Stationary Engineer (2024-2025)Practice Exam
Cl2 - <<<Answers>>>Chlorine
boiler - <<<Answers>>>equipment that provides hot water or
steam for various uses
Boiler operating Pressure - <<<Answers>>>Pressure required
to be maintained in a boiler while in service
Boiler Refractories - <<<Answers>>>Materials used in the
boiler to protect the boiler heat of combustion
Brazing - <<<Answers>>>Method of joining 2 metals at high
temperature with a molten alloy
Brine - <<<Answers>>>Highly concentrated solution of salt
in water
Brittleness - <<<Answers>>>Property of a material which
causes it to fractureprior to any noticeable signs of
deformation.
Bushing - <<<Answers>>>A renewable lining for a hole for
which moving parts pass through
Check Valve - <<<Answers>>>A valve that permits for in
only one direction
, Stationary Engineer (2024-2025)Practice Exam
Chlorine - <<<Answers>>>Heavy gas for water purification,
sewage, disposal, CL2,
Condenser - <<<Answers>>>Heat transfer device in which
steam or vapor is condensed to water
Conduction - <<<Answers>>>Heat transfer through physical
contact
Constant Pressure Govener - <<<Answers>>>Device that
maintains a constant pump discharge pressure under varying
loads
Controller - <<<Answers>>>Device used to start and stop and
protect motors from over loads while running
PRV - <<<Answers>>>PRESSURE RELIEVE VALVE
NOWL - <<<Answers>>>Normal operating water level
Chiller - <<<Answers>>>A device that removes heat from a
liquid via a vapor-compression or absorption refrigeration
cycle. This cooled liquid flows through pipes in a building
and passes through coils in air handlers, fan-coil units, or
other systems, cooling and usually dehumidifying the air in
the building. Chillers are of two types; air-cooled or water-
cooled. Air-cooled chillers are usually outside and consist of
, Stationary Engineer (2024-2025)Practice Exam
condenser coils cooled by fan-driven air. Water-cooled
chillers are usually inside a building, and heat from these
chillers is carried by recirculating water to a heat sink such as
an outdoor cooling tower.
Condenser - <<<Answers>>>A component in the basic
refrigeration cycle that ejects or removes heat from the
system. The condenser is the hot side of an air conditioner or
heat pump.
Controller - <<<Answers>>>A device that controls the
operation of part or all of a system.
Dry Bulb Thermometer - <<<Answers>>>Dry bulb
temperature is the temperature of air measured by a
thermometer which is freely exposed to the air while it is
shielded from radiation and moisture. It is usually thought of
as air temperature, and it is the true thermodynamic
temperature. It is a measurement of heat intensity
independently of humidity and a dry bulb thermometer is used
to measure it.
Economizer - <<<Answers>>>An HVAC component that
uses outside air, under suitable climate conditions, to reduce
required mechanical cooling. When the outside air's enthalpy
is less than the required supply air during a call for cooling, an
economizer allows a building's mechanical ventilation system
to use up to the maximum amount of outside
Cl2 - <<<Answers>>>Chlorine
boiler - <<<Answers>>>equipment that provides hot water or
steam for various uses
Boiler operating Pressure - <<<Answers>>>Pressure required
to be maintained in a boiler while in service
Boiler Refractories - <<<Answers>>>Materials used in the
boiler to protect the boiler heat of combustion
Brazing - <<<Answers>>>Method of joining 2 metals at high
temperature with a molten alloy
Brine - <<<Answers>>>Highly concentrated solution of salt
in water
Brittleness - <<<Answers>>>Property of a material which
causes it to fractureprior to any noticeable signs of
deformation.
Bushing - <<<Answers>>>A renewable lining for a hole for
which moving parts pass through
Check Valve - <<<Answers>>>A valve that permits for in
only one direction
, Stationary Engineer (2024-2025)Practice Exam
Chlorine - <<<Answers>>>Heavy gas for water purification,
sewage, disposal, CL2,
Condenser - <<<Answers>>>Heat transfer device in which
steam or vapor is condensed to water
Conduction - <<<Answers>>>Heat transfer through physical
contact
Constant Pressure Govener - <<<Answers>>>Device that
maintains a constant pump discharge pressure under varying
loads
Controller - <<<Answers>>>Device used to start and stop and
protect motors from over loads while running
PRV - <<<Answers>>>PRESSURE RELIEVE VALVE
NOWL - <<<Answers>>>Normal operating water level
Chiller - <<<Answers>>>A device that removes heat from a
liquid via a vapor-compression or absorption refrigeration
cycle. This cooled liquid flows through pipes in a building
and passes through coils in air handlers, fan-coil units, or
other systems, cooling and usually dehumidifying the air in
the building. Chillers are of two types; air-cooled or water-
cooled. Air-cooled chillers are usually outside and consist of
, Stationary Engineer (2024-2025)Practice Exam
condenser coils cooled by fan-driven air. Water-cooled
chillers are usually inside a building, and heat from these
chillers is carried by recirculating water to a heat sink such as
an outdoor cooling tower.
Condenser - <<<Answers>>>A component in the basic
refrigeration cycle that ejects or removes heat from the
system. The condenser is the hot side of an air conditioner or
heat pump.
Controller - <<<Answers>>>A device that controls the
operation of part or all of a system.
Dry Bulb Thermometer - <<<Answers>>>Dry bulb
temperature is the temperature of air measured by a
thermometer which is freely exposed to the air while it is
shielded from radiation and moisture. It is usually thought of
as air temperature, and it is the true thermodynamic
temperature. It is a measurement of heat intensity
independently of humidity and a dry bulb thermometer is used
to measure it.
Economizer - <<<Answers>>>An HVAC component that
uses outside air, under suitable climate conditions, to reduce
required mechanical cooling. When the outside air's enthalpy
is less than the required supply air during a call for cooling, an
economizer allows a building's mechanical ventilation system
to use up to the maximum amount of outside
