Practice Exam

G5B11

1. What is the ratio of PEP to average power for an unmodulated carrier?

• A. 2.00
• B. 1.00
• C. 0.707
• D. 1.414

G5C04

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

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

G2B10

3. Which of the following is good amateur practice for net management?

• A. Transmit the full net roster at the beginning of every session
• B. Always use multiple sets of phonetics during check-in
• C. All these choices are correct
• D. Have a backup frequency in case of interference or poor conditions

G8C05

4. In an ARQ mode, what is meant by a NAK response to a transmitted packet?

• A. Packet was received without error
• B. Request retransmission of the packet
• C. Entire file received correctly
• D. Receiving station connected and ready for transmissions

G3C03

5. Why is skip propagation via the F2 region longer than that via the other ionospheric regions?

• A. Because of temperature inversions
• B. Because of the Doppler effect
• C. Because it is the highest
• D. Because it is the densest

G3B05

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

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

G2C06

7. What does the term "zero beat" mean in CW operation?

• A. Matching the speed of the transmitting station
• B. Matching the transmit frequency to the frequency of a received signal
• C. Sending without error
• D. Operating split to avoid interference on frequency

G1B01

8. What is the maximum height above ground for an antenna structure not near a public use airport without requiring notification to the FAA and registration with the FCC?

• A. 50 feet
• B. 250 feet
• C. 100 feet
• D. 200 feet

G4A12

9. Which of the following is a common use of the dual-VFO feature on a transceiver?

• A. To transmit on one frequency and listen on another
• B. To permit full duplex operation -- that is, transmitting and receiving at the same time
• C. To allow transmitting on two frequencies at once
• D. To improve frequency accuracy by allowing variable frequency output (VFO) operation

G4D02

10. How does a speech processor affect a single sideband phone signal?

• A. It reduces harmonic distortion
• B. It reduces intermodulation distortion
• C. It increases average power
• D. It increases peak power

G1C03

11. What is the maximum bandwidth permitted by FCC rules for amateur radio stations transmitting on USB frequencies in the 60-meter band?

• A. 5.6 kHz
• B. 2.8 kHz
• C. 3 kHz
• D. 1.8 kHz

G4B06

12. What is an advantage of a digital multimeter as compared to an analog multimeter?

• A. Faster response
• B. Less prone to overload
• C. Higher precision
• D. Better for measuring computer circuits

G0B10

13. Which of the following is a danger from lead-tin solder?

• A. High voltages can cause lead-tin solder to disintegrate suddenly
• B. RF energy can convert the lead into a poisonous gas
• C. Lead can contaminate food if hands are not washed carefully after handling the solder
• D. Tin in the solder can "cold flow," causing shorts in the circuit

G5A08

14. What is impedance?

• A. The product of current and reactance
• B. The product of current and voltage
• C. The ratio of voltage to current
• D. The ratio of current to voltage

G8B05

15. Which intermodulation products are closest to the original signal frequencies?

• A. Intercept point
• B. Second harmonics
• C. Odd-order
• D. Even-order

G1A05

16. On which of the following frequencies are General class licensees prohibited from operating as control operator?

• A. 7.125 MHz to 7.175 MHz
• B. 28.000 MHz to 28.025 MHz
• C. All of the above
• D. 21.275 MHz to 21.300 MHz

G1D07

17. Volunteer Examiners are accredited by what organization?

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

G7A12

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

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

G2E02

19. What is VARA?

• A. A DX spotting system using a network of software defined radios
• B. A digital protocol used with Winlink
• C. A low signal-to-noise digital mode used for EME (moonbounce)
• D. A radio direction finding system used on VHF and UHF

G9B05

20. How does antenna height affect the azimuthal radiation pattern of a horizontal dipole HF antenna at elevation angles higher than about 45 degrees?

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

G8A10

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

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

G4E06

22. What is one disadvantage of using a shortened mobile antenna as opposed to a full-size antenna?

• A. Harmonic radiation may increase
• B. Q of the antenna will be very low
• C. Short antennas are more likely to cause distortion of transmitted signals
• D. Operating bandwidth may be very limited

G4C03

23. What sound is heard from an audio device experiencing RF interference from a single sideband phone transmitter?

• A. Clearly audible speech
• B. A steady hum whenever the transmitter is on the air
• C. On-and-off humming or clicking
• D. Distorted speech

G6A01

24. What is the minimum allowable discharge voltage for maximum life of a standard 12-volt lead-acid battery?

• A. 10.5 volts
• B. 6 volts
• C. 12 volts
• D. 8.5 volts

G2A08

25. What is the recommended way to break into a phone contact?

• A. Say your call sign once
• B. Say "QRZ" several times, followed by your call sign
• C. Say "Breaker Breaker"
• D. Say "CQ" followed by the call sign of either station

G9D06

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

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

G2D04

27. Which of the following describes an azimuthal projection map?

• A. A map that shows the number of degrees longitude that an amateur satellite appears to move westward at the equator with each orbit
• B. A map that shows accurate land masses
• C. A map that shows the angle at which an amateur satellite crosses the equator
• D. A map that shows true bearings and distances from a specific location

G3A12

28. What does the K-index measure?

• A. The short-term stability of Earth's geomagnetic field
• B. The short-term stability of the Sun's magnetic field
• C. The solar radio flux at Boulder, Colorado
• D. The relative position of sunspots on the surface of the Sun

G7C07

29. What term specifies a filter's attenuation inside its passband?

• A. Q
• B. Return loss
• C. Insertion loss
• D. Ultimate rejection

G9A11

30. What is the effect of transmission line loss on SWR measured at the input to the line?

• A. Higher loss reduces SWR measured at the input to the line
• B. Transmission line loss does not affect the SWR measurement
• C. Higher loss increases the accuracy of SWR measured at the input to the line
• D. Higher loss increases SWR measured at the input to the line

G0A08

31. Which of the following steps must an amateur operator take to ensure compliance with RF safety regulations?

• A. All these choices are correct
• B. Notify neighbors within a 100-foot radius of the antenna of the existence of the station and power levels
• C. Perform a routine RF exposure evaluation and prevent access to any identified high exposure areas
• D. Post a copy of FCC Part 97.13 in the station

G1E12

32. When may third-party messages be transmitted via remote control?

• A. Under any circumstances in which third party messages are permitted by FCC rules
• B. Under no circumstances except for emergencies
• C. Only when the message is intended for licensed radio amateurs
• D. Only when the message is intended for third parties in areas where licensing is controlled by the FCC

G6B05

33. What is an advantage of using a ferrite core toroidal inductor?

• A. Large values of inductance may be obtained
• B. Most of the magnetic field is contained in the core
• C. The magnetic properties of the core may be optimized for a specific range of frequencies
• D. All these choices are correct

G7B07

34. Which of the following are basic components of a sine wave oscillator?

• A. An amplifier and a divider
• B. A frequency multiplier and a mixer
• C. A filter and an amplifier operating in a feedback loop
• D. A circulator and a filter operating in a feed-forward loop

G9C07

35. What does "front-to-back ratio" mean in reference to a Yagi antenna?

• A. The ratio of forward gain to dipole gain
• B. The number of directors versus the number of reflectors
• C. The power radiated in the major lobe compared to that in the opposite direction
• D. The relative position of the driven element with respect to the reflectors and directors