Extra Practice Exam

E1A 1. Transmitting LSB voice, your carrier must sit at least how far above the band's lower edge?

E1B 2. The National Radio Quiet Zone exists to protect:

E1C 3. If an automatically controlled station's control link fails, transmissions must stop within:

E1D 4. Telecommand of a model craft is limited to:

E1E 5. Each exam session's results must be certified by:

E1F 6. North of Line A, amateurs may not transmit in:

E2A 7. A satellite's ascending pass moves:

E2B 8. Vestigial sideband transmission is used to:

E2C 9. Contest operation is excluded from which band?

E2D 10. The digital mode designed for EME work is:

E2E 11. FT8 transmit-and-receive cycles last:

E3A 12. Radiation from a solar flare reaches Earth in about:

E3B 13. Transequatorial propagation carries VHF signals:

E3C 14. Geomagnetic trouble is most likely when the interplanetary magnetic field's Bz points:

E4A 15. An oscilloscope probe's ground lead is kept short to:

E4B 16. In S-parameter terms, S11 is:

E4C 17. A receiver's minimum discernible signal (MDS) is:

E4D 18. A strong nearby signal that quiets your receiver's sensitivity is causing:

E4E 19. Common-mode current is distinguished by flowing:

E5A 20. A 7.1 MHz resonant circuit with Q of 150 has a half-power bandwidth of about:

E5B 21. In a purely capacitive circuit, current:

E5C 22. On the impedance grid shown, 300 ohms resistance in series with 400 ohms capacitive reactance lands on:

E5D 23. At RF, conductor resistance rises with frequency because of:

E6A 24. Reverse bias applied to a semiconductor junction makes its depletion region:

E6B 25. The diode used as a voltage-controlled capacitor is the:

E6C 26. A tri-state logic output can present:

E6D 27. Compared with powdered iron, a ferrite core inductor needs:

E6E 28. MMIC amplifiers are conventionally designed around an impedance of:

E6F 29. An optoisolator pairs an LED with:

E7A 30. Four cascaded flip-flops divide an input frequency by:

E7B 31. Class C amplification is unusable for SSB because it:

E7C 32. Ripple in the passband with a sharp cutoff marks a:

E7D 33. Switchmode supplies use small transformers because they:

E7E 34. A reactance modulator acting on the oscillator produces:

E7F 35. The FIR filter's prized property unavailable to IIR designs is:

E7G 36. An inverting op-amp stage's voltage gain is set by:

E7H 37. The Colpitts oscillator is identified by its:

E8A 38. A square wave is a fundamental plus its:

E8B 39. Deviation ratio is maximum deviation divided by:

E8C 40. Gray code aids digital transmission because adjacent values differ by:

E8D 41. Direct-sequence spread spectrum spreads the signal using:

E9A 42. Antenna efficiency equals radiation resistance divided by:

E9B 43. From the pattern shown, the front-to-back ratio is:

E9C 44. Two half-wave elements fed in phase radiate strongest:

E9D 45. A loading coil for a short antenna should have high Q to:

E9E 46. Matching a 100-ohm antenna to 50-ohm line with a quarter-wave section calls for line of about:

E9F 47. A shorted quarter-wavelength transmission line stub presents:

E9G 48. The two coordinate families printed on a Smith chart are:

E9H 49. The classic receiving antenna for 160-meter DX work is the:

E0A 50. Compared with controlled environments, uncontrolled-environment MPE limits are: