When should you approach the customer about the potential cost of ...

[Collmarie]

When should you approach the customer about the potential cost of a required part?
 
  A) Just before you leave the job
  B) You should let them find out when they receive the bill.
  C) Before replacing the part
  D) On the phone after you have left

Question 2

A heat recovery ventilation system saves energy by
 
  A) exchanging heat between the supply and exhaust air streams
  B) pre-heating the ventilation supply air with electric heat strips
  C) pre-heating the ventilation exhaust air with electric heat strips
  D) decreasing the size of the indoor air conditioning system blower

[batool]

Answer to Question 1

C

Answer to Question 2

A

[Collmarie]

TYSM

[milbourne11]

Gracias!