Practice Exam

G7A13

1. Which symbol in Figure G7-1 represents a tapped inductor?

• A. Symbol 7
• B. Symbol 1
• C. Symbol 11
• D. Symbol 6

G8C02

2. Which digital mode is used as a low-power beacon for assessing HF propagation?

• A. PSK31
• B. Olivia
• C. WSPR
• D. SSB-SC

G9B11

3. What is the approximate length for a 1/2 wave dipole antenna cut for 3.550 MHz?

• A. 42 feet
• B. 132 feet
• C. 263 feet
• D. 84 feet

G4D06

4. Where is an S meter found?

• A. In a transmitter
• B. In an SWR bridge
• C. In a receiver
• D. In a conductance bridge

G7C06

5. What should be the impedance of a low-pass filter as compared to the impedance of the transmission line into which it is inserted?

• A. Substantially higher
• B. About the same
• C. Twice the transmission line impedance
• D. Substantially lower

G5B02

6. How does the total current relate to the individual currents in each branch of a purely resistive parallel circuit?

• A. It equals the sum of the currents through each branch
• B. It decreases as more parallel branches are added to the circuit
• C. It is the sum of the reciprocal of each individual voltage drop
• D. It equals the average of each branch current

G9D09

7. What is the primary use of a Beverage antenna?

• A. Directional receiving for low HF bands
• B. Portable direction finding at higher HF frequencies
• C. Portable direction finding at lower HF frequencies
• D. Directional transmitting for low HF bands

G2B04

8. When selecting a CW transmitting frequency, what minimum separation should be used to minimize interference to stations on adjacent frequencies?

• A. 150 to 500 Hz
• B. 5 to 50 Hz
• C. 3 to 6 kHz
• D. 1 to 3 kHz

G9A06

9. In what units is RF feed line loss usually expressed?

• A. Ohms per 100 feet
• B. Decibels per 100 feet
• C. Decibels per 1000 feet
• D. Ohms per 1000 feet

G6A07

10. What are the stable operating points for a bipolar transistor used as a switch in a logic circuit?

• A. Its active region (between the cutoff and saturation regions)
• B. Its enhancement and depletion modes
• C. Its peak and valley current points
• D. Its saturation and cutoff regions

G2A02

11. Which of the following modes is most commonly used for voice communications on the 160-meter, 75-meter, and 40-meter bands?

• A. Lower sideband
• B. Double sideband
• C. Vestigial sideband
• D. Upper sideband

G3B06

12. What usually happens to radio waves with frequencies below the LUF?

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

G4C03

13. What sound is heard from an audio device or telephone if there is interference from a nearby single sideband phone transmitter?

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

G8B09

14. Why is it good to match receiver bandwidth to the bandwidth of the operating mode?

• A. It results in the best signal-to-noise ratio
• B. It improves impedance matching of the antenna
• C. It is required by FCC rules
• D. It minimizes power consumption in the receiver

G1C01

15. What is the maximum transmitting power an amateur station may use on 10.140 MHz?

• A. 1500 watts PEP output
• B. 2000 watts PEP output
• C. 200 watts PEP output
• D. 1000 watts PEP output

G7B11

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

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

G4A01

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

• A. To enhance the reception of a specific frequency on a crowded band
• B. To restrict the transmitter voice bandwidth
• C. To eliminate receiver interference from impulse noise sources
• D. To reduce interference from carriers in the receiver passband

G9C02

18. What is the approximate length of the driven element of a Yagi antenna?

• A. 1 wavelength
• B. 1/2 wavelength
• C. 3/4 wavelength
• D. 1/4 wavelength

G0A09

19. What type of instrument can be used to accurately measure an RF field?

• A. A calibrated field strength meter with a calibrated antenna
• B. An SWR meter with a peak-reading function
• C. A receiver with an S meter
• D. An oscilloscope with a high-stability crystal marker generator

G4E05

20. Which of the following most limits an HF mobile installation?

• A. Efficiency of the electrically short antenna
• B. The wire gauge of the DC power line to the transceiver
• C. FCC rules limiting mobile output power on the 75-meter band
• D. "Picket fencing"

G1D04

21. Which of the following is a requirement for administering a Technician class license examination?

• A. At least three VEs of Technician class or higher must observe the examination
• B. At least two General class or higher VEs must be present, but only one need be Amateur Extra class
• C. At least three General class or higher VEs must observe the examination
• D. At least two General class or higher VEs must be present

G1A08

22. Which of the following frequencies is within the General class portion of the 80-meter band?

• A. 1855 kHz
• B. 3560 kHz
• C. 3650 kHz
• D. 2560 kHz

G2C04

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

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

G5A02

24. What is reactance?

• A. A property of ideal resistors in AC circuits
• B. Opposition to the flow of alternating current caused by capacitance or inductance
• C. Opposition to the flow of direct current caused by resistance
• D. A large spark produced at switch contacts when an inductor is de-energized

G8A09

25. What type of modulation is used by the FT8 digital mode?

• A. 8-tone frequency shift keying
• B. Amplitude compressed AM
• C. Direct sequence spread spectrum
• D. Vestigial sideband

G2D11

26. Which of the following is typical of the lower HF frequencies during the summer?

• A. Poor propagation at any time of day
• B. High levels of atmospheric noise or "static"
• C. Heavy distortion on signals due to photon absorption
• D. World-wide propagation during the daylight hours

G3A11

27. How long does it take charged particles from coronal mass ejections to affect radio propagation on Earth?

• A. 20 to 40 hours
• B. 4 to 8 minutes
• C. 28 days
• D. 14 days

G0B08

28. What should be done by any person preparing to climb a tower that supports electrically powered devices?

• A. All these choices are correct
• B. Unground the base of the tower
• C. Notify the electric company that a person will be working on the tower
• D. Make sure all circuits that supply power to the tower are locked out and tagged

G3C04

29. What does the term "critical angle" mean, as used in radio wave propagation?

• A. The lowest takeoff angle that will return a radio wave to Earth under specific ionospheric conditions
• B. The highest takeoff angle that will return a radio wave to Earth under specific ionospheric conditions
• C. The long path azimuth of a distant station
• D. The short path azimuth of a distant station

G1B03

30. Which of the following is a purpose of a beacon station as identified in the FCC rules?

• A. Identifying net frequencies
• B. Observation of propagation and reception
• C. Automatic identification of repeaters
• D. Transmission of bulletins of general interest to Amateur Radio licensees

G6B12

31. Which of these connector types is commonly used for audio signals in Amateur Radio stations?

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

G4B06

32. What is an advantage of a digital voltmeter as compared to an analog voltmeter?

• A. Faster response
• B. Better for RF measurements
• C. Better precision for most uses
• D. Better for measuring computer circuits

G2E04

33. What segment of the 20-meter band is most often used for digital transmissions (avoiding the DX propagation beacons)?

• A. 14.150 - 14.225 MHz
• B. 14.275 - 14.350 MHz
• C. 14.000 - 14.050 MHz
• D. 14.070 - 14.112 MHz

G5C14

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

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

G1E07

35. In what part of the 13-centimeter band may an amateur station communicate with non-licensed Wi-Fi stations?

• A. No part
• B. Anywhere in the band
• C. Channels 42 through 45
• D. Channels 1 through 4