Question

question 25
a water source heat pump
can be an open or closed system
typically uses water from the house plumbing system
must use distilled water
has two piping systems buried directly in the earth
has a very limited capacity for heating and cooling

Explanation:

Water - source heat pumps can operate as open - loop (drawing water from a well, lake etc. and discharging it back) or closed - loop (water circulates in a sealed loop) systems. The other options are incorrect: they don't typically use house plumbing water, don't have to use distilled water, don't necessarily have two piping systems buried in the earth, and don't have very limited heating/cooling capacity.

Answer:

A. can be an open or closed system