Author Question: What is the purpose of bypass piping on a hot water gas fired boiler? A) ensure that the return ... (Read 55 times)

Jramos095 · **on:** Jul 27, 2018

What is the purpose of bypass piping on a hot water gas fired boiler?

A) ensure that the return water temperature does not drop too low
B) to modulate the capacity of the heating system
C) to allow the boiler to fire continuously, even with no heating load
D) to relieve the extra pressure created by the circulating pump

Question 2

Compared to the stator's magnetic field, the rotor's magnetic field is:

A) Opposite in polarity. B) Similar in polarity.
C) Fixed instead of varying. D) Much stronger.