Practice Exam

Element 3: General (EXPIRED)

Figure

G7A09

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

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?

G8A09

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

G2E07

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

G6C12

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

G4A09

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

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?

G6A08

8. Which of the following describes a thermistor?

G2D06

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

G2B09

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

G4D01

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

G5B01

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

G9D05

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

G1D04

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

G1E05

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

G3A11

16. Approximately how long is the typical sunspot cycle?

G3C01

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

G6B10

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

G1C06

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

G4B07

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

G0A07

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

G3B12

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

G4C01

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

G8B10

24. What does the number 31 represent in PSK31?

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?

G9C14

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

G9B12

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

G2A05

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

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?

G2C01

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

G7B05

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

G5A05

32. How does an inductor react to AC?

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?

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?

G1A06

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