Practice Exam

Element 3: General

G3C05

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

G8A12

2. Which of the following narrow-band digital modes can receive signals with very low signal-to-noise ratios?

G6A10

3. Which element of a triode vacuum tube is used to regulate the flow of electrons between cathode and plate?

G2C11

4. What does the Q signal "QRV" mean?

G3B07

5. What does LUF stand for?

G5C04

6. What is the total resistance of three 100 ohm resistors in parallel?

G9C08

7. What is meant by the "main lobe" of a directive antenna?

G4B02

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

G6B10

9. How does a ferrite bead or core reduce common-mode RF current on the shield of a coaxial cable?

G4A06

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

G9B11

11. What is the approximate length for a 1/2 wave dipole antenna cut for 3.550 MHz?

G0B05

12. Which of the following conditions will cause a Ground Fault Circuit Interrupter (GFCI) to disconnect the 120 or 240 Volt AC line power to a device?

G1B04

13. Which of the following transmissions is permitted?

G2A03

14. Which of the following is most commonly used for SSB voice communications in the VHF and UHF bands?

G1C07

15. What is the maximum symbol rate permitted for RTTY or data emission transmission on the 20-meter band?

G2B09

16. Who may be the control operator of an amateur station transmitting in RACES to assist relief operations during a disaster?

G1A11

17. When General class licensees are not permitted to use the entire voice portion of a band, which portion of the voice segment is generally available to them?

G3A14

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

G2D04

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

G7A02

20. Which of the following components are used in a power supply filter network?

G4E07

21. Which of the following may cause receive interference in a radio installed in a vehicle?

G9D06

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

G7C06

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

G5B05

24. How many watts are dissipated when a current of 7.0 milliamperes flows through a 1250 ohm resistance?

G8B10

25. What is the relationship between transmitted symbol rate and bandwidth?

G4D02

26. Which of the following describes how a speech processor affects a transmitted single sideband phone signal?

G2E10

27. Which of the following is a way to establish contact with a digital messaging system gateway station?

G8C02

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

G0A07

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

G9A07

30. What must be done to prevent standing waves on an antenna feed line?

G1D09

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

G4C07

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

G7B08

33. How is the efficiency of an RF power amplifier determined?

G1E03

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

G5A04

35. Which of the following causes opposition to the flow of alternating current in a capacitor?