Practice Exam

G2B07

1. Which of the following complies with commonly accepted amateur practice when choosing a frequency on which to initiate a call?

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

G1B02

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

• A. All these choices are correct
• B. The frequency must be posted on the internet or published in a national periodical
• C. No more than one beacon station may transmit in the same band from the same station location
• D. The frequency must be coordinated with the National Beacon Organization

G8B11

3. What combination of a mixer's Local Oscillator (LO) and RF input frequencies is found in the output?

• A. The arithmetic product
• B. The sum and difference
• C. The average
• D. The ratio

G0A06

4. What must you do if your station fails to meet the FCC RF exposure exemption criteria?

• A. Use an FCC-approved band-pass filter
• B. Contact the FCC for permission to transmit
• C. Perform an RF Exposure Evaluation in accordance with FCC OET Bulletin 65
• D. Perform an RF exposure evaluation in accordance with World Meteorological Organization guidelines

G7C11

5. Which of these functions is performed by software in a software-defined radio (SDR)?

• A. Detection
• B. Filtering
• C. Modulation
• D. All these choices are correct

G9C02

6. What is the approximate length of the driven element of a Yagi antenna?

• A. 1/2 wavelength
• B. 1 wavelength
• C. 1/4 wavelength
• D. 3/4 wavelength

G2E14

7. What could be wrong if you cannot decode an RTTY or other FSK signal even though it is apparently tuned in properly?

• A. The mark and space frequencies may be reversed
• B. All these choices are correct
• C. You may have selected the wrong baud rate
• D. You may be listening on the wrong sideband

G8C11

8. How are the two separate frequencies of a Frequency Shift Keyed (FSK) signal identified?

• A. Dot and dash
• B. On and off
• C. High and low
• D. Mark and space

G9A03

9. What is the nominal characteristic impedance of "window line" transmission line?

• A. 50 ohms
• B. 75 ohms
• C. 100 ohms
• D. 450 ohms

G1C11

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

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

G6A07

11. What are the operating points for a bipolar transistor used as a switch?

• A. Peak and valley current points
• B. The active region (between cutoff and saturation)
• C. Saturation and cutoff
• D. Enhancement and depletion modes

G5C04

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

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

G5B09

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

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

G0B02

14. According to the National Electrical Code, what is the minimum wire size that may be used safely for wiring with a 20-ampere circuit breaker?

• A. AWG number 8
• B. AWG number 12
• C. AWG number 20
• D. AWG number 16

G1A07

15. On which amateur frequencies in the 10-meter band may stations with a General class control operator transmit CW emissions?

• A. 28.025 MHz to 28.300 MHz only
• B. 28.000 MHz to 28.300 MHz only
• C. The entire band
• D. 28.000 MHz to 28.025 MHz only

G3C10

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

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

G7A09

17. Which symbol in figure G7-1 represents a field effect transistor?

• A. Symbol 2
• B. Symbol 4
• C. Symbol 1
• D. Symbol 5

G1D05

18. When operating a US station by remote control from outside the country, what license is required of the control operator?

• A. Only a license from the foreign country, as long as the call sign includes identification of portable operation in the US
• B. A license from the foreign country and a special remote station permit from the FCC
• C. Only an appropriate US operator/primary license and a special remote station permit from the FCC
• D. A US operator/primary station license

G7B05

19. How many states does a 3-bit binary counter have?

• A. 8
• B. 6
• C. 3
• D. 16

G9D06

20. 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

G1E08

21. What is the maximum PEP output allowed for spread spectrum transmissions?

• A. 1500 watts
• B. 100 milliwatts
• C. 10 watts
• D. 100 watts

G9B04

22. What is the radiation pattern of a dipole antenna in free space in a plane containing the conductor?

• A. It has a pair of lobes on one side of the antenna and a single lobe on the other side
• B. It is a figure-eight off both ends of the antenna
• C. It is a circle (equal radiation in all directions)
• D. It is a figure-eight at right angles to the antenna

G6B06

23. What kind of device is an integrated circuit operational amplifier?

• A. Analog
• B. MMIC
• C. Digital
• D. Programmable Logic

G3A01

24. How does a higher sunspot number affect HF propagation?

• A. A zero sunspot number indicates undisturbed conditions
• B. Higher sunspot numbers generally indicate a greater probability of good propagation at higher frequencies
• C. Lower sunspot numbers generally indicate greater probability of sporadic E propagation
• D. A zero sunspot number indicates that radio propagation is not possible on any band

G4A09

25. What is the purpose of delaying RF output after activating a transmitter's keying line to an external amplifier?

• A. To prevent transient overmodulation
• B. To allow time for the amplifier power supply to reach operating level
• C. To prevent key clicks on CW
• D. To allow time for the amplifier to switch the antenna between the transceiver and the amplifier output

G5A04

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

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

G8A12

27. What is QPSK modulation?

• A. Modulation using quasi-parallel to serial conversion to reduce bandwidth
• B. Modulation in which digital data is transmitted using 0-, 90-, 180- and 270-degrees phase shift to represent pairs of bits
• 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

G3B05

28. How does the ionosphere affect radio waves with frequencies below the MUF and above the LUF?

• A. They are refracted back to Earth
• B. They are refracted and trapped in the ionosphere to circle Earth
• C. They pass through the ionosphere
• D. They are amplified by interaction with the ionosphere

G4C08

29. Which of the following would reduce RF interference caused by common-mode current on an audio cable?

• A. Add an additional insulating jacket to the cable
• B. Place a ferrite choke on the cable
• C. Ground the center conductor of the audio cable causing the interference
• D. Connect the center conductor to the shield of all cables to short circuit the RFI signal

G4B02

30. Which of the following is an advantage of an oscilloscope versus a digital voltmeter?

• A. An oscilloscope uses less power
• B. Greater precision
• C. Complex impedances can be easily measured
• D. Complex waveforms can be measured

G2D09

31. Which of the following is required when participating in a contest on HF frequencies?

• A. Submit a log to the contest sponsor
• B. Send a QSL card to the stations worked, or QSL via Logbook of The World
• C. All these choices are correct
• D. Identify your station according to normal FCC regulations

G4D06

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

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

G4E09

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

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

G2A11

34. Generally, who should respond to a station in the contiguous 48 states calling "CQ DX"?

• A. Only stations in Germany
• B. Any stations outside the lower 48 states
• C. Only contest stations
• D. Any caller is welcome to respond

G2C05

35. What is the best speed to use when answering a CQ in Morse code?

• A. At the standard calling speed of 10 wpm
• B. At the standard calling speed of 5 wpm
• C. The fastest speed at which you are comfortable copying, but no slower than the CQ
• D. The fastest speed at which you are comfortable copying, but no faster than the CQ