Practice Exam

G7A09

1. Which symbol in figure G7-1 represents a field effect transistor?

• A. Symbol 2
• B. Symbol 4
• C. Symbol 1
• D. Symbol 5

G7C03

2. What circuit is used to process signals from the RF amplifier and local oscillator and send the result to the IF filter in a superheterodyne receiver?

• A. IF amplifier
• B. Detector
• C. Balanced modulator
• D. Mixer

G8A09

3. What control is typically adjusted for proper ALC setting on an amateur single sideband transceiver?

• A. Transmit audio or microphone gain
• B. The RF clipping level
• C. Attenuator level
• D. Antenna inductance or capacitance

G2E07

4. What does the abbreviation "RTTY" stand for?

• A. Returning to you
• B. Radioteletype
• C. Repeater transmission type
• D. A general call to all digital stations

G6C12

5. Which of the following connectors would be a good choice for a serial data port?

• A. Type N
• B. PL-259
• C. Type SMA
• D. DE-9

G4A09

6. Why is a time delay sometimes included in a transmitter keying circuit?

• A. To allow time for transmit-receive changeover operations to complete properly before RF output is allowed
• B. To allow time for a warning signal to be sent to other stations
• C. To allow the transmitter power regulators to charge properly
• D. To prevent stations from talking over each other

G1B01

7. What is the maximum height above ground to which an antenna structure may be erected without requiring notification to the FAA and registration with the FCC, provided it is not at or near a public use airport?

• A. 50 feet
• B. 100 feet
• C. 200 feet
• D. 300 feet

G6A08

8. Which of the following describes a thermistor?

• A. A special type of transistor for use at very cold temperatures
• B. A resistor that is resistant to changes in value with temperature variations
• C. A capacitor that changes value with temperature
• D. A device having a specific change in resistance with temperature variations

G2D06

9. How is a directional antenna pointed when making a "long-path" contact with another station?

• A. Along the gray line
• B. Toward the rising Sun
• C. Toward the north
• D. 180 degrees from its short-path heading

G2B09

10. Who may be the control operator of an amateur station transmitting in RACES to assist relief operations during a disaster?

• A. Only a person holding an FCC issued amateur operator license
• B. Any control operator when normal communication systems are operational
• C. A person holding an FCC issued amateur operator license or an appropriate government official
• D. Only a RACES net control operator

G4D01

11. What is the purpose of a speech processor as used in a modern transceiver?

• A. Increase the intelligibility of transmitted phone signals during poor conditions
• B. Decrease high-frequency voice output to prevent out of band operation
• C. Increase transmitter bass response for more natural sounding SSB signals
• D. Prevent distortion of voice signals

G5B01

12. A two-times increase or decrease in power results in a change of how many dB?

• A. Approximately 3 dB
• B. Approximately 2 dB
• C. Approximately 6 dB
• D. Approximately 12 dB

G9D05

13. What is the advantage of vertical stacking of horizontally polarized Yagi antennas?

• A. Narrows the main lobe in elevation
• B. Narrows the main lobe in azimuth
• C. Allows quick selection of vertical or horizontal polarization
• D. Allows simultaneous vertical and horizontal polarization

G1D04

14. Which of the following is a requirement for administering a Technician Class operator examination?

• A. At least two VEC accredited General Class or higher VEs must be present
• B. At least two General Class or higher VEs must be present, but only one need be VEC accredited
• C. At least three VEC accredited General Class or higher VEs must be present
• D. At least three VEs of Technician Class or higher must be present

G1E05

15. What types of messages for a third party in another country may be transmitted by an amateur station?

• A. Any message, as long as the amateur operator is not paid
• B. Only messages relating to Amateur Radio or remarks of a personal character, or messages relating to emergencies or disaster relief
• C. Only messages for other licensed amateurs
• D. Any messages, as long as the text of the message is recorded in the station log

G3A11

16. Approximately how long is the typical sunspot cycle?

• A. 11 years
• B. 28 days
• C. 40 hours
• D. 8 minutes

G3C01

17. Which of the following ionospheric layers is closest to the surface of the Earth?

• A. The E layer
• B. The D layer
• C. The F2 layer
• D. The F1 layer

G6B10

18. Which element of a triode vacuum tube is used to regulate the flow of electrons between cathode and plate?

• A. Screen Grid
• B. Heater
• C. Control grid
• D. Trigger electrode

G1C06

19. Which of the following is a limitation on transmitter power on the 1.8 MHz band?

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

G4B07

20. Which of the following might be a use for a field strength meter?

• A. A modulation monitor for a frequency or phase modulation transmitter
• B. Close-in radio direction-finding
• C. A keying indicator for a RTTY or packet transmitter
• D. An overmodulation indicator for a SSB transmitter

G0A07

21. What effect does transmitter duty cycle have when evaluating RF exposure?

• A. Low duty cycle transmitters are exempt from RF exposure evaluation requirements
• B. A lower transmitter duty cycle permits greater short-term exposure levels
• C. High duty cycle transmitters are exempt from RF exposure requirements
• D. A higher transmitter duty cycle permits greater short-term exposure levels

G3B12

22. What factors affect the Maximum Usable Frequency (MUF)?

• A. Path distance and location
• B. Time of day and season
• C. All of these choices are correct
• D. Solar radiation and ionospheric disturbances

G4C01

23. Which of the following might be useful in reducing RF interference to audio-frequency devices?

• A. Forward-biased diode
• B. Reverse-biased diode
• C. Bypass capacitor
• D. Bypass inductor

G8B10

24. What does the number 31 represent in PSK31?

• A. The number of characters that can be represented by PSK31
• B. The year in which PSK31 was invented
• C. The approximate transmitted symbol rate
• D. The version of the PSK protocol

G9A12

25. What would be the SWR if you feed a vertical antenna that has a 25-ohm feed-point impedance with 50-ohm coaxial cable?

• A. 2:1
• B. 2.5:1
• C. 1.25:1
• D. You cannot determine SWR from impedance values

G9C14

26. How does the forward gain of a two-element quad antenna compare to the forward gain of a three-element Yagi antenna?

• A. About twice as much
• B. About 2/3 as much
• C. About the same
• D. About 1.5 times as much

G9B12

27. What is the approximate length for a 1/4-wave vertical antenna cut for 28.5 MHz?

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

G2A05

28. Which mode of voice communication is most commonly used on the high frequency amateur bands?

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

G5C05

29. If three equal value resistors in parallel produce 50 ohms of resistance, and the same three resistors in series produce 450 ohms, what is the value of each resistor?

• A. 175 ohms
• B. 90 ohms
• C. 150 ohms
• D. 1500 ohms

G2C01

30. Which of the following describes full break-in telegraphy (QSK)?

• A. Breaking stations send the Morse code prosign BK
• B. Transmitting stations can receive between code characters and elements
• C. Automatic keyers are used to send Morse code instead of hand keys
• D. An operator must activate a manual send/receive switch before and after every transmission

G7B05

31. How many states does a 3-bit binary counter have?

• A. 8
• B. 6
• C. 3
• D. 16

G5A05

32. How does an inductor react to AC?

• A. As the frequency of the applied AC increases, the reactance increases
• B. As the amplitude of the applied AC increases, the reactance decreases
• C. As the amplitude of the applied AC increases, the reactance increases
• D. As the frequency of the applied AC increases, the reactance decreases

G4E10

33. What is the reason a series diode is connected between a solar panel and a storage battery that is being charged by the panel?

• A. The diode prevents self discharge of the battery though the panel during times of low or no illumination
• B. The diode limits the current flowing from the panel to a safe value
• C. The diode greatly increases the efficiency during times of high illumination
• D. The diode serves to regulate the charging voltage to prevent overcharge

G0B09

34. Why should soldered joints not be used with the wires that connect the base of a tower to a system of ground rods?

• A. Solder has too high a dielectric constant to provide adequate lightning protection
• B. The resistance of solder is too high
• C. A soldered joint will likely be destroyed by the heat of a lightning strike
• D. Solder flux will prevent a low conductivity connection

G1A06

35. Which of the following frequencies is in the 12 meter band?

• A. 12.940 MHz
• B. 17.940 MHz
• C. 3.940 MHz
• D. 24.940 MHz