Practice Exam

G5B07

1. Which value of an AC signal results in the same power dissipation as a DC voltage of the same value?

• A. The peak value
• B. The peak-to-peak value
• C. The RMS value
• D. The reciprocal of the RMS value

G6C16

2. Which of the following describes a type-N connector?

• A. A moisture-resistant RF connector useful to 10 GHz
• B. A threaded connector used for hydraulic systems
• C. A small bayonet connector used for data circuits
• D. An audio connector used in surround-sound installations

G1D08

3. Which of the following criteria must be met for a non-U.S. citizen to be an accredited Volunteer Examiner?

• A. The person must be a resident of the U.S. for a minimum of 5 years
• B. The person must hold an FCC granted Amateur Radio license of General Class or above
• C. None of these choices is correct; non-U.S. citizens cannot be volunteer examiners
• D. The person's home citizenship must be in the ITU 2 region

G7C10

4. How is Digital Signal Processor filtering accomplished?

• A. By using direct signal phasing
• B. By converting the signal from analog to digital and using digital processing
• C. By differential spurious phasing
• D. By converting the signal from digital to analog and taking the difference of mixing products

G8A06

5. What is one advantage of carrier suppression in a single-sideband phone transmission?

• A. Audio fidelity is improved
• B. The available transmitter power can be used more effectively
• C. Greater modulation percentage is obtainable with lower distortion
• D. Simpler receiving equipment can be used

G4A06

6. What type of device is often used to enable matching the transmitter output to an impedance other than 50 ohms?

• A. Antenna coupler
• B. SWR Bridge
• C. Q Multiplier
• D. Balanced modulator

G3B07

7. What does LUF stand for?

• A. The Longest Universal Function for communications between two points
• B. The Longest Universal Function during a 24 hour period
• C. The Lowest Usable Frequency for communications between two points
• D. The Lowest Usable Frequency during a 24 hour period

G0B14

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

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

G2B12

9. When is an amateur station allowed to use any means at its disposal to assist another station in distress?

• A. Only when transmitting in RACES
• B. At any time when transmitting in an organized net
• C. At any time during an actual emergency
• D. Only on authorized HF frequencies

G6B04

10. When two or more diodes are connected in parallel to increase current handling capacity, what is the purpose of the resistor connected in series with each diode?

• A. To act as an inductor
• B. To regulate the power supply output voltage
• C. To ensure that one diode doesn't carry most of the current
• D. To ensure the thermal stability of the power supply

G6A04

11. Which of the following is an advantage of an electrolytic capacitor?

• A. High capacitance for given volume
• B. Non-polarized
• C. Inexpensive RF capacitor
• D. Tight tolerance

G4B14

12. What is an instance in which the use of an instrument with analog readout may be preferred over an instrument with a numerical digital readout?

• A. When measuring the frequency of an oscillator
• B. When high precision is desired
• C. When testing logic circuits
• D. When adjusting tuned circuits

G2C11

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

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

G0A04

14. What does "time averaging" mean in reference to RF radiation exposure?

• A. The average time of day when the exposure occurs
• B. The total time of the exposure
• C. The average time it takes RF radiation to have any long-term effect on the body
• D. The total RF exposure averaged over a certain time

G4E05

15. Which of the following most limits the effectiveness of an HF mobile transceiver operating in the 75 meter band?

• A. The antenna system
• B. "Picket Fencing" signal variation
• C. FCC rules limiting mobile output power on the 75 meter band
• D. The wire gauge of the DC power line to the transceiver

G3A02

16. What effect does a Sudden Ionospheric Disturbance have on the daytime ionospheric propagation of HF radio waves?

• A. It enhances propagation on all HF frequencies
• B. None, because only areas on the night side of the Earth are affected
• C. It disrupts signals on lower frequencies more than those on higher frequencies
• D. It disrupts communications via satellite more than direct communications

G1A06

17. Which of the following frequencies is in the 12 meter band?

• A. 24.940 MHz
• B. 12.940 MHz
• C. 3.940 MHz
• D. 17.940 MHz

G5A09

18. What unit is used to measure reactance?

• A. Ampere
• B. Siemens
• C. Ohm
• D. Farad

G9C06

19. Which of the following is a reason why a Yagi antenna is often used for radio communications on the 20 meter band?

• A. It helps reduce interference from other stations to the side or behind the antenna
• B. It is smaller, less expensive and easier to erect than a dipole or vertical antenna
• C. It provides the highest possible angle of radiation for the HF bands
• D. It provides excellent omnidirectional coverage in the horizontal plane

G2D11

20. Which HF antenna would be the best to use for minimizing interference?

• A. An omnidirectional antenna
• B. A quarter wave vertical antenna
• C. A unidirectional antenna
• D. An isotropic antenna

G9B06

21. Where should the radial wires of a ground-mounted vertical antenna system be placed?

• A. Parallel to the antenna element
• B. On the surface or buried a few inches below the ground
• C. At the top of the antenna
• D. As high as possible above the ground

G2E08

22. What segment of the 80 meter band is most commonly used for data transmissions?

• A. 3775 - 3825 kHz
• B. 3570 - 3600 kHz
• C. 3700 - 3750 kHz
• D. 3500 - 3525 kHz

G3C05

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

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

G4C10

24. What could be a symptom of a ground loop somewhere in your station?

• A. An item of station equipment starts to draw excessive amounts of current
• B. You receive reports of harmonic interference from your station
• C. The SWR reading for one or more antennas is suddenly very high
• D. You receive reports of "hum" on your station's transmitted signal

G4D04

25. What does an S meter measure?

• A. Transmitter power output
• B. Impedance
• C. Conductance
• D. Received signal strength

G1C06

26. Which of the following is a limitation on transmitter power on the 1.8 MHz band?

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

G1E06

27. Which of the following applies in the event of interference between a coordinated repeater and an uncoordinated repeater?

• A. The frequency coordinator bears primary responsibility to resolve the interference
• B. Both repeater licensees share equal responsibility to resolve the interference
• C. The licensee of the coordinated repeater has primary responsibility to resolve the interference
• D. The licensee of the non-coordinated repeater has primary responsibility to resolve the interference

G9D04

28. What is the primary purpose of antenna traps?

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

G7A07

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

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

G1B04

30. Which of the following must be true before amateur stations may provide communications to broadcasters for dissemination to the public?

• A. The FCC must have declared a state of emergency
• B. The communications must directly relate to the immediate safety of human life or protection of property and there must be no other means of communication reasonably available before or at the time of the event
• C. All of these choices are correct
• D. The communications must be approved by a local emergency preparedness official and conducted on officially designated frequencies

G5C14

31. Which of the following components should be added to an inductor to increase the inductance?

• A. A capacitor in series
• B. An inductor in series
• C. An inductor in parallel
• D. A resistor in parallel

G7B11

32. For which of the following modes is a Class C power stage appropriate for amplifying a modulated signal?

• A. CW
• B. All of these choices are correct
• C. SSB
• D. AM

G8B08

33. Why is it important to know the duty cycle of the data mode you are using when transmitting?

• A. To aid in tuning your transmitter
• B. To allow time for the other station to break in during a transmission
• C. Some modes have high duty cycles which could exceed the transmitter's average power rating.
• D. All of these choices are correct

G2A06

34. Which of the following is an advantage when using single sideband as compared to other analog voice modes on the HF amateur bands?

• A. Ease of tuning on receive and immunity to impulse noise
• B. Less subject to static crashes (atmospherics)
• C. Very high fidelity voice modulation
• D. Less bandwidth used and higher power efficiency

G9A09

35. What standing wave ratio will result from the connection of a 50-ohm feed line to a non-reactive load having a 200-ohm impedance?

• A. 1:2
• B. 1:4
• C. 2:1
• D. 4:1