Question

Piping that contains ammonia must have ammonia written in what colour and on what colour background?

A) orange letter, black background
B) red letter, yellow background
C) red letter, blue background
D) black letter, orange background

Answer 1

Ammonia pipe labeling must feature yellow letters on a black background, as per safety standards, to ensure visibility and caution in handling the hazardous substance.

Step-by-step explanation:

The piping that contains ammonia must have 'Ammonia' written in yellow letters on a black background. According to safety standards, this specific color coding is used to ensure that hazardous materials like ammonia are easily identifiable and properly handled. This color combination helps prevent accidents and ensures the safety of those working with or around this caustic and hazardous substance.