Technician exam question T6A08
Subelement T6, ELECTRONIC AND ELECTRICAL COMPONENTS· Group T6A
T6A08
What is the function of an SPDT switch?
- A.A single circuit is opened or closed
- B.Two circuits are opened or closed
- C.A single circuit is switched between one of two other circuits (correct answer)
- D.Two circuits are each switched between one of two other circuits
WhyAn SPDT switch switches a single circuit between one of two other circuits. SPDT stands for single-pole, double-throw: a single common circuit that gets switched between one of two other circuits, answer C. A, a single circuit simply opened or closed, describes an SPST switch instead, B describes switching two separate circuits rather than one common one, and D describes a DPDT switch, which handles two poles at once.
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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