Practice Exam

G1E04

1. Which of the following conditions require a licensed amateur radio operator to take specific steps to avoid harmful interference to other users or facilities?

• A. When a station is transmitting spread spectrum emissions
• B. When operating within one mile of an FCC Monitoring Station
• C. All these choices are correct
• D. When using a band where the Amateur Service is secondary

G4E02

2. What is the purpose of a corona ball on an HF mobile antenna?

• A. To reduce RF voltage discharge from the tip of the antenna while transmitting
• B. To reduce the chance of damage if the antenna should strike an object
• C. To narrow the operating bandwidth of the antenna
• D. To increase the "Q" of the antenna

G3A13

3. 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

G6A04

4. Which of the following is characteristic of an electrolytic capacitor?

• A. Inexpensive RF capacitor
• B. Much less leakage than any other type
• C. High capacitance for a given volume
• D. Tight tolerance

G9A06

5. In what units is RF feed line loss usually expressed?

• A. Decibels per 1,000 feet
• B. Ohms per 100 feet
• C. Decibels per 100 feet
• D. Ohms per 1,000 feet

G5C01

6. What causes a voltage to appear across the secondary winding of a transformer when an AC voltage source is connected across its primary winding?

• A. Displacement current coupling
• B. Capacitive coupling
• C. Mutual inductance
• D. Mutual capacitance

G5B12

7. What is the RMS voltage across a 50-ohm dummy load dissipating 1200 watts?

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

G2A05

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

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

G5A03

9. Which of the following is opposition to the flow of alternating current in an inductor?

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

G8B10

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

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

G4A01

11. What is the purpose of the notch filter found on many HF transceivers?

• A. To restrict the transmitter voice bandwidth
• B. To reduce interference from carriers in the receiver passband
• C. To eliminate receiver interference from impulse noise sources
• D. To remove interfering splatter generated by signals on adjacent frequencies

G4B11

12. Which of the following must be connected to an antenna analyzer when it is being used for SWR measurements?

• A. All these choices are correct
• B. Transmitter
• C. Receiver
• D. Antenna and feed line

G4D03

13. What is the effect of an incorrectly adjusted speech processor?

• A. Distorted speech
• B. All these choices are correct
• C. Excessive background noise
• D. Excess intermodulation products

G6B11

14. What is an SMA connector?

• A. A type of push-on connector intended for high-voltage applications
• B. A small threaded connector suitable for signals up to several GHz
• C. A connector designed for serial multiple access signals
• D. A type-S to type-M adaptor

G2B09

15. Who may be the control operator of an amateur station transmitting in RACES to assist relief operations during a disaster?

• A. Only a person holding an FCC-issued amateur operator license
• B. A person holding an FCC-issued amateur operator license or an appropriate government official
• C. Any control operator when normal communication systems are operational
• D. Only a RACES net control operator

G9B05

16. 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 less than 1/2 wavelength high, the azimuthal pattern is almost omnidirectional
• D. If the antenna is too high, the pattern becomes unpredictable

G9C03

17. 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. Relative length depends on the frequency of operation
• C. The reflector is longer, and the director is shorter
• D. The reflector is shorter, and the director is longer

G1B03

18. Which of the following is a purpose of a beacon station as identified in the FCC rules?

• A. Observation of propagation and reception
• B. Automatic identification of repeaters
• C. Transmission of bulletins of general interest to amateur radio licensees
• D. All these choices are correct

G9D06

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

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

G3C05

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

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

G2C08

21. What prosign is sent to indicate the end of a formal message when using CW?

• A. BK
• B. SK
• C. AR
• D. KN

G0B03

22. Which size of fuse or circuit breaker would be appropriate to use with a circuit that uses AWG number 14 wiring?

• A. 15 amperes
• B. 20 amperes
• C. 25 amperes
• D. 30 amperes

G8A06

23. Which of the following is characteristic of QPSK31?

• A. It is sideband sensitive
• B. All these choices are correct
• C. Its bandwidth is approximately the same as BPSK31
• D. Its encoding provides error correction

G3B03

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

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

G4C09

25. How can the effects of ground loops be minimized?

• A. Bond equipment enclosures together
• B. Avoid using lock washers and star washers when making ground connections
• C. Connect all ground conductors in series
• D. Connect the AC neutral conductor to the ground wire

G8C16

26. Which of the following provide digital voice modes?

• A. Winlink, PACTOR II, and PACTOR III
• B. WSPR, MFSK16, and EasyPAL
• C. FT8, FT4, and FST4
• D. DMR, D-STAR, and SystemFusion

G7B10

27. Which of the following describes a linear amplifier?

• A. An amplifier used as a frequency multiplier
• B. A Class C high efficiency amplifier
• C. Any RF power amplifier used in conjunction with an amateur transceiver
• D. An amplifier in which the output preserves the input waveform

G7A13

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

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

G7C14

29. The bandwidth of a band-pass filter is measured between what two frequencies?

• A. Image and harmonic
• B. Upper and lower half-power
• C. Cutoff and rolloff
• D. Pole and zero

G1C05

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

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

G0A10

31. What should be done if evaluation shows that a neighbor might experience more than the allowable limit of RF exposure from the main lobe of a directional antenna?

• A. Use an antenna with a higher front-to-back ratio
• B. Take precautions to ensure that the antenna cannot be pointed in their direction when they are present
• C. All these choices are correct
• D. Change to a non-polarized antenna with higher gain

G1D12

32. When operating a station in South America by remote control over the internet from the US, what regulations apply?

• A. Only those of the FCC
• B. Those of both the remote station's country and the FCC
• C. Those of the remote station's country and the FCC's third-party regulations
• D. Only those of the remote station's country

G2E03

33. What symptoms may result from other signals interfering with a PACTOR or VARA transmission?

• A. All these choices are correct
• B. Frequent retries or timeouts
• C. Failure to establish a connection between stations
• D. Long pauses in message transmission

G2D02

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

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

G1A03

35. On which of the following bands is image transmission prohibited?

• A. 160 meters
• B. 12 meters
• C. 30 meters
• D. 20 meters