Author Question: A water-source system that recirculates water in pipes buried in the ground is: A) Considered a ... (Read 87 times)

saraeharris · **on:** Jul 24, 2018

A water-source system that recirculates water in pipes buried in the ground is:

A) Considered a hybrid between an open- and a closed-loop system.
B) An open-loop system.
C) A closed-loop system.
D) Called a quasi-open loop because it still must have an air gap at the circulating pump.

Question 2

The output of an oil furnace ignition transformer can be tested:

A) Using the microamp scale on a multimeter.
B) Using a voltmeter that can read 1,000 V DC.
C) Using a voltmeter that can read 1,000 V AC.
D) With a special high-voltage probe that reduces the voltage to a level a standard meter can read.