HVAC Chapter 6 fully
solved & updated
(latest version)
___________ refers to the system or systems that condition air in a building. -
answer HVAC
______________ is the process that involves heating, cooling, humidifying,
dehumidifying and cleaning air. - answer Air Conditioning
A _______________ is a piece of equipment that adds water vapor to the air in
a building to increase relative humidity. - answer Humidifier
A _____________ removes moisture from air by chemical or physical methods. -
answer Dehumidifier
______________ systems cool water at a central point, in a condenser, and
then distribute chilled water throughout the building, either to coils in an air
distribution system or through pipes embedded in the floor or ceiling. -
answer Chilled water
A(n) ________________ is a piece of equipment consisting of a vessel or tank-
like container where heat produced from the combustion of fuels such as
natural gas, fuel oil, or coal or electrical resistance heating is used to
produce hot water or steam. - answer Boiler
A boiler consists of _____ main components. - answer 2
, _______________ are constructed of a vessel that holds water and has hollow
passages (tubes) within the vessel that are surrounded by the water. -
answer Fire tube boilers
_________________ hold water in tubes and allow hot combustion gases from
the burning fuel to pass over the tubes in which the boiler water is
contained. - answer Water tube boilers
_______________ is the total amount of heat available at the boiler outlet for a
specified fuel input. It is usually expressed in thousands of Btu per hour
(MBH), boiler horse-power (BHP), or pounds of team per hour. - answer Gross
ouput rating
Several additional pieces of equipment are attached to and used by a boiler
in a building space heating system. These additional pieces of equipment are
called __________________ equipment. - answer Ancillary Boiler Equipment
The __________________________ allows for the expansion of the water in the
system as it is heated. It is located above the boiler. - answer Expansion Tank
When the pressure in the system drops below 12 psi, this valve opens,
allowing more water into the system; then the check valve automatically
closes as the pressure increases. This maintains a minimum water level in
the system. - answer Automatic Filler valve
This piece of equipment circulates water from the boiler through the pipes
and back to the boiler. - answer Circulating pump
The ___________________ closes to stop the flow of hot water when the pump
stops, so that the hot water will not flow through the system by gravity. -
answer Flow Control valve
When the pressure in a low-pressure boiler system exceeds a pressure of 30
psi, a spring -loaded valve opens, allow some of the water to bleed out of the
solved & updated
(latest version)
___________ refers to the system or systems that condition air in a building. -
answer HVAC
______________ is the process that involves heating, cooling, humidifying,
dehumidifying and cleaning air. - answer Air Conditioning
A _______________ is a piece of equipment that adds water vapor to the air in
a building to increase relative humidity. - answer Humidifier
A _____________ removes moisture from air by chemical or physical methods. -
answer Dehumidifier
______________ systems cool water at a central point, in a condenser, and
then distribute chilled water throughout the building, either to coils in an air
distribution system or through pipes embedded in the floor or ceiling. -
answer Chilled water
A(n) ________________ is a piece of equipment consisting of a vessel or tank-
like container where heat produced from the combustion of fuels such as
natural gas, fuel oil, or coal or electrical resistance heating is used to
produce hot water or steam. - answer Boiler
A boiler consists of _____ main components. - answer 2
, _______________ are constructed of a vessel that holds water and has hollow
passages (tubes) within the vessel that are surrounded by the water. -
answer Fire tube boilers
_________________ hold water in tubes and allow hot combustion gases from
the burning fuel to pass over the tubes in which the boiler water is
contained. - answer Water tube boilers
_______________ is the total amount of heat available at the boiler outlet for a
specified fuel input. It is usually expressed in thousands of Btu per hour
(MBH), boiler horse-power (BHP), or pounds of team per hour. - answer Gross
ouput rating
Several additional pieces of equipment are attached to and used by a boiler
in a building space heating system. These additional pieces of equipment are
called __________________ equipment. - answer Ancillary Boiler Equipment
The __________________________ allows for the expansion of the water in the
system as it is heated. It is located above the boiler. - answer Expansion Tank
When the pressure in the system drops below 12 psi, this valve opens,
allowing more water into the system; then the check valve automatically
closes as the pressure increases. This maintains a minimum water level in
the system. - answer Automatic Filler valve
This piece of equipment circulates water from the boiler through the pipes
and back to the boiler. - answer Circulating pump
The ___________________ closes to stop the flow of hot water when the pump
stops, so that the hot water will not flow through the system by gravity. -
answer Flow Control valve
When the pressure in a low-pressure boiler system exceeds a pressure of 30
psi, a spring -loaded valve opens, allow some of the water to bleed out of the
