Practice Exam

Element 3: General

G3C10

1. What is Near Vertical Incidence Skywave (NVIS) propagation?

G9B12

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

G9C04

3. How does antenna gain stated in dBi compare to gain stated in dBd for the same antenna?

G1E03

4. What is required to conduct communications with a digital station operating under automatic control outside the automatic control band segments?

G3A04

5. Which of the following are least reliable for long-distance communications during periods of low solar activity?

G4C03

6. What sound is heard from an audio device or telephone if there is interference from a nearby single sideband phone transmitter?

G6B04

7. What is meant by the term ROM?

G4D08

8. What frequency range is occupied by a 3 kHz LSB signal when the displayed carrier frequency is set to 7.178 MHz?

G7C02

9. Which circuit is used to combine signals from the carrier oscillator and speech amplifier then send the result to the filter in some single sideband phone transmitters?

G2B02

10. What is the first thing you should do if you are communicating with another amateur station and hear a station in distress break in?

G3B04

11. What is a reliable way to determine if the MUF is high enough to support skip propagation between your station and a distant location on frequencies between 14 and 30 MHz?

G2D06

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

G9A04

13. What might cause reflected power at the point where a feed line connects to an antenna?

G6A04

14. Which of the following is an advantage of an electrolytic capacitor?

G8B02

15. If a receiver mixes a 13.800 MHz VFO with a 14.255 MHz received signal to produce a 455 kHz intermediate frequency (IF) signal, what type of interference will a 13.345 MHz signal produce in the receiver?

G2A05

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

G1C11

17. What is the maximum symbol rate permitted for RTTY or data emission transmissions on the 2-meter band?

G0B08

18. What should be done by any person preparing to climb a tower that supports electrically powered devices?

G4B12

19. What problem can occur when making measurements on an antenna system with an antenna analyzer?

G7B09

20. What determines the frequency of an LC oscillator?

G1D09

21. How long is a Certificate of Successful Completion of Examination (CSCE) valid for exam element credit?

G8A06

22. Which of the following is characteristic of QPSK31?

G1B02

23. Which of the following is true concerning access to frequencies?

G0A04

24. What does "time averaging" mean in reference to RF radiation exposure?

G5B04

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

G5A07

26. What happens when the impedance of an electrical load is equal to the output impedance of a power source, assuming both impedances are resistive?

G2C01

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

G7A03

28. Which type of rectifier circuit uses two diodes and a center-tapped transformer?

G5C01

29. What causes a voltage to appear across the secondary winding of a transformer when an AC voltage source is connected across its primary winding?

G4A07

30. What condition can lead to permanent damage to a solid-state RF power amplifier?

G1A04

31. Which of the following amateur bands is restricted to communication only on specific channels, rather than frequency ranges?

G4E06

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

G2E11

33. Which of the following is characteristic of the FT8 mode of the WSJT-X family?

G8C02

34. Which digital mode is used as a low-power beacon for assessing HF propagation?

G9D11

35. Which of the following is a disadvantage of multiband antennas?