Práctica CDL passenger endorsement

You are driving a bus on a rural road and approach a drawbridge. There is no signal light and no attendant. What does the CDL manual say to do?

• ASlow down and cross if no boat is in sight on the water.
• BStop at least 50 feet back and check that the draw is closed.
• CStop 15 feet before the draw and open the door to listen.
• DCross without stopping, since only trains require stops.