Practice Exam

G5C10

1. What is the inductance of three 10-millihenry inductors connected in parallel?

• A. 3.3 henries
• B. 3.3 millihenries
• C. 30 millihenries
• D. 0.30 henries

G6A04

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

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

G4D05

3. How does a signal that reads 20 dB over S9 compare to one that reads S9 on a receiver, assuming a properly calibrated S meter?

• A. It is 10 times less powerful
• B. It is 20 times less powerful
• C. It is 20 times more powerful
• D. It is 100 times more powerful

G0B09

4. Which of the following is true of an emergency generator installation?

• A. All these choices are correct
• B. Fuel should be stored near the generator for rapid refueling in case of an emergency
• C. The generator should be operated in a well-ventilated area
• D. The generator must be insulated from ground

G7C06

5. Which of the following is an advantage of a digital signal processing (DSP) filter compared to an analog filter?

• A. The DSP filter is much more effective at VHF frequencies
• B. Mixing products are greatly reduced
• C. A wide range of filter bandwidths and shapes can be created
• D. Fewer digital components are required

G9D04

6. What is the primary function of antenna traps?

• A. To provide balanced feed point impedance
• B. To notch spurious frequencies
• C. To prevent out-of-band operation
• D. To enable multiband operation

G6B06

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

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

G9A10

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

• A. 2:1
• B. 5:1
• C. 1:5
• D. 1:2

G4B02

9. 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

G4C11

10. What technique helps to minimize RF "hot spots" in an amateur station?

• A. Placing low-pass filters on all feed lines
• B. Using surge suppressor power outlets
• C. Building all equipment in a metal enclosure
• D. Bonding all equipment enclosures together

G5B05

11. How many watts are consumed when a current of 7.0 milliamperes flows through a 1,250-ohm resistance?

• A. Approximately 11 watts
• B. Approximately 11 milliwatts
• C. Approximately 61 milliwatts
• D. Approximately 61 watts

G7A12

12. Which symbol in Figure G7-1 represents a solid core transformer?

• A. Symbol 1
• B. Symbol 7
• C. Symbol 4
• D. Symbol 6

G7B01

13. What is the purpose of neutralizing an amplifier?

• A. To cut off the final amplifier during standby periods
• B. To eliminate self-oscillations
• C. To limit the modulation index
• D. To keep the carrier on frequency

G1D02

14. What license examinations may you administer as an accredited Volunteer Examiner holding a General class operator license?

• A. General and Technician
• B. Technician only
• C. None, only Amateur Extra class licensees may be accredited
• D. Amateur Extra, General, and Technician

G1C06

15. What is the limit for transmitter power on the 1.8 MHz band?

• A. 1000 watts PEP output
• B. 1200 watts PEP output
• C. 1500 watts PEP output
• D. 200 watts PEP output

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. It provides more power output
• D. The received signal is more natural sounding

G0A01

17. What is one way that RF energy can affect human body tissue?

• A. It heats body tissue
• B. It causes the blood count to reach a dangerously low level
• C. It cools body tissue
• D. It causes radiation poisoning

G9C09

18. In free space, how does the gain of two three-element, horizontally polarized Yagi antennas spaced vertically 1/2 wavelength apart typically compare to the gain of a single three-element Yagi?

• A. Approximately 6 dB higher
• B. Approximately 3 dB higher
• C. Approximately 9 dB higher
• D. Approximately 1.5 dB higher

G3B05

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

G5A01

20. What happens when inductive and capacitive reactance are equal in a series LC circuit?

• A. Impedance is equal to the arithmetic mean of the inductance and capacitance
• B. Resonance causes impedance to be very low
• C. Impedance is equal to the geometric mean of the inductance and capacitance
• D. Resonance causes impedance to be very high

G3A01

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

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

G2E05

22. What is the standard sideband for JT65, JT9, FT4, or FT8 digital signal when using AFSK?

• A. SSB
• B. LSB
• C. DSB
• D. USB

G4E07

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

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

G1B07

24. What are the restrictions on the use of abbreviations or procedural signals in the amateur service?

• A. They are limited to those expressly listed in Part 97 of the FCC rules
• B. They are not permitted
• C. They may be used if they do not obscure the meaning of a message
• D. Only "Q" signals are permitted

G8C13

25. What is indicated on a waterfall display by one or more vertical lines on either side of a data mode or RTTY signal?

• A. Long path propagation
• B. Overmodulation
• C. Insufficient modulation
• D. Backscatter propagation

G3C06

26. What is a characteristic of HF scatter?

• A. Phone signals have high intelligibility
• B. Scatter propagation occurs only at night
• C. Signals have a fluttering sound
• D. There are very large, sudden swings in signal strength

G2C04

27. What does the Q signal "QRL?" mean?

• A. "Are you listening only for a specific station?"
• B. "Will you keep the frequency clear?"
• C. "Are you busy?" or "Is this frequency in use?"
• D. "Are you operating full break-in?" or "Can you operate full break-in?"

G1E02

28. When may a 10-meter repeater retransmit the 2-meter signal from a station that has a Technician class control operator?

• A. Under no circumstances
• B. Only if the 10-meter repeater control operator holds at least a General class license
• C. Only if the station on 10-meters is operating under a Special Temporary Authorization allowing such retransmission
• D. Only during an FCC-declared general state of communications emergency

G4A01

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

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

G2D03

30. What procedure may be used by Volunteer Monitors to localize a station whose continuous carrier is holding a repeater on in their area?

• A. Compare vertical and horizontal signal strengths on the input frequency
• B. All these choices are correct
• C. Compare signal strengths between the input and output of the repeater
• D. Compare beam headings on the repeater input from their home locations with that of other Volunteer Monitors

G1A01

31. On which HF and/or MF amateur bands are there portions where General class licensees cannot transmit?

• A. 80 meters, 20 meters, 15 meters, and 10 meters
• B. 80 meters, 40 meters, 20 meters, and 15 meters
• C. 60 meters, 30 meters, 17 meters, and 12 meters
• D. 160 meters, 60 meters, 15 meters, and 12 meters

G8B12

32. What process combines two signals in a non-linear circuit to produce unwanted spurious outputs?

• A. Intermodulation
• B. Detection
• C. Rolloff
• D. Heterodyning

G8A10

33. What is meant by the term "flat-topping," when referring to an amplitude-modulated phone signal?

• A. Signal distortion caused by excessive drive or speech levels
• B. The transmitter's carrier is properly suppressed
• C. Signal distortion caused by insufficient collector current
• D. The transmitter's automatic level control (ALC) is properly adjusted

G2B07

34. 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

G9B04

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

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