Practice Exam

G8B11

1. What combination of a mixer's Local Oscillator (LO) and RF input frequencies is found in the output?

• A. The sum and difference
• B. The ratio
• C. The arithmetic product
• D. The average

G7A12

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

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

G4B07

3. What signals are used to conduct a two-tone test?

• A. Two non-harmonically related audio signals
• B. Two audio frequency range square wave signals of equal amplitude
• C. Two audio signals of the same frequency shifted 90 degrees
• D. Two swept frequency tones

G5C02

4. What is the output voltage if an input signal is applied to the secondary winding of a 4:1 voltage step-down transformer instead of the primary winding?

• A. The input voltage is multiplied by 4
• B. The input voltage is divided by 4
• C. Additional resistance must be added in parallel with the secondary to prevent overload
• D. Additional resistance must be added in series with the primary to prevent overload

G2E07

5. Which of the following is required when using FT8?

• A. A vertically polarized antenna
• B. Receiver attenuator set to -12 dB
• C. Computer time accurate to within approximately 1 second
• D. A special hardware modem

G9B02

6. Which of the following is a common way to adjust the feed point impedance of an elevated quarter-wave ground-plane vertical antenna to be approximately 50 ohms?

• A. Slope the radials upward
• B. Coil the radials
• C. Slope the radials downward
• D. Lengthen the radials beyond one wavelength

G6A08

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

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

G2A01

8. Which mode is most commonly used for voice communications on frequencies of 14 MHz or higher?

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

G1A01

9. On which HF and/or MF amateur bands are there portions where General class licensees cannot transmit?

• A. 80 meters, 20 meters, 15 meters, and 10 meters
• B. 80 meters, 40 meters, 20 meters, and 15 meters
• C. 60 meters, 30 meters, 17 meters, and 12 meters
• D. 160 meters, 60 meters, 15 meters, and 12 meters

G8C06

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

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

G2B07

11. Which of the following complies with commonly accepted amateur practice when choosing a frequency on which to initiate a call?

• A. Listen on the frequency for at least two minutes to be sure it is clear
• B. Follow the voluntary band plan
• C. Identify your station by transmitting your call sign at least 3 times
• D. All these choices are correct

G5B09

12. What is the RMS voltage of a sine wave with a value of 17 volts peak?

• A. 12 volts
• B. 34 volts
• C. 24 volts
• D. 8.5 volts

G7B04

13. In a Class A amplifier, what percentage of the time does the amplifying device conduct?

• A. 50%
• B. More than 50% but less than 100%
• C. Less than 50%
• D. 100%

G9D06

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

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

G0A05

15. What must you do if an evaluation of your station shows that the RF energy radiated by your station exceeds permissible limits for possible human absorption?

• A. Secure written permission from your neighbors to operate above the controlled MPE limits
• B. Take action to prevent human exposure to the excessive RF fields
• C. All these choices are correct
• D. File an Environmental Impact Statement (EIS-97) with the FCC

G9C02

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

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

G1B01

17. 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. 200 feet
• C. 250 feet
• D. 100 feet

G2D09

18. Which of the following is required when participating in a contest on HF frequencies?

• A. All these choices are correct
• B. Submit a log to the contest sponsor
• C. Identify your station according to normal FCC regulations
• D. Send a QSL card to the stations worked, or QSL via Logbook of The World

G0B09

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

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

G9A07

20. What must be done to prevent standing waves on a feed line connected to an antenna?

• A. The antenna feed point must be at DC ground potential
• B. The feed line must be an even number of physical half wavelengths long
• C. The antenna feed point impedance must be matched to the characteristic impedance of the feed line
• D. The feed line must be an odd number of electrical quarter wavelengths long

G3C07

21. What makes HF scatter signals often sound distorted?

• A. Energy is scattered into the skip zone through several different paths
• B. Ground waves are absorbing much of the signal
• C. The ionospheric region involved is unstable
• D. The E region is not present

G6B03

22. Which of the following is an advantage of CMOS integrated circuits compared to TTL integrated circuits?

• A. Better suited for RF amplification
• B. Low power consumption
• C. Better suited for power supply regulation
• D. High power handling capability

G4E06

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

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

G5A04

24. Which of the following is opposition to the flow of alternating current in a capacitor?

• A. Conductance
• B. Reluctance
• C. Reactance
• D. Admittance

G4D07

25. How much must the power output of a transmitter be raised to change the S meter reading on a distant receiver from S8 to S9?

• A. Approximately 8 times
• B. Approximately 2 times
• C. Approximately 1.5 times
• D. Approximately 4 times

G4A10

26. What is the function of an electronic keyer?

• A. Automatic transmit/receive switching
• B. Automatic generation of dots and dashes for CW operation
• C. Computer interface for PSK and RTTY operation
• D. To allow time for switching the antenna from the receiver to the transmitter

G1E07

27. In what part of the 2.4 GHz 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

G3A11

28. How long does it take a coronal mass ejection to affect radio propagation on Earth?

• A. 4 to 8 minutes
• B. 14 days
• C. 15 hours to several days
• D. 28 days

G2C10

29. What does the Q signal "QRN" mean?

• A. I am troubled by static
• B. Send more slowly
• C. Stop sending
• D. Zero beat my signal

G4C08

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

G1C03

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

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

G7C13

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

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

G8A13

33. What is a link budget?

• A. The sum of antenna gains minus system losses
• B. The difference between transmit power and receiver sensitivity
• C. The sum of transmit power and antenna gains minus system losses as seen at the receiver
• D. The financial costs associated with operating a radio link

G1D06

34. Until an upgrade to General class is shown in the FCC database, when must a Technician licensee identify with "AG" after their call sign?

• A. Whenever they operate on any amateur frequency
• B. A special identifier is not required if their General class license application has been filed with the FCC
• C. Whenever they operate using General class frequency privileges
• D. Whenever they operate using Technician frequency privileges

G3B08

35. What does MUF stand for?

• A. The Maximum Usable Frequency for communications between two points
• B. The Minimum Usable Frequency for communications between two points
• C. The Maximum Usable Frequency during a 24-hour period
• D. The Minimum Usable Frequency during a 24-hour period