Question 336General Subjects - QMED
70% to passWhich pipe listed has the largest outside diameter?
AA 3/4" pipe with a standard wall thickness.
BA 3/4" pipe with an extra strong wall thickness.
CA 3/4" pipe with a double extra strong wall thickness.
DAll have the same outside diameter.
AI Explanation
The correct answer is D) All have the same outside diameter. The outside diameter of a pipe is determined by the pipe's nominal size, not by the wall thickness. A 3/4" pipe will have the same outside diameter regardless of whether it has a standard, extra strong, or double extra strong wall thickness. The wall thickness only affects the inside diameter of the pipe, not the outside diameter. Therefore, all the options listed have the same 3/4" outside diameter. The other options are incorrect because the outside diameter does not change based on the wall thickness specification. The wall thickness only affects the pipe's weight, pressure rating, and internal volume, not the overall outside diameter.
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