Cast-iron Sectional & Modular Boilers exam with 100% correct answers
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Course
Cast-iron Sectional & Modular Boilers
Institution
Cast-iron Sectional & Modular Boilers
The cast-iron sectional boiler is generally used for steam and hot
water heating systems in: correct answersSmall and medium-sized buildings, and when classed as Heating Boilers are built to ASME Section 4.
Cast-iron boilers are still being used today, from the smallest residential boiler to as...
The cast-iron sectional boiler is generally used for steam and hot
water heating systems in: correct answersSmall and medium-sized buildings, and when classed as
Heating Boilers are built to ASME Section 4.
Cast-iron boilers are still being used today, from the smallest residential boiler to as high as: correct
answers2930 kW units
Cast-iron boilers are durable and can be readily: correct answersDisassembled and reassembled.
Cast iron boilers can be serviced in: correct answersTight spaces and then rebuilt.
Cast-iron boilers are typically found in: correct answersResidential and light commercial heating uses.
Cast-iron boilers can be retrofitted with: correct answersDomestic heating coils for domestic hot water
use only.
In larger commercial industries cast-iron boilers are used by: correct answersStringing several units
designed in a manifold piping system to meet the needs of higher demands.
Cast-iron boilers can be used in ___ or ___ service in low-pressure applications. correct answersSteam or
hot water
The combustion efficiencies of cast-iron boilers can vary from __ to as high as ___. correct answers75% -
93%
Cast-iron boilers is built up from a number of: correct answersHollow, cast-iron sections
, Cast-iron boilers sections are connected to each other by means of: correct answersPush nipples in the
upper and lower part of the sections
Cast-iron boiler sections are held tightly together with: correct answersTie rods or screw jacks.
In a cast-iron boiler ___ and ___ can flow freely from one section to the other through the push nipples.
correct answersWater and steam
In a cast-iron boiler the sections are placed either ___ like slices in a loaf of bread or ___ like pancakes.
correct answersside by side or stacked one above the other.
Depending on the arrangement of the sections, the cast-iron boilers are classified as: ___ sectional
boilers (bread slices) or ___ sectional boilers
(pancakes). correct answersvertical or horizontal
In a vertical cast iron boiler the sections are placed on a: correct answersRigid supporting base that also
contains the gas burners.
Any cast-iron boiler the hot combustion gases travel: correct answersUpwards between the sections to
the:
- collector hood
- then to the draft hood
- then into the uptake.
The cast-iron vertical boiler is enclosed by an insulated: correct answersSheet metal casing with
removable panels to provide access.
The sections of cast-iron boilers come in a wide variety of: correct answersShapes
The sections of cast-iron boiler are designed to: correct answersGive maximum heat transfer from the
hot gases to the heating surface.
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