Practice Exam

G0B15

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

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

G3B05

2. What usually happens to radio waves with frequencies below the Maximum Usable Frequency (MUF) and above the Lowest Usable Frequency (LUF) when they are sent into the ionosphere?

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

G5C08

3. What is the equivalent capacitance of two 5000 picofarad capacitors and one 750 picofarad capacitor connected in parallel?

• A. 3583 picofarads
• B. 576.9 picofarads
• C. 1733 picofarads
• D. 10750 picofarads

G3A14

4. How are radio communications usually affected by the charged particles that reach the Earth from solar coronal holes?

• A. HF communications are improved
• B. HF communications are disturbed
• C. VHF/UHF ducting is disturbed
• D. VHF/UHF ducting is improved

G9D05

5. What is the advantage of vertical stacking of horizontally polarized Yagi antennas?

• A. Narrows the main lobe in azimuth
• B. Allows simultaneous vertical and horizontal polarization
• C. Narrows the main lobe in elevation
• D. Allows quick selection of vertical or horizontal polarization

G1C09

6. What is the maximum symbol rate permitted for RTTY or data emission transmitted on the 1.25 meter and 70 centimeter bands

• A. 300 baud
• B. 1200 baud
• C. 56 kilobaud
• D. 19.6 kilobaud

G4C06

7. What effect can be caused by a resonant ground connection?

• A. Corrosion of the ground rod
• B. A ground loop
• C. High RF voltages on the enclosures of station equipment
• D. Overheating of ground straps

G6C15

8. What is the main reason to use keyed connectors instead of non-keyed types?

• A. Prevention of use by unauthorized persons
• B. All of these choices are correct
• C. Reduced chance of incorrect mating
• D. Higher current carrying capacity

G1A07

9. Which of the following frequencies is within the General Class portion of the 75 meter phone band?

• A. 3900 kHz
• B. 4005 kHz
• C. 3750 kHz
• D. 1875 kHz

G0A01

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

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

G1D07

11. Volunteer Examiners are accredited by what organization?

• A. The Federal Communications Commission
• B. The Universal Licensing System
• C. The Wireless Telecommunications Bureau
• D. A Volunteer Examiner Coordinator

G4D10

12. How close to the lower edge of the 40 meter General Class phone segment should your displayed carrier frequency be when using 3 kHz wide LSB?

• A. Your displayed carrier frequency may be set at the edge of the segment
• B. Center your signal on the edge of the segment
• C. 3 kHz above the edge of the segment
• D. 3 kHz below the edge of the segment

G2B06

13. What is a practical way to avoid harmful interference when selecting a frequency to call CQ on CW or phone?

• A. Listen for 2 minutes before calling CQ
• B. Send the letter "V" in Morse code several times and listen for a response
• C. Send "QRL?" on CW, followed by your call sign; or, if using phone, ask if the frequency is in use, followed by your call sign
• D. Send "QSY" on CW or if using phone, announce "the frequency is in use", then send your call and listen for a response

G5B12

14. What would be the RMS voltage across a 50-ohm dummy load dissipating 1200 watts?

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

G5A07

15. What happens when the impedance of an electrical load is equal to the internal impedance of the power source?

• A. The source can deliver maximum power to the load
• B. The source delivers minimum power to the load
• C. No current can flow through the circuit
• D. The electrical load is shorted

G4B10

16. Which of the following can be determined with a directional wattmeter?

• A. Radio wave propagation
• B. Antenna front-to-back ratio
• C. RF interference
• D. Standing wave ratio

G8A01

17. What is the name of the process that changes the envelope of an RF wave to carry information?

• A. Spread spectrum modulation
• B. Phase modulation
• C. Frequency modulation
• D. Amplitude modulation

G7B13

18. What is the reason for neutralizing the final amplifier stage of a transmitter?

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

G2A06

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

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

G9C18

20. What happens when the feed point of a quad antenna is changed from the center of either horizontal wire to the center of either vertical wire?

• A. The direction of the main lobe is reversed
• B. The polarization of the radiated signal changes from horizontal to vertical
• C. The radiated signal changes to an omnidirectional pattern
• D. The polarization of the radiated signal changes from vertical to horizontal

G2D03

21. What skills learned during "hidden transmitter hunts" are of help to the Amateur Auxiliary?

• A. Identification of different call signs
• B. Direction finding used to locate stations violating FCC Rules
• C. Hunters have an opportunity to transmit on non-amateur frequencies
• D. Identification of out of band operation

G1E10

22. What portion of the 10 meter band is available for repeater use?

• A. The entire band
• B. The portion above 29.5 MHz
• C. The portion between 28.3 MHz and 28.5 MHz
• D. The portion between 28.1 MHz and 28.2 MHz

G8B06

23. What is the total bandwidth of an FM-phone transmission having a 5 kHzdeviation and a 3 kHz modulating frequency?

• A. 3 kHz
• B. 8 kHz
• C. 16 kHz
• D. 5 kHz

G9B05

24. How does antenna height affect the horizontal (azimuthal) radiation pattern of a horizontal dipole HF antenna?

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

G1B12

25. Who or what determines "good engineering and good amateur practice" as applied to the operation of an amateur station in all respects not covered by the Part 97 rules?

• A. The Control Operator
• B. The IEEE
• C. The ITU
• D. The FCC

G3C09

26. What type of radio wave propagation allows a signal to be detected at a distance too far for ground wave propagation but too near for normal sky-wave propagation?

• A. Scatter
• B. Faraday rotation
• C. Short-path skip
• D. Sporadic-E skip

G7C05

27. Which of the following is an advantage of a transceiver controlled by a direct digital synthesizer (DDS)?

• A. Relatively high power output
• B. Wide tuning range and no need for band switching
• C. Relatively low power consumption
• D. Variable frequency with the stability of a crystal oscillator

G2E13

28. In the PACTOR protocol, what is meant by an NAK response to a transmitted packet?

• A. The entire file has been received correctly
• B. The receiver is reporting the packet was received without error
• C. The receiver is busy decoding the packet
• D. The receiver is requesting the packet be re-transmitted

G4E08

29. What is the name of the process by which sunlight is changed directly into electricity?

• A. Photon decomposition
• B. Photon emission
• C. Photosynthesis
• D. Photovoltaic conversion

G9A09

30. 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. 2:1
• B. 1:4
• C. 4:1
• D. 1:2

G6A05

31. Which of the following is one effect of lead inductance in a capacitor used at VHF and above?

• A. Voltage rating may be reduced
• B. The polarity of the capacitor might become reversed
• C. Effective capacitance may be reduced
• D. ESR may be reduced

G6B06

32. Which of the following is an advantage of using a Schottky diode in an RF switching circuit as compared to a standard silicon diode?

• A. Lower inductance
• B. Lower capacitance
• C. Longer switching times
• D. Higher breakdown voltage

G4A03

33. What is normally meant by operating a transceiver in "split" mode?

• A. The radio is operating at half power
• B. The transceiver is operating from an external power source
• C. The transceiver is set to different transmit and receive frequencies
• D. The transmitter is emitting a SSB signal, as opposed to DSB operation

G7A03

34. What is the peak-inverse-voltage across the rectifiers in a full-wave bridge power supply?

• A. Half the normal output voltage of the power supply
• B. One-quarter the normal output voltage of the power supply
• C. Equal to the normal peak output voltage of the power supply
• D. Double the normal peak output voltage of the power supply

G2C10

35. What does the Q signal "QRQ" mean?

• A. Zero beat my signal
• B. Quitting operation
• C. Send faster
• D. Slow down