Medium and large commercial buildings typically use: A) ...

[fagboi]

Medium and large commercial buildings typically use:
 
  A) Low-pressure hot-water boilers. B) Medium- or high-pressure steam boilers.
  C) Medium- or high-pressure hot-water boilers. D) Low-pressure steam boilers.

Question 2

When adding a specific amount of refrigerant to a new system, how do you measure the amount of refrigerant added?
 
  A) Use a digital scale to register charge as the refrigerant exits the cylinder.
  B) Use a digital scale to register charge as you add refrigerant to the cylinder.
  C) Use a digital scale to remove refrigerant until a negative number registers.
  D) Use a digital scale to weigh the refrigerant cylinder.

[daiying98]

Answer to Question 1

B

Answer to Question 2

A

[fagboi]

TYSM

[smrtceo]

Gracias!