Practice question The invert of a storm pipe is: The inside top, or crown, of the pipeThe flowline at the inside bottom of the pipeThe outside top of the bedding stoneThe rim elevation of the nearest manhole Answer: B — The flowline at the inside bottom of the pipe The correct answer is shown above. Try the full quiz for additional practice. Practice more: VA H H QI Practice Questions - Virginia Highway Heavy Contracting Qualified Individual Examination Exam →