📚CDL General Knowledge — Question 15 of 20

A full stop is required at a railroad crossing when:

Answer: C

The nature of the cargo makes a stop mandatory under the State or Federal regulations.

Regardless of being fully loaded or completely empty, stop at all railroad crossings if you are hauling cargo tanks, chlorine, or the vehicle requires placards.

All choices

  • AThere is no flagman, warning signals or gate at the crossing.
  • BThe crossing is in the city or town with frequent train transit.
  • CThe nature of the cargo makes a stop mandatory under the State or Federal regulations.

Why the other answers are wrong

A. There is no flagman, warning signals or gate at the crossing.

Choice A is wrong because a full stop is not always required at crossings without signals unless cargo regulations mandate it.

B. The crossing is in the city or town with frequent train transit.

Choice B is wrong because the location or frequency of train transit does not alone require a full stop.

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CDL General Knowledge Test Info

Questions on Exam

50

Passing Score

80%

Time Limit

Typically 60 minutes; varies by testing location

The General Knowledge test content is federally standardized, so this question applies in every state. Age limits, fees, and testing procedures do vary — check your state's CDL requirements.

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