Practice Exam

G4B10

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

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

G7C14

2. The bandwidth of a band-pass filter is measured between what two frequencies?

• A. Image and harmonic
• B. Upper and lower half-power
• C. Pole and zero
• D. Cutoff and rolloff

G1D04

3. Who must observe the administration of a Technician class license examination?

• A. At least two Volunteer Examiners of General class or higher
• B. At least three Volunteer Examiners of Technician class
• C. At least three Volunteer Examiners of General class or higher
• D. At least two Volunteer Examiners of Technician class or higher

G5B04

4. How many watts of electrical power are consumed by a 12 VDC light bulb that draws 0.2 amperes?

• A. 2.4 watts
• B. 24 watts
• C. 60 watts
• D. 6 watts

G0A12

5. What stations are subject to the FCC rules on RF exposure?

• A. All commercial stations; amateur radio stations are exempt
• B. Only stations with antennas lower than one wavelength above the ground
• C. Only stations transmitting more than 500 watts PEP
• D. All stations with a time-averaged transmission of more than one milliwatt

G7B01

6. What is the purpose of neutralizing an amplifier?

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

G8A13

7. What is a link budget?

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

G8C12

8. Which type of code is used for sending characters in a PSK31 signal?

• A. Varicode
• B. Viterbi
• C. Volumetric
• D. Binary

G9B12

9. What is the approximate length for a 1/4 wave monopole antenna cut for 28.5 MHz?

• A. 8 feet
• B. 21 feet
• C. 11 feet
• D. 16 feet

G4E02

10. What is the purpose of a corona ball on an HF mobile antenna?

• A. To narrow the operating bandwidth of the antenna
• B. To increase the "Q" of the antenna
• C. To reduce the chance of damage if the antenna should strike an object
• D. To reduce RF voltage discharge from the tip of the antenna while transmitting

G3C03

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

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

G9A06

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

• A. Decibels per 1,000 feet
• B. Ohms per 100 feet
• C. Ohms per 1,000 feet
• D. Decibels per 100 feet

G8B05

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

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

G1E01

14. Which of the following would disqualify a third party from participating in sending a message via an amateur station?

• A. The third party's amateur license has been revoked and not reinstated
• B. All these choices are correct
• C. The third party is not a US citizen
• D. The third party is speaking in a language other than English

G6B08

15. How is an LED biased when emitting light?

• A. At the Zener voltage
• B. Reverse biased
• C. In the tunnel-effect region
• D. Forward biased

G9C10

16. Which of the following can be adjusted to optimize forward gain, front-to-back ratio, or SWR bandwidth of a Yagi antenna?

• A. The physical length of the boom
• B. All these choices are correct
• C. The spacing of each element along the boom
• D. The number of elements on the boom

G5C07

17. What transformer turns ratio matches an antenna's 600-ohm feed point impedance to a 50-ohm coaxial cable?

• A. 3.5 to 1
• B. 12 to 1
• C. 24 to 1
• D. 144 to 1

G2C07

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

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

G6A09

19. Which of the following describes MOSFET construction?

• A. The source is separated from the drain by a thin insulating layer
• B. The gate is separated from the channel by a thin insulating layer
• C. The source is formed by depositing metal on silicon
• D. The gate is formed by a back-biased junction

G7A08

20. Which of the following is characteristic of a switchmode power supply as compared to a linear power supply?

• A. Fewer circuit components are required
• B. Faster switching time makes higher output voltage possible
• C. High-frequency operation allows the use of smaller components
• D. Inherently more stable

G3A09

21. How can high geomagnetic activity benefit radio communications?

• A. Reduce long delayed echoes
• B. Improve HF long path propagation
• C. Increases signal strength for HF signals passing through the polar regions
• D. Creates auroras that can reflect VHF signals

G2B07

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

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

G9D12

23. What is the common name of a dipole with a single central support?

• A. Inverted L
• B. Sloper
• C. Inverted V
• D. Lazy H

G4D02

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

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

G1B03

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

• A. Transmission of bulletins of general interest to amateur radio licensees
• B. Automatic identification of repeaters
• C. Observation of propagation and reception
• D. All these choices are correct

G2E07

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

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

G4A13

27. What is the purpose of using a receive attenuator?

• A. To reduce power consumption when operating from batteries
• B. To prevent receiver overload from strong incoming signals
• C. To reduce the transmitter power when driving a linear amplifier
• D. To reduce excessive audio level on strong signals

G5A02

28. What is reactance?

• A. Reinforcement of the flow of alternating current caused by capacitance or inductance
• B. Opposition to the flow of direct current caused by resistance
• C. Reinforcement of the flow of direct current caused by resistance
• D. Opposition to the flow of alternating current caused by capacitance or inductance

G2A05

29. Which mode of voice communication is most commonly used on the HF amateur bands?

• A. Single sideband
• B. Single phase modulation
• C. Double sideband
• D. Frequency modulation

G0B08

30. What should be done before climbing a tower that supports electrically powered devices?

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

G4C03

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

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

G3B07

32. What does LUF stand for?

• A. Lowest Usable Frequency for communications to any point outside a 100-mile radius
• B. The Lowest Usable Frequency during a 24-hour period
• C. Lowest Usable Frequency during the past 60 minutes
• D. The Lowest Usable Frequency for communications between two specific points

G2D05

33. Which of the following indicates that you are looking for an HF contact with any station?

• A. Say "QTC" followed by "this is" and your call sign -- if no answer, change frequency and repeat
• B. Sign your call sign once, followed by the words "listening for a call" -- if no answer, change frequency and repeat
• C. Transmit an unmodulated carried for approximately 10 seconds, followed by "this is" and your call sign, and pause to listen -- repeat as necessary
• D. Repeat "CQ" a few times, followed by "this is," then your call sign a few times, then pause to listen, repeat as necessary

G1A11

34. When General class licensees are not permitted to use the entire voice portion of a band, which portion of the voice segment is available to them?

• A. The lower frequency portion on frequencies below 7.3 MHz, and the upper portion on frequencies above 14.150 MHz
• B. The upper frequency portion
• C. The upper frequency portion on frequencies below 7.3 MHz, and the lower portion on frequencies above 14.150 MHz
• D. The lower frequency portion

G1C06

35. What is the limit for transmitter power on the 1.8 MHz band?

• A. 1500 watts PEP output
• B. 1200 watts PEP output
• C. 1000 watts PEP output
• D. 200 watts PEP output