Gas Heat ESCO Practice Exam

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The proper name of the tool used to clean the inside edge of steel pipe is:

Die
Reamer
Taper
Wrench

The correct answer is: Die

A die is the proper name of the tool used to clean the inside edge of steel pipe. A die is a cutting tool used to form or cut threads on metal pipes or rods, and is specifically designed for use on the inside of a pipe. Option B, a reamer, is a tool used to smooth and widen a preexisting hole, not to clean threads. Option C, a taper, is a type of reamer, not a specific tool used for pipe cleaning. Option D, a wrench, is a hand tool used for gripping and turning objects, and is not designed for pipe cleaning.