How is voltage drop through the power wire to the unit checked? ...

[jeatrice]

How is voltage drop through the power wire to the unit checked?
 
  A) Measure the resistance of the power wire from the source to the furnace and multiply it times the furnace operating current.
  B) The difference in voltage before and after starting the furnace is the voltage drop.
  C) The difference between the nameplate voltage and the actual operating voltage is the voltage drop.
  D) The difference between the minimum and maximum allowable nameplate voltages is the voltage drop.

Question 2

An open-loop system:
 
  A) Controls conditions for machines that are open to the air.
  B) Monitors conditions that it can control.
  C) Monitors conditions that it cannot control.
  D) Connects to the main controller through an open wireless system.

[mcni194]

Answer to Question 1

B

Answer to Question 2

C

[jeatrice]

TY

[mcni194]

You're welcome