Which arm signal indicates a left turn?

• A. Slow or Stop
• B. Left Turn
• C. Right Turn
• D. U Turn

Answer: (B)

Arm signals are a way to communicate your intended movement to other drivers when signals aren’t working or when you’re riding a bicycle or motorcycle. For a left turn, you extend your left arm straight out to the side at roughly shoulder height. This horizontal position clearly shows that you plan to go left, giving drivers behind you a clear cue of your next move.

The other common arm signals indicate different actions: bending the left arm upward at a 90-degree angle signals a right turn, and bending the left arm downward signals slowing or stopping. A U-turn isn’t represented by a standard single-arm position in these basic signals, so the straight-left signal is the correct indicator for turning left.