Gravity must be taken into consideration when choosing a ...

[JGIBBSON]

Gravity must be taken into consideration when choosing a circulating pump for
 
  A) An open piping system
  B) A closed piping system
  C) Either an open or closed piping system
  D) Gravity does not affect pump selection in either open or closed piping systems

Question 2

Which system heats a room more consistently, leading to fewer cold spots?
 
  A) radiant floor heating system B) forced-hot-air system
  C) fan coil heating system D) baseboard radiator systems

[jesse.fleming]

Answer to Question 1

A

Answer to Question 2

A