Technician exam question T7C01
Subelement T7, PRACTICAL CIRCUITS· Group T7C
What is the primary purpose of a dummy load?
- A.To prevent transmitting signals over the air when making tests (correct answer)
- B.To prevent over-modulation of a transmitter
- C.To improve the efficiency of an antenna
- D.To improve the signal-to-noise ratio of a receiver
WhyA dummy load's primary purpose is to prevent transmitting signals over the air when making tests. A dummy load is a resistive load that absorbs a transmitter's output as heat instead of radiating it, letting an operator test or tune equipment without putting a signal on the air, answer A. It doesn't prevent over-modulation (B), improve antenna efficiency (C), or improve a receiver's signal-to-noise ratio (D), those aren't functions a resistive test load performs.
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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