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CDL · On the Road

At a drawbridge without a signal or attendant, what must a bus driver do?

Reviewed by Jordan Morley, Editorial Lead at 247SimpleTests. Written by the 247SimpleTests Editorial Team from the official source material cited on every question.

Correct answer

Stop at least 50 feet before the draw of the bridge, then proceed only after checking that it is safe and the draw is completely closed

  1. A Honk and continue
  2. B Speed up to cross before it opens
  3. C Cross at normal speed
  4. D Stop at least 50 feet before the draw of the bridge, then proceed only after checking that it is safe and the draw is completely closed

Why this is the answer

When approaching a drawbridge that has no traffic signal or attendant to control crossing, a bus driver must stop at least 50 feet before the draw of the bridge. The driver may proceed only after confirming the draw is completely closed and it is safe to cross. A stop is not required if the bridge has a working traffic light showing green, or a guard or attendant controlling traffic, or if the bridge is a type that never opens for traffic. The rule prevents a bus full of passengers from driving onto a bridge that is open or opening.
Source: FMCSA CDL Manual 4.3.2 Drawbridges

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About this topic: On the Road

On-the-road passenger questions cover speed on curves, stopping at railroad crossings and drawbridges, managing passengers while driving, and the rules on fuelling, talking with passengers and towing. Passenger safety overrides schedule every time. This is one of 26 Passenger Transport questions on on the road, each with a full explanation on a single study page.

New to this exam? Our CDL exam guide explains the format, scoring, and how to prepare.

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