Practice question

What is the importance of verifying the signal head visor (sun shield) installation during inspection?

Visors are decorative and not functional
Visors prevent sunlight from washing out the signal indication (sun phantom) and protect the lens from rain and snow accumulation
Visors are only needed in desert climates
Visors are being phased out and do not need inspection

Answer: B — Visors prevent sunlight from washing out the signal indication (sun phantom) and protect the lens from rain and snow accumulation

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