What is the purpose of a reverse return piping system? A) To ...

[charchew]

What is the purpose of a reverse return piping system?
 
  A) To allow the flow direction to be reversed for cooling
  B) To operate a two-pipe system like a one-pipe system
  C) To keep the length of piping the same for each convector unit
  D) To reduce the amount of piping required

Question 2

Which of the following systems is most suitable where a pond or lake is located fairly close to the building?
 
  A) Air-to-air system with outdoor unit located near the water
  B) Water-to-air closed loop system with loop sunk in pond
  C) Water-to-air open loop system using the pond water
  D) Air-to-water system using the pond as a buffer tank

[k2629]

Answer to Question 1

C

Answer to Question 2

B

[charchew]

Excellent

[isabelt_18]

TYSM