E6F10
1. What is the most common material used in power-generating photovoltaic cells?
E7H07
2. How can an oscillator's microphonic responses be reduced?
E6A04
3. What is the name given to an impurity atom that adds holes to a semiconductor crystal structure?
E8A11
4. Which of the following is a measure of the quality of an analog-to-digital converter?
E8D10
5. What are some of the differences between the Baudot digital code and ASCII?
E0A12
6. Where should a shock-absorbing lanyard be attached to a tower when working above ground?
E6E04
7. Which is the most common input and output impedance of MMICs?
E9A07
8. What is the effective isotropic radiated power (EIRP) of a repeater station with 200 watts transmitter power output, 2 dB feed line loss, 2.8 dB duplexer loss, 1.2 dB circulator loss, and 7 dBi antenna gain?
E2D08
9. What type of packet frame is used to transmit APRS beacon data?
E6D12
10. What causes inductor saturation?
E7G10
11. What absolute voltage gain can be expected from the circuit in Figure E7-3 when R1 is 1,800 ohms and RF is 68 kilohms?
E9B02
12. What is the front-to-back ratio of the antenna radiation pattern shown in Figure E9-1?
E2E11
13. What is the difference between direct FSK and audio FSK?
E4E09
14. What undesirable effect can occur when using a noise blanker?
E6C01
15. What is the function of hysteresis in a comparator?
E7B08
16. Why are switching amplifiers more efficient than linear amplifiers?
E5B11
17. What is the phase angle between the voltage across and the current through a series RLC circuit if XC is 25 ohms, R is 100 ohms, and XL is 75 ohms?
E5C03
18. Which of the following represents a pure inductive reactance in polar coordinates?
E3B05
19. Which of the following paths is most likely to support long-distance propagation on 160 meters?
E9F11
20. What impedance does a 1/8-wavelength transmission line present to an RF generator when the line is open at the far end?
E4D14
21. What power level does a receiver minimum discernible signal of -100 dBm represent?
E5A08
22. What is the phase relationship between the current through and the voltage across a series resonant circuit at resonance?
E7E01
23. Which of the following can be used to generate FM phone signals?
E1A04
24. May an Extra class operator answer the CQ of a station on 3.601 MHz LSB phone?
E9D06
25. What happens to SWR bandwidth when one or more loading coils are used to resonate an electrically short antenna?
E5D01
26. What is the result of conductor skin effect?
E1D04
27. Which of the following is required in the identification transmissions from a balloon-borne telemetry station?
E4B01
28. Which of the following factors most affects the accuracy of a frequency counter?
E9C08
29. What is a folded dipole antenna?
E2B05
30. Which of the following describes the use of vestigial sideband in analog fast-scan TV transmissions?
E7C06
31. What are the characteristics of an elliptical filter?
E7D03
32. What device is used as a stable voltage reference?
E9H03
33. What is receiving directivity factor (RDF)?
E1F07
34. When may an amateur station send a message to a business?
E9E08
35. What is a use for a Wilkinson divider?
E8C11
36. What is the relationship between symbol rate and baud?
E2A10
37. What type of satellite appears to stay in one position in the sky?
E1C11
38. Which of the following operating arrangements allows an FCC-licensed US citizen to operate in many European countries, and amateurs from many European countries to operate in the US?
E1E11
39. What must the VE team do if an examinee scores a passing grade on all examination elements needed for an upgrade or new license?
E2C07
40. What is the Cabrillo format?
E4C13
41. What is reciprocal mixing?
E3A01
42. What is the approximate maximum separation measured along the surface of the Earth between two stations communicating by EME?
E4A09
43. Which of the following is good practice when using an oscilloscope probe?
E7A05
44. Which of the following circuits continuously alternates between two states without an external clock signal?
E7F14
45. Which of the following would allow a digital signal processing filter to create a sharper filter response?
E3C08
46. Which of the following is the space-weather term for an extreme geomagnetic storm?
E1B06
47. Which of the following additional rules apply if you are erecting an amateur station antenna structure at a site at or near a public use airport?
E9G08
48. How is a Smith chart normalized?
E6B06
49. Which of the following is a common use of a Schottky diode?
E8B02
50. How does the modulation index of a phase-modulated emission vary with RF carrier frequency?
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