Hydronic Heating Systems Exam Questions
with Correct Answers
All hydronic heating systems will inherently attempt to find a point of ____ and remain
in operation at that point.
thermal equilibrium
In single-loop systems, the ____ prevents hot water in the boiler from slowly circulating
through the distribution system when the circulator is off.
flow-check valve
Hydronic heating systems use water (or water-based solutions) to move thermal energy
from where it is produced to where it is needed.
True
Thermal radiation is probably the least understood mode of heat transfer.
True
Providing comfort is the secondary objective of any heating system designer or installer.
False
An air separator is designed to separate air from water and eject it from the system.
The process is ____ the water is heated.
enhanced as
Heat is our perception of atomic vibrations within a material. Our means of expressing
the intensity of these vibrations is called ____.
temperature
, Heat emitters that use fans or blowers to force air through a heat exchanger are usually
called fan coils or air ____.
handlers
Maintaining comfort is simply a matter of supplying heat to the body.
False
Ideally, the water in a hydronic heating system is replaced in the system every year.
False
Buildings with hydronic heating systems have shown ____ heating energy use compared
to equivalent structures with forced-air heating systems.
lower
Water has many characteristics that make it ideal for a hydronic system. It is readily
available, nontoxic, nonflammable, and has one of the highest ____ storage abilities of
any material known to man.
heat
A given volume of water can absorb over ____ times more heat as the same volume of
air for the same temperature change.
3400
Properly designed hydronic systems control both the air temperature and surface
temperatures of rooms to maintain optimal comfort.
True
with Correct Answers
All hydronic heating systems will inherently attempt to find a point of ____ and remain
in operation at that point.
thermal equilibrium
In single-loop systems, the ____ prevents hot water in the boiler from slowly circulating
through the distribution system when the circulator is off.
flow-check valve
Hydronic heating systems use water (or water-based solutions) to move thermal energy
from where it is produced to where it is needed.
True
Thermal radiation is probably the least understood mode of heat transfer.
True
Providing comfort is the secondary objective of any heating system designer or installer.
False
An air separator is designed to separate air from water and eject it from the system.
The process is ____ the water is heated.
enhanced as
Heat is our perception of atomic vibrations within a material. Our means of expressing
the intensity of these vibrations is called ____.
temperature
, Heat emitters that use fans or blowers to force air through a heat exchanger are usually
called fan coils or air ____.
handlers
Maintaining comfort is simply a matter of supplying heat to the body.
False
Ideally, the water in a hydronic heating system is replaced in the system every year.
False
Buildings with hydronic heating systems have shown ____ heating energy use compared
to equivalent structures with forced-air heating systems.
lower
Water has many characteristics that make it ideal for a hydronic system. It is readily
available, nontoxic, nonflammable, and has one of the highest ____ storage abilities of
any material known to man.
heat
A given volume of water can absorb over ____ times more heat as the same volume of
air for the same temperature change.
3400
Properly designed hydronic systems control both the air temperature and surface
temperatures of rooms to maintain optimal comfort.
True
