The operator of an electrical switch is the part of the switch ...

[lindiwe]

The operator of an electrical switch is the part of the switch that ________.
 
  A) conducts current
  B) is the same as the contacts
  C) causes the action that makes the switch change from open to closed or closed to open

Question 2

In order to facilitate air removal, a diaphragm-type expansion tank should be placed:
 
  A) On the discharge side of the boiler. B) Above the boiler, below the roofline.
  C) On the supply aide of the boiler. D) Above the highest terminal unit.

[upturnedfurball]

Answer to Question 1

C

Answer to Question 2

A

[lindiwe]

Excellent

[ttt030911]

Great answer, keep it coming