The three essential requirements for a useful electric circuit ...

[NguyenJ]

The three essential requirements for a useful electric circuit are:
 
  A) A power source, a magnetic field, and a path for current flow.
  B) A magnetic field, a path for current flow, and a switch.
  C) A power source, a path for current flow, and a switch.
  D) A power source, a path for current flow, and an electrical load.

Question 2

A refrigeration system dataplate states that the low-side test pressure is 150 psig. This means that:
 
  A) The low side should not be pressurized above 150 psig.
  B) The low-side pressure should be 150 psig when the system is running its self-test.
  C) The low side should operate with a pressure of 150 psig at all times.
  D) The low-side pressure will be 150 psig when the system is operating at design conditions.

[mjenn52]

Answer to Question 1

D

Answer to Question 2

A

[NguyenJ]

Excellent

[cici]

Gracias!