Author Question: Before handling printed circuit boards, technicians should discharge any static electricity from ... (Read 111 times)

misspop · **on:** Jul 24, 2018

Before handling printed circuit boards, technicians should discharge any static electricity from their bodies by:

A) Rubbing their feet several times on the carpet to remove excess electrons.
B) Touching a grounded metal frame.
C) Momentarily grabbing both ends of the power source to neutralize themselves.
D) Wiping their hands with a silk rag to remove excess electrons from their hands.

Question 2

Why are some reclaimed refrigerants classified as hazardous materials?

A) They have been through sealed systems.
B) They are from pre-1993 systems.
C) They have been recycled before being reclaimed.
D) They may contain corrosive or carcinogenic chemicals.