Author Question: What is the purpose of a reverse return piping system? A) To allow the flow direction to be ... (Read 19 times)

charchew · **on:** Jul 24, 2018

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