Practice Exam

Element 4: Extra (EXPIRED)

E1A11

1. What authorization or licensing is required when operating an amateur station aboard a US-registered vessel in international waters?

E6B08

2. Which of the following describes a type of semiconductor diode?

E6E12

3. What is a "Jones filter" as used as part of a HF receiver IF stage?

E3A04

4. What type of receiving system is desirable for EME communications?

E7F11

5. What is an advantage of a period-measuring frequency counter over a direct-count type?

Figure

E9G05

6. What type of chart is shown in Figure E9-3?

E1B04

7. What must be done before placing an amateur station within an officially designated wilderness area or wildlife preserve, or an area listed in the National Register of Historical Places?

E9A09

8. What is meant by antenna bandwidth?

E4D01

9. What is meant by the blocking dynamic range of a receiver?

E6D03

10. Which of the following is true of a charge-coupled device (CCD)?

Figure

E7G09

11. What will be the output voltage of the circuit shown in Figure E7-4 if R1 is 1000 ohms, RF is 10,000 ohms, and 0.23 volts dc is applied to the input?

E7C04

12. How does an impedance-matching circuit transform a complex impedance to a resistive impedance?

E1C05

13. When may an automatically controlled station originate third party communications?

E1F03

14. Under what circumstances may a dealer sell an external RF power amplifier capable of operation below 144 MHz if it has not been granted FCC certification?

E7E11

15. Which of the following types of detector is well suited for demodulating SSB signals?

E6F03

16. What is the most common configuration of an optoisolator or optocoupler?

E9F08

17. What is the term for the ratio of the actual speed at which a signal travels through a transmission line to the speed of light in a vacuum?

E9C13

18. What is the main effect of placing a vertical antenna over an imperfect ground?

E9D07

19. What is a disadvantage of using a multiband trapped antenna?

E5D17

20. How many watts are consumed in a circuit having a power factor of 0.6 if the input is 200V AC at 5 amperes?

E0A05

21. What is one of the potential hazards of using microwaves in the amateur radio bands?

E8B09

22. What is meant by deviation ratio?

Figure

E7D13

23. What is the purpose of D1 in the circuit shown in Figure E7-3?

E5B01

24. What is the term for the time required for the capacitor in an RC circuit to be charged to 63.2% of the applied voltage?

E5C09

25. When using rectangular coordinates to graph the impedance of a circuit, what does the horizontal axis represent?

E4C07

26. What does the MDS of a receiver represent?

E7B02

27. What is a Class D amplifier?

E1E07

28. What should a VE do if a candidate fails to comply with the examiner's instructions during an amateur operator license examination?

E5A05

29. What is the magnitude of the current at the input of a series RLC circuit as the frequency goes through resonance?

E2C02

30. Which of the following best describes the term "self-spotting" in regards to contest operating?

E4A12

31. Which of the following procedures is an important precaution to follow when connecting a spectrum analyzer to a transmitter output?

E8D05

32. If an RMS-reading AC voltmeter reads 65 volts on a sinusoidal waveform, what is the peak-to-peak voltage?

E2A01

33. What is the direction of an ascending pass for an amateur satellite?

E1D05

34. What class of licensee is authorized to be the control operator of a space station?

E3C07

35. How does the radiation pattern of a horizontally polarized 3-element beam antenna vary with its height above ground?

E2E09

36. Which of the following HF digital modes uses variable-length coding for bandwidth efficiency?

E3B05

37. Which amateur bands typically support long-path propagation?

E7A12

38. What is the name for logic which represents a logic "0" as a high voltage?

E4B15

39. Which of the following can be used as a relative measurement of the Q for a series-tuned circuit?

E6C03

40. Which of the following describes tri-state logic?

E2B08

41. Which of the following is a common method of transmitting accompanying audio with amateur fast-scan television?

E9H01

42. What is the effective radiated power relative to a dipole of a repeater station with 150 watts transmitter power output, 2-dB feed line loss, 2.2-dB duplexer loss and 7-dBd antenna gain?

E4E01

43. Which of the following types of receiver noise can often be reduced by use of a receiver noise blanker?

E7H15

44. Which of these functions can be performed by a phase-locked loop?

E8A06

45. What is the approximate ratio of PEP-to-average power in a typical single-sideband phone signal?

E6A01

46. In what application is gallium arsenide used as a semiconductor material in preference to germanium or silicon?

E9B11

47. What is a disadvantage of decreasing the number of wire segments in an antenna model below the guideline of 10 segments per half-wavelength?

E2D11

48. Which of the following data are used by the APRS network to communicate your location?

E9E11

49. What is an effective way of matching a feed line to a VHF or UHF antenna when the impedances of both the antenna and feed line are unknown?

E8C13

50. What is one advantage of using JT-65 coding?