Practice Exam

G7B03

1. Which of the following describes the function of a two-input AND gate?

• A. Output is high when either or both inputs are low
• B. Output is high only when both inputs are high
• C. Output is low only when both inputs are high
• D. Output is low when either or both inputs are high

G0A08

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

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

G5C11

3. What is the inductance of a circuit with a 20-millihenry inductor connected in series with a 50-millihenry inductor?

• A. 1,000 millihenries
• B. 70 millihenries
• C. 14.3 millihenries
• D. 7 millihenries

G8C06

4. What action results from a failure to exchange information due to excessive transmission attempts when using an ARQ mode?

• A. The connection is dropped
• B. Packets will be routed incorrectly
• C. Encoding reverts to the default character set
• D. The checksum overflows

G1B08

5. When is it permissible to communicate with amateur stations in countries outside the areas administered by the Federal Communications Commission?

• A. Only when the contact is with amateurs licensed by a country which is a member of the United Nations, or by a territory possessed by such a country
• B. Only when the contact is with amateurs licensed by a country which is a member of the International Amateur Radio Union, or by a territory possessed by such a country
• C. Only when the foreign country has a formal third-party agreement filed with the FCC
• D. When the contact is with amateurs in any country except those whose administrations have notified the ITU that they object to such communications

G9B01

6. What is a characteristic of a random-wire HF antenna connected directly to the transmitter?

• A. It produces only vertically polarized radiation
• B. It is more effective on the lower HF bands than on the higher bands
• C. Station equipment may carry significant RF current
• D. It must be longer than 1 wavelength

G5A10

7. Which of the following devices can be used for impedance matching at radio frequencies?

• A. A Pi-network
• B. A length of transmission line
• C. All these choices are correct
• D. A transformer

G7C13

8. What term specifies a filter's maximum ability to reject signals outside its passband?

• A. Insertion loss
• B. Notch depth
• C. Rolloff
• D. Ultimate rejection

G8A03

9. What is the name of the process that changes the instantaneous frequency of an RF wave to convey information?

• A. Frequency conversion
• B. Frequency transformation
• C. Frequency modulation
• D. Frequency convolution

G0B04

10. Where should the station's lightning protection ground system be located?

• A. Next to the closest power pole
• B. Parallel to the water supply line
• C. Outside the building
• D. As close to the station equipment as possible

G7A12

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

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

G4D06

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

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

G3A06

13. What is a geomagnetic storm?

• A. Ripples in the geomagnetic force
• B. A temporary disturbance in Earth's geomagnetic field
• C. A sudden drop in the solar flux index
• D. A thunderstorm that affects radio propagation

G1D01

14. Who may receive partial credit for the elements represented by an expired amateur radio license?

• A. Any person who can demonstrate that they once held an FCC-issued General, Advanced, or Amateur Extra class license that was not revoked by the FCC
• B. Only persons who once held an FCC issued Novice, Technician, or Technician Plus license
• C. Anyone who held an FCC-issued amateur radio license that expired not less than 5 and not more than 15 years ago
• D. Any person who previously held an amateur license issued by another country, but only if that country has a current reciprocal licensing agreement with the FCC

G4B04

15. What signal source is connected to the vertical input of an oscilloscope when checking the RF envelope pattern of a transmitted signal?

• A. An external RF oscillator
• B. The transmitter balanced mixer output
• C. The attenuated RF output of the transmitter
• D. The local oscillator of the transmitter

G2E14

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

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

G6A08

17. Which of the following is characteristic of low voltage ceramic capacitors?

• A. High stability
• B. Comparatively low cost
• C. Tight tolerance
• D. High capacitance for given volume

G2A07

18. Which of the following statements is true of single sideband (SSB)?

• A. Only one sideband is transmitted; the other sideband and carrier are suppressed
• B. SSB is the only voice mode authorized on the 20-, 15-, and 10-meter amateur bands
• C. Only one sideband and the carrier are transmitted; the other sideband is suppressed
• D. SSB is the only voice mode authorized on the 160-, 75-, and 40-meter amateur bands

G9D01

19. Which of the following antenna types will be most effective as a near vertical incidence skywave (NVIS) antenna for short-skip communications on 40 meters during the day?

• A. A horizontal dipole placed at approximately 1/2 wavelength above the ground
• B. A vertical antenna placed between 1/4 and 1/2 wavelength above the ground
• C. A horizontal dipole placed between 1/10 and 1/4 wavelength above the ground
• D. A vertical dipole placed at approximately 1/2 wavelength above the ground

G1E05

20. What are the restrictions on messages sent to a third party in a country with which there is a Third-Party Agreement?

• A. They must relate to amateur radio, or remarks of a personal character, or messages relating to emergencies or disaster relief
• B. They must be for other licensed amateurs
• C. The message must be limited to no longer than 1 minute in duration and the name of the third party must be recorded in the station log
• D. They must relate to emergencies or disaster relief

G3B01

21. What is a characteristic of skywave signals arriving at your location by both short-path and long-path propagation?

• A. The signal might be cancelled causing severe attenuation
• B. Signal strength increased by 3 dB
• C. A slightly delayed echo might be heard
• D. Periodic fading approximately every 10 seconds

G4A03

22. How does a noise blanker work?

• A. By redirecting noise pulses into a filter capacitor
• B. By clipping noise peaks
• C. By reducing receiver gain during a noise pulse
• D. By temporarily increasing received bandwidth

G3C10

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

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

G6B12

24. Which of these connector types is commonly used for low frequency or dc signal connections to a transceiver?

• A. RCA Phono
• B. BNC
• C. Type N
• D. PL-259

G2D04

25. 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 true bearings and distances from a specific location
• C. A map that shows accurate land masses
• D. A map that shows the angle at which an amateur satellite crosses the equator

G9C07

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

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

G4C08

27. 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. Ground the center conductor of the audio cable causing the interference
• C. Place a ferrite choke on the cable
• D. Connect the center conductor to the shield of all cables to short circuit the RFI signal

G9A10

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

• A. 1:5
• B. 1:2
• C. 5:1
• D. 2:1

G5B13

29. What is the output PEP of an unmodulated carrier if the average power is 1060 watts?

• A. 530 watts
• B. 2120 watts
• C. 1060 watts
• D. 1500 watts

G2C07

30. When sending CW, what does a "C" mean when added to the RST report?

• A. Key clicks
• B. Chirpy or unstable signal
• C. 100 percent copy
• D. Report was read from an S meter rather than estimated

G8B08

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

• A. To prevent overmodulation
• B. Some modes have high duty cycles that could exceed the transmitter's average power rating
• C. To allow time for the other station to break in during a transmission
• D. To aid in tuning your transmitter

G1A03

32. On which of the following bands is image transmission prohibited?

• A. 160 meters
• B. 30 meters
• C. 20 meters
• D. 12 meters

G4E10

33. Why should a series diode be connected between a solar panel and a storage battery that is being charged by the panel?

• A. To prevent discharge of the battery through the panel during times of low or no illumination
• B. To limit the current flowing from the panel to a safe value
• C. To prevent overload by regulating the charging voltage
• D. To prevent damage to the battery due to excessive voltage at high illumination levels

G1C04

34. Which of the following is required by the FCC rules when operating in the 60-meter band?

• A. You must keep a record of the manufacturer of your equipment and the antenna used
• B. If you are using an antenna other than a dipole, you must keep a record of the gain of your antenna
• C. You must keep a record of all third-party traffic
• D. You must keep a record of the date, time, frequency, power level, and stations worked

G2B02

35. What is the first thing you should do if you are communicating with another amateur station and hear a station in distress break in?

• A. Immediately decrease power to avoid interfering with the station in distress
• B. Inform your local emergency coordinator
• C. Acknowledge the station in distress and determine what assistance may be needed
• D. Immediately cease all transmissions