Which pressure gauge statement is false?

• A. The needle should not stick or be bent
• B. The gauge monitors the system pressure
• C. If your sprayer max is 50 psi, a gauge range to 500 psi is a good choice
• D. Always replace the gauge if it will not zero out

Answer: (C)

Choosing the right pressure gauge means selecting a range that matches the system’s typical operating pressure so readings are clear and accurate. The gauge should show a readable needle that moves freely and isn’t damaged, and it must zero out when there is no pressure. If the gauge won’t zero, it indicates a fault and should be replaced.

Using a gauge rated up to 500 psi for a sprayer that operates around 50 psi is not appropriate. With such a high maximum, only the very low end of the scale is used in normal operation, which makes readings less precise and harder to interpret. This reduces your ability to detect small but important changes in pressure that affect spray performance, so that choice is the false one.