The not a bituminous pipe coating system among the following options is:

The not a bituminous pipe coating system among the following options is:

• A. Asphalt spray system
• B. Coal-tar enamel
• C. Coal-tar pitch
• D. Asphalt tape wrap

Answer: (A)

The key idea is distinguishing coating forms from the way they’re applied. Coal-tar enamel, coal-tar pitch, and asphalt tape wrap are all defined coating forms—they specify a type of protective film or wrap that is applied to the pipe. An asphalt spray system, on the other hand, describes a method of applying asphalt-based material. While asphalt can be used in various coating forms, the spray approach itself is not a distinct coating form like enamel, pitch, or a wrap. Therefore, it’s not considered a bituminous coating system in the same sense as the others, making it the correct choice.

The key idea is distinguishing coating forms from the way they’re applied. Coal-tar enamel, coal-tar pitch, and asphalt tape wrap are all defined coating forms—they specify a type of protective film or wrap that is applied to the pipe. An asphalt spray system, on the other hand, describes a method of applying asphalt-based material. While asphalt can be used in various coating forms, the spray approach itself is not a distinct coating form like enamel, pitch, or a wrap. Therefore, it’s not considered a bituminous coating system in the same sense as the others, making it the correct choice.