Author Question: As the air filter gets dirty, the static pressure drop across the filter A) stays the same B) ... (Read 50 times)

jenna1 · **on:** Jul 26, 2018

As the air filter gets dirty, the static pressure drop across the filter

A) stays the same B) increases C) decreases

Question 2

What is a service valve wrench?

A) A tool used to change the core in Schrader valve
B) A pair of pliers that is used to turn a manual service valve stem
C) A wrench used to install service valves on a hermetic system
D) A ratchet wrench with square openings that fit service valve stems