Practice Exam

Element 3: General

G6A13

1. Why is the polarity of applied voltages important for polarized capacitors?

G9B02

2. Which of the following is a common way to adjust the feed-point impedance of a quarter wave ground-plane vertical antenna to be approximately 50 ohms?

G4E09

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

G7C05

4. Which of the following is an advantage of a direct digital synthesizer (DDS)?

G3B05

5. What usually happens to radio waves with frequencies below the MUF and above the LUF when they are sent into the ionosphere?

G1C01

6. What is the maximum transmitting power an amateur station may use on 10.140 MHz?

G1D11

7. What is required to obtain a new General Class license after a previously-held license has expired and the two-year grace period has passed?

Figure

G7A13

8. Which symbol in Figure G7-1 represents a tapped inductor?

G2D10

9. What is QRP operation?

G3C02

10. Where on Earth do ionospheric layers reach their maximum height?

G9A04

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

G7B03

12. Which of the following describes the function of a two-input AND gate?

G2C05

13. What is the best speed to use when answering a CQ in Morse code?

G9D04

14. What is the primary purpose of antenna traps?

G8A09

15. What type of modulation is used by the FT8 digital mode?

G5A02

16. What is reactance?

G2A12

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

G0A05

18. What must you do if an evaluation of your station shows RF energy radiated from your station exceeds permissible limits?

G1E06

19. The frequency allocations of which ITU region apply to radio amateurs operating in North and South America?

G5C03

20. Which of the following components increases the total resistance of a resistor?

G2B07

21. Which of the following complies with good amateur practice when choosing a frequency on which to initiate a call?

G8B01

22. Which mixer input is varied or tuned to convert signals of different frequencies to an intermediate frequency (IF)?

G1A06

23. Which of the following frequencies is within the General class portion of the 75-meter phone band?

G4D07

24. 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?

G0B07

25. Which of these choices should be observed when climbing a tower using a safety belt or harness?

G9C07

26. What does "front-to-back ratio" mean in reference to a Yagi antenna?

G4C01

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

G3A11

28. How long does it take charged particles from coronal mass ejections to affect radio propagation on Earth?

G2E05

29. What is the standard sideband used to generate a JT65, JT9, or FT8 digital signal when using AFSK in any amateur band?

G5B10

30. What percentage of power loss would result from a transmission line loss of 1 dB?

G1B11

31. Who or what determines "good engineering and good amateur practice," as applied to the operation of an amateur station in all respects not covered by the Part 97 rules?

G4A01

32. What is the purpose of the "notch filter" found on many HF transceivers?

G8C03

33. What part of a packet radio frame contains the routing and handling information?

G6B01

34. What determines the performance of a ferrite core at different frequencies?

G4B11

35. Which of the following must be connected to an antenna analyzer when it is being used for SWR measurements?