. 300 ohms
• B. 67 ohms
• C. 75 ohms
• D. 150 ohms

G4A06

24. What is the purpose of an antenna tuner?

• A. All these choices are correct
• B. Reduce the SWR in the feed line to the antenna
• C. Increase power transfer from the transmitter to the feed line
• D. Reduce the power dissipation in the feedline to the antenna

G1A02

25. On which of the following bands is phone operation prohibited?

• A. 30 meters
• B. 17 meters
• C. 160 meters
• D. 12 meters

G2D02

26. Which of the following are objectives of the Volunteer Monitor Program?

• A. To coordinate repeaters for efficient and orderly spectrum usage
• B. To encourage amateur radio operators to self-regulate and comply with the rules
• C. To conduct efficient and orderly amateur licensing examinations
• D. To provide emergency and public safety communications

G5B08

27. What is the peak-to-peak voltage of a sine wave with an RMS voltage of 120 volts?

• A. 240.0 volts
• B. 169.7 volts
• C. 84.8 volts
• D. 339.4 volts

G7B02

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

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

G1C03

29. What is the maximum bandwidth permitted by FCC rules for amateur radio stations transmitting on USB frequencies in the 60-meter band?

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

G1B09

30. On what HF frequencies are automatically controlled beacons permitted?

• A. 28.20 MHz to 28.30 MHz
• B. On any frequency if power is less than 1 watt
• C. 21.08 MHz to 21.09 MHz
• D. On any frequency if transmissions are in Morse code

G1E03

31. What is required to conduct communications with a digital station operating under automatic control outside the automatic control band segments?

• A. The control operator of the interrogating station must hold an Amateur Extra class license
• B. No third-party traffic may be transmitted
• C. The station initiating the contact must be under local or remote control
• D. The interrogating transmission must be made by another automatically controlled station

G9D06

32. Which of the following is an advantage of a log-periodic antenna?

• A. Higher gain per element than a Yagi antenna
• B. Wide bandwidth
• C. Polarization diversity
• D. Harmonic suppression

G0B06

33. Which of the following is covered by the National Electrical Code?

• A. Electrical safety of the station
• B. RF exposure limits of the human body
• C. Acceptable bandwidth limits
• D. Acceptable modulation limits

G4B13

34. Which of the following can be measured with an antenna analyzer?

• A. Impedance of coaxial cable
• B. Power output from a transmitter
• C. Gain of a directional antenna
• D. Front-to-back ratio of an antenna

G3A13

35. What does the A-index measure?

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