Practice Exam

Element 3: General

G9C11

1. What is a beta or hairpin match?

G2D04

2. Which of the following describes an azimuthal projection map?

G2B05

3. When selecting an SSB transmitting frequency, what minimum separation should be used to minimize interference to stations on adjacent frequencies?

G7C02

4. What output is produced by a balanced modulator?

G1D07

5. Volunteer Examiners are accredited by what organization?

G8B02

6. What is the term for interference from a signal at twice the IF frequency from the desired signal?

G3A02

7. What effect does a sudden ionospheric disturbance have on the daytime ionospheric propagation?

G9B07

8. How does the feed point impedance of a horizontal 1/2 wave dipole antenna change as the antenna height is reduced to 1/10 wavelength above ground?

G7A06

9. What portion of the AC cycle is converted to DC by a full-wave rectifier?

G2C08

10. What prosign is sent to indicate the end of a formal message when using CW?

G2E01

11. Which mode is normally used when sending RTTY signals via AFSK with an SSB transmitter?

G4A04

12. What is the effect on plate current of the correct setting of a vacuum-tube RF power amplifier's TUNE control?

G6A05

13. What is the approximate forward threshold voltage of a silicon junction diode?

G1C06

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

G0B08

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

G2A06

16. Which of the following is an advantage of using single sideband, as compared to other analog voice modes on the HF amateur bands?

G5A12

17. What occurs in an LC circuit at resonance?

G7B11

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

G8A12

19. What is QPSK modulation?

G1B01

20. 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?

G4E09

21. What is the approximate open-circuit voltage from a fully illuminated silicon photovoltaic cell?

G1E11

22. On what bands may automatically controlled stations transmitting RTTY or data emissions communicate with other automatically controlled digital stations?

G3B08

23. What does MUF stand for?

G6B07

24. Which of the following describes a type N connector?

G0A09

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

G3C11

26. Which ionospheric region is the most absorbent of signals below 10 MHz during daylight hours?

G4B02

27. Which of the following is an advantage of an oscilloscope versus a digital voltmeter?

G1A11

28. 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?

G8C05

29. In an ARQ mode, what is meant by a NAK response to a transmitted packet?

G4D05

30. How does a signal that reads 20 dB over S9 compare to one that reads S9 on a receiver, assuming a properly calibrated S meter?

G5C11

31. What is the inductance of a circuit with a 20-millihenry inductor connected in series with a 50-millihenry inductor?

G5B01

32. What dB change represents a factor of two increase or decrease in power?

G4C02

33. Which of the following could be a cause of interference covering a wide range of frequencies?

G9A05

34. How does the attenuation of coaxial cable change with increasing frequency?

G9D12

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