Technician exam question T0B03
Subelement T0, SAFETY· Group T0B
Under what circumstances is it safe to climb a tower without a helper or observer?
- A.When no electrical work is being performed
- B.When no mechanical work is being performed
- C.When the work being done is not more than 20 feet above the ground
- D.Never (correct answer)
WhyIt's never safe to climb a tower without a helper or observer. A fall from height can happen instantly and without warning, so a tower should never be climbed alone, a helper or observer on the ground should always be present in case something goes wrong, answer D. There's no safe exception based on the type of work being done (A, B) or how high up the work is (C), the risk of an unassisted fall exists at any height and during any kind of task.
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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