Technician A says that when adjusting a spray gun, the most accurate place to read pressure is at the wall regulator. Technician B says that when adjusting a spray gun, the most accurate place to read pressure is at the air cap. Who is correct?
A) A only
B) B only
C) Both A and B
D) Neither A nor B

Question

Quizplus · Accepted Answer

Technician B is correct. The most accurate place to read pressure when adjusting a spray gun is at the air cap because this is where the pressure is actually being applied to the paint or coating. Reading pressure at the wall regulator can be misleading because there may be pressure drop or variability between the regulator and the air cap.

Technician a Says That When Adjusting a Spray Gun, the Most