Pipefitter Blueprint and Drawing Interpretation 2

Question 1

What does the abbreviation 'BOP' mean on a piping isometric drawing?

Accepted Answer

Bottom of pipe

Answer

Beginning of project

Answer

Back of pipe

Answer

Bore of pipe

Question 2

On a P&ID, what does a dashed line between two instruments typically represent?

Accepted Answer

An electrical signal connection

Answer

A pneumatic signal line

Answer

A capillary tube connection

Answer

A software/data link

Question 3

What does a weld symbol with the tail pointing to the right and an open circle at the arrow elbow indicate?

Accepted Answer

A field weld

Answer

A weld all around

Answer

A flush contour weld

Answer

A shop weld

Question 4

In a piping isometric drawing, what do the numbers 'N 45° E' represent?

Accepted Answer

A compass bearing for pipe routing direction

Answer

A pipe angle of 45 degrees northeast

Answer

The north elevation at 45 degrees

Answer

A fitting orientation northeast of north

Question 5

What does Schedule 80 indicate on a pipe specification?

Accepted Answer

The wall thickness of the pipe

Answer

The pipe's outside diameter

Answer

The maximum operating pressure

Answer

The pipe material grade

Question 6

What does the symbol 'CW' in a piping drawing specification typically refer to?

Accepted Answer

Cooling water

Answer

Clockwise rotation

Answer

Cold water supply

Answer

Carbon welded pipe