Technician exam question T0C10
Subelement T0, SAFETY· Group T0C
Why is duty cycle one of the factors used to determine safe RF radiation exposure levels?
- A.It affects the average exposure to radiation (correct answer)
- B.It affects the peak exposure to radiation
- C.It takes into account the antenna feed line loss
- D.It takes into account the thermal effects of the final amplifier
WhyDuty cycle is one of the factors used to determine safe RF exposure levels because it affects the average exposure to radiation. Duty cycle describes what fraction of the time a transmitter is actually radiating, which directly determines the average power someone nearby is exposed to over time, the quantity RF exposure limits are actually built around, answer A. It doesn't change the instantaneous peak exposure during an active transmission (B), and it has nothing to do with feed line loss (C) or the final amplifier's thermal behavior (D), those are separate engineering concerns.
Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2026-2030 NCVEC Element 2 pool (public domain); the explanation above is original writing, see our methodology.
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