Author Question: After servicing a system using a bolt-on piercing valve, the technician should: A) Simply remove ... (Read 119 times)

mia · **on:** Jul 24, 2018

After servicing a system using a bolt-on piercing valve, the technician should:

A) Simply remove the gauges because most bolt-on valves are self-sealing.
B) Close the bolt-on valve, remove the gauges, and put on the valve cap.
C) Remove the bolt-on valve and quickly braze up the hole.
D) Recover the refrigerant, remove the bolt-on valve, and replace it with a permanent valve.

Question 2

A saddle piercing valve:

A) Is used to gain access to a sealed system.
B) Is used to pierce the saddle on a manual service valve whose stem has been rounded off so the technician can still get a reading.
C) Is the most common type of refrigeration service valve used on commercial refrigeration systems.
D) Should be installed on all systems at the start of a service call.