What is a service valve wrench?
A) A wrench used to install service valves on a hermetic system
B) A tool used to change the core in Schrader valves
C) A ratchet wrench with square openings that fit service valve stems
D) A pair of pliers that is used to turn a manual service valve stem
Question 2
How should a refrigerant cylinder be warmed up during service?
A) With live steam if available B) With warm water not over 125F
C) Using an open flame vented outdoors D) Place the cylinder in a 350F oven