Practice Exam

Element 3: General (EXPIRED)

G9A02

1. What are the typical characteristic impedances of coaxial cables used for antenna feed lines at amateur stations?

G2C05

2. What is the best speed to use answering a CQ in Morse Code?

G2A04

3. Which mode is most commonly used for voice communications on the 17 and 12 meter bands?

G2E09

4. In what segment of the 20 meter band are most PSK31 operations commonly found?

G3B01

5. How might a sky-wave signal sound if it arrives at your receiver by both short path and long path propagation?

G0B09

6. Why should soldered joints not be used with the wires that connect the base of a tower to a system of ground rods?

G2D11

7. Which HF antenna would be the best to use for minimizing interference?

G9B02

8. What is an advantage of downward sloping radials on a quarter wave ground-plane antenna?

G5B10

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

G2B08

10. What is the "DX window" in a voluntary band plan?

G8B01

11. What receiver stage combines a 14.250 MHz input signal with a 13.795 MHz oscillator signal to produce a 455 kHz intermediate frequency (IF) signal?

G8A04

12. What emission is produced by a reactance modulator connected to an RF power amplifier?

G1D01

13. Which of the following is a proper way to identify when transmitting using phone on General Class frequencies if you have a CSCE for the required elements but your upgrade from Technician has not appeared in the FCC database?

G6B12

14. What is the primary purpose of a screen grid in a vacuum tube?

G5A10

15. What unit is used to measure impedance?

G1B07

16. What are the restrictions on the use of abbreviations or procedural signals in the Amateur Service?

G4C05

17. What might be the problem if you receive an RF burn when touching your equipment while transmitting on an HF band, assuming the equipment is connected to a ground rod?

G7A03

18. What is the peak-inverse-voltage across the rectifiers in a full-wave bridge power supply?

G6C14

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

G1A08

20. Which of the following frequencies is within the General Class portion of the 20 meter phone band?

G3C05

21. Why is long distance communication on the 40, 60, 80 and 160 meter bands more difficult during the day?

G9C04

22. Which statement about a three-element; single-band Yagi antenna is true?

G9D06

23. Which of the following is an advantage of a log periodic antenna?

G1E10

24. What portion of the 10 meter band is available for repeater use?

G7C11

25. What is meant by the term "software defined radio" (SDR)?

G5C08

26. What is the equivalent capacitance of two 5000 picofarad capacitors and one 750 picofarad capacitor connected in parallel?

G6A06

27. What will happen to the resistance if the temperature of a resistor is increased?

G4E01

28. What is a "capacitance hat", when referring to a mobile antenna?

G4A06

29. What type of device is often used to enable matching the transmitter output to an impedance other than 50 ohms?

G7B12

30. Which of these classes of amplifiers has the highest efficiency?

G4B04

31. What signal source is connected to the vertical input of an oscilloscope when checking the RF envelope pattern of a transmitted signal?

G3A14

32. How are radio communications usually affected by the charged particles that reach the Earth from solar coronal holes?

G0A05

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

G4D07

34. 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?

G1C08

35. What is the maximum symbol rate permitted for RTTY or data emission transmitted at frequencies below 28 MHz?