Practice Exam

Element 3: General (After June 30)

G7C06

1. What should be the impedance of a low-pass filter as compared to the impedance of the transmission line into which it is inserted?

Figure

G7A12

2. Which symbol in Figure G7-1 represents a solid core transformer?

G9B06

3. Where should the radial wires of a ground-mounted vertical antenna system be placed?

G2C08

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

G1D06

5. When must you add the special identifier "AG" after your call sign if you are a Technician class licensee and have a Certificate of Successful Completion of Examination (CSCE) for General class operator privileges, but the FCC has not yet posted your upgrade on its website?

G8B06

6. What is the total bandwidth of an FM phone transmission having 5 kHz deviation and 3 kHz modulating frequency?

G2A01

7. Which sideband is most commonly used for voice communications on frequencies of 14 MHz or higher?

G6B12

8. Which of these connector types is commonly used for audio signals in Amateur Radio stations?

G1E10

9. Why should an amateur operator normally avoid transmitting on 14.100, 18.110, 21.150, 24. 930 and 28.200 MHz?

G5A03

10. Which of the following causes opposition to the flow of alternating current in an inductor?

G8A11

11. What is the modulation envelope of an AM signal?

G9C09

12. How does the gain of two three-element, horizontally polarized Yagi antennas spaced vertically 1/2 wavelength apart typically compare to the gain of a single three-element Yagi?

G3B01

13. What is a characteristic of skywave signals arriving at your location by both short-path and long-path propagation?

G1C10

14. What is the maximum symbol rate permitted for RTTY or data emission transmissions on the 10-meter band?

G4D07

15. How much must the power output of a transmitter be raised to change the S meter reading on a distant receiver from S8 to S9?

G3C01

16. Which ionospheric layer is closest to the surface of Earth?

G7B11

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

G3A12

18. What does the K-index indicate?

G2E13

19. Which communication system sometimes uses the internet to transfer messages?

G6A07

20. What are the stable operating points for a bipolar transistor used as a switch in a logic circuit?

G5B14

21. What is the output PEP from a transmitter if an oscilloscope measures 500 volts peak-to-peak across a 50 ohm resistive load connected to the transmitter output?

G4A06

22. What type of device is often used to match transmitter output impedance to an impedance not equal to 50 ohms?

G4E04

23. Why is it best NOT to draw the DC power for a 100 watt HF transceiver from a vehicle's auxiliary power socket?

G5C15

24. What is the total resistance of a 10 ohm, a 20 ohm, and a 50 ohm resistor connected in parallel?

G8C06

25. What action results from a failure to exchange information due to excessive transmission attempts when using PACTOR or WINMOR?

G9D10

26. In which direction or directions does an electrically small loop (less than 1/3 wavelength in circumference) have nulls in its radiation pattern?

G0B14

27. What precaution should you take whenever you adjust or repair an antenna?

G2D07

28. Which of the following are examples of the NATO Phonetic Alphabet?

G1A03

29. On which of the following bands is image transmission prohibited?

G0A07

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

G4B12

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

G2B08

32. What is the voluntary band plan restriction for U.S. station transmitting within the 48 contiguous states in the 50.1 to 50.125 MHz band segment?

G4C10

33. What could be a symptom of a ground loop somewhere in your station?

G1B02

34. With which of the following conditions must beacon stations comply?

G9A08

35. If the SWR on an antenna feed line is 5 to 1, and a matching network at the transmitter end of the feed line is adjusted to 1 to 1 SWR, what is the resulting SWR on the feed line?