Before handling printed circuit boards, technicians should ...

[misspop]

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.

[jxjsniuniu]

Answer to Question 1

B

Answer to Question 2

D

[misspop]

Thanks for the timely response, appreciate it

[shewald78]

Great answer, keep it coming