Identification of pipelines carrying different liquids and gases is done by the ____________ of the pipe?
Correct answer: B. Colour
- A. Diameter
- B. Colour
- C. Altitude
- D. None of these
Explanation
Industrial pipelines are commonly identified by colour coding, which allows the conveyed liquid or gas and its hazard category to be recognised quickly. Diameter and altitude do not provide this identification.
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