The pilot safety device to shut off the main fuel burner valve and the pilot
burner in the event of a pilot failure and to prevent the main burner from
100% FLAME SAFEGUARD turning on until a safe pilot is established.
ABSOLUTE PRESSURE The sum of gauge pressure and atmospheric pressure.
Piece of equipment not directly attached to the boiler but necessary for its
ACCESSORY operation.
ACCUMULATION TEST Test used to establish the relieving capacity of boiler safety valves.
AIR COCK See BOILER VENT.
Steam-driven device that removes air and other noncondensable gases
AIR EJECTOR from the condenser, thus maintaining a higher vacuum.
AIR FLOW SWITCH Proves that primary air is supplied to the burner.
Supplies heated air for combustion. Located in the breeching between the
AIR HEATER boiler and chimney.
AIR TO FUEL RATIO Amount of air and fuel supplied to the burner over high and low fire.
Determined by boiler water analysis. Boiler water with a PH over 7 is
ALKALINITY considered alkaline.
AMBIENT TEMPERATURE Temperature of the surrounding air.
ANTHRACITE COAL Hard coal that has a high fixed carbon content.
, Temperature
As boiler steam pressure increases,
there is a corresponding increase in
the:
ASH HOPPER Large receptacle used to store ashes until they can be disposed of.
Code written by the American Society of Mechanical Engineers that
controls the construction, repairs and operation of steam boilers and their
ASME CODE related equipment.
ATMOSPHERIC PRESSURE Pressure at sea level (14.7 psi).
ATOMIZE To break up liquid into a fine mist.
Valve located on the steam line closest to the shell of the boiler that cuts
the boiler in on the line and off-line automatically. This valve also protects
AUTOMATIC NONRETURN VALVE the system in the event of a large steam leak on any boiler.
AUXILIARIES Equipment necessary for the operation of a boiler.
Direct the path of the gases of combustion so that the maximum heat will
be absorbed by the water before the gases of combustion enter the
BAFFLES breeching and chimney.
When the intake damper is automatically controlled by the pressure in the
furnace. Furnace pressure is maintained slightly below atmospheric
BALANCED DRAFT pressure.
TUBE BOILER- A water tube boiler with more than one drum in which the
BENT tubes connect the drums.
BITUMINOUS COAL Soft coal that has a high volatile content.
, Coded tank vented to the atmosphere that protects sewer lines from boiler
BLOWDOWN TANK pressure and high temperature when blowing down.
Found on the boiler blowdown line at the lowest part of the water side of
BLOWDOWN VALVES the boiler.
To provide a method of draining, flushing and blowing off the boiler at the
low point to remove the concentrated solids, sediment, seals and sludge of
BLOWOFF VALVE keeping the boiler clean.
Pounds of steam per hour that a steam boiler is capable of producing.
BOILER EXPLOSION- Caused by a sudden drop in pressure (failure on
BOILER CAPACITY the steam side) without a corresponding drop in temperature.
The evaporation of 34.5 pounds of water per hour from and at a feedwater
BOILER HORSEPOWER temperature of 212°F.
A boiler is used for what purpose? To produce steam or hot water for heat
UP- Removing a boiler from service for an extended period of time. A boiler
BOILER LAY can be laid up wet or dry.
6 months minimum
A boiler operator must have the
following number of months on-the-
job training before he can take the
operator's examination.
False
A boiler operator operating a boiler
that he knows is unsafe may, or may
NOT have his license revoked.
, True
A boiler operator operating a boiler
without a license shall be guilty of a
misdemeanor and upon conviction
thereof shall be punished by a fine of
not less than $25.00 and not more
than
$100.00, and in addition may be
imprisoned for not more than 2 years,
or both. True or false?
A data sheet used to record pressures, temperatures and other operating
BOILER ROOM LOG conditions of a boiler on a continuous basis.
BOILER SHUTDOWN A sequence of operations completed when taking a boiler off-line.
BOILERS IN BATTERY Two or more boilers connected to a common steam header.
To allow the boiler to expand uniformly under the action of the increasing
Boilers should be fired slowly when pressure.
first starting up because of the
following reason:
UP- A sequence of operations completed when preparing a steam boiler
BOILER START for service.
Used to carry water or heat and gases of combustion. May be straight or
BOILER TUBES bent tubes.
Line coming off the highest part of steam side of the boiler that is used to
vent air from the boiler when filling with water and when warming the
BOILER VENT boiler. Also used to prevent a vacuum from forming when taking the boiler
off-line. Also known as air cock.