Your turn signal lights stop working while you drive. What must you do to signal turns?
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A.
Use hand-and-arm signals in place of the lights. Correct
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B.
Use your horn to warn drivers behind you before each turn.
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C.
Drive with your hazards on until you reach a mechanic.
The answer is "Use hand-and-arm signals in place of the lights."
When your signal lights are not functioning, use the hand-and-arm signals the manual pictures for left, right, and slow or stop. Option C tempts drivers who carry over the broken-down-vehicle flasher rule to a moving turn, missing that flashers point at a hazard rather than showing which way you plan to go.
The traps in the wrong answers
B. Use your horn to warn drivers behind you before each turn.
The horn is reserved for avoiding collisions and warning oncoming traffic on narrow mountain roads, not for signaling turns. Treats the horn as a general attention-getter, carrying over the parking-lot habit of tapping it to make people notice you.
C. Drive with your hazards on until you reach a mechanic.
Emergency flashers warn drivers behind you about a hazard ahead or vehicle trouble; they point at trouble, not at which direction you plan to turn. Confuses the vehicle-trouble flasher rule with a signaling tool, treating any equipment failure as reason to leave flashers on while driving.
This question tests your knowledge of Vehicle Equipment in California. Source: California Driver Manual, "Signals, Horns, And Headlights: Signaling," p.10..
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