एक त्रिकोणीय चेतावनी सड़क चिह्न, जिसमें एक कार के पहियों से छोटे पत्थर या बजरी उड़ते हुए दिखाए गए हैं, निम्नलिखित में से किसे दर्शाता है?

A vehicle is stopped inside a roundabout waiting for space to exit, and you have just reached the entry line of the roundabout. What must you do?

You are taking a U-turn at an intersection, and a straight-moving car is approaching from the opposite direction. Who has the right-of-way?