In comparing a semiconductor diode to a vacuum tube diode, what statement is true?

Correct Answer: Option D — The semiconductor diode has longer life, no warm-up time, and is less delicate than the vacuum tube diode.

Solid-state semiconductor diodes outperform legacy vacuum tubes by eliminating heater warm-up time, offering virtually indefinite operational lifespans, and possessing rugged physical construction that resists marine vibration and mechanical shock in shipboard alarm systems.