What is the meaning of the following traffic sign?

- Give right-of-way to all vehicles.
- Be alert, speed camera ahead.
- Careful! dangerous descent.
- A hazardous place for which a specific road sign was not designated.· Correct answer

Sign 150 indicates a dangerous spot for which no special sign has been designated. This is a general warning sign used when there is no specific sign for the type of existing danger.
Triangle with an exclamation mark = undefined danger.
Ignoring a 'general' sign - it indicates a real danger.
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