9. Any signal can be expressed as the sum of possibly infinite, series of and cosines, square waves). 10. Given a carrier frequency of 100 kHz and a modulating frequency of 5 kHz, the bandwidth of AM transmission is 11. The pilot carrier is an extra signal added to a modulated AM signal, to achieve (asynchronous, synchronous, an efficient, reliable). 12. The signal is said to be non-periodic, deterministic, energy). (pulses, impulses, sines (5, 200, 10, 105) kHz. modulation. if it could be expressed mathematically as a function of time. (periodic,

Which of the following statements about equipment grounding conductors (EGCS) is true? A. The National Electrical Code permits the EGC to also perform as a grounding electrode conductor. B. More than one EGC must be used if multiple circuits are installed in a single raceway, cable, or cable tray. C. No current should be present in the EGC during normal operation. D. EGCs are required to be decreased in size to address voltage drop.

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