Blueprint and Drawing Interpretation Flashcards
6 cards from real PIPEFITTER practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Blueprint and Drawing Interpretation flashcards as text
What does the abbreviation 'BOP' mean on a piping isometric drawing?
Answer: Bottom of pipe
BOP stands for Bottom of Pipe and indicates the elevation measurement is taken from the bottom of the pipe.
On a P&ID, what does a dashed line between two instruments typically represent?
Answer: An electrical signal connection
A dashed line on a P&ID between instruments represents an electrical signal connection.
What does a weld symbol with the tail pointing to the right and an open circle at the arrow elbow indicate?
Answer: A field weld
An open circle (flag) at the elbow of the weld symbol arrow indicates a field weld, meaning it is to be performed at the job site.
In a piping isometric drawing, what do the numbers 'N 45° E' represent?
Answer: A compass bearing for pipe routing direction
N 45° E is a compass bearing used on isometric drawings to indicate the pipe routing direction — 45 degrees east of north.
What does Schedule 80 indicate on a pipe specification?
Answer: The wall thickness of the pipe
Schedule 80 refers to the wall thickness of the pipe — higher schedule numbers indicate thicker walls.
What does the symbol 'CW' in a piping drawing specification typically refer to?
Answer: Cooling water
CW on a piping drawing stands for Cooling Water, a common utility service line designation.