2024 ICC B1 Exam Definitions Questions and Answers
Air admittance valve
A one-way valve designed to allow air into the plumbing drainage system where a negative pressure develops in the piping.
Air circulation, forced
A means of providing space conditioning utilizing movement of air throu...
2024 ICC B1 Exam Definitions Questions
and Answers
Air admittance valve - answer A one-way valve designed to allow air into the
plumbing drainage system where a negative pressure develops in the piping.
Air circulation, forced - answer A means of providing space conditioning utilizing
movement of air through ducts or plenums by mechanical means
Air-conditioning system - answer A system that consists of heat exchangers,
blowers, filters, supply, exhaust and return-air systems
Air-impermeable insulation - answer An insulation having an air permanence equal
to or less than 0.02
Antisiphon - answer A term applied to valves or mechanical devices that eliminate
siphonage.
Backflow - answer the flow of water or other liquids, mixtures or substances
into the distributing pipes of a potable supply of water from any source other than from
its intended source.
Backflow preventer - answer Prevents backflow into the potable water supply
Backsiphonage - answer The flowing back of used or contaminated water from
piping into a potable water-supply pipe due to a negative pressure in such pipe
Boiler - answer A self-contained appliance from which hot water is circulated for
heating purposes and then returned to the boiler
- Water temps not exceeding 250 degrees F
Braced wall line - answer A straight line through the building plan that represents the
location of the lateral resistance provided by the wall bracing
Branch - answer Any part of the piping system other than a riser, main or stack
Branch, main - answer A water-distribution pipe that extends horizontally off a main
or riser to convey water to branches or fixture groups
Branch, vent - answer A vent connecting two or more individual vents with a vent
stack or stack vent
, BTU/H - answer The listed maximum capacity of an appliance, absorption unit or
burner expressed in British thermal units input per hour
Building drain - answer The lowest piping that collects the discharge from all other
drainage piping and extends 30 inches beyond the exterior walls and conveys the
drainage to the sewer
Built-up roof covering - answer Two or more layers of felt cemented together and
surfaced with a cap sheet
Chimney - answer A primary vertical structure containing one or more flues, for the
purpose of carrying gaseous products of combustion and air from a fuel-burning
appliance to the outside
Chimney connector - answer A pipe that connects a fuel-burning appliance to a
chimney
Circuit vent - answer A vent that connects to a horizontal drainage branch and vents
two traps to not more than eight traps or trapped fixtures connected into a battery
Cladding - answer The exterior materials that cover the surface of the building
envelope that is directly loaded by the wind
Cleanout - answer An access opening in the drainage system utilized for the removal
of obstructions
Collection pipe - answer Unpressurized pipe used within the collection system that
drains on-site nonpotable water to a storage tank by gravity
Combination waste and vent system - answer A specially designed system of waste
piping embodying the horizontal wet venting of one or more sinks, lavatories or floor
drains by means of a common waste and vent pipe
Convector - answer A system in which air enters an opening below the heating
element, is heated and leaves the enclosure through an opening located above the
heating element
Dalle glass - answer A decorative composite glazing material made of individual
pieces of glass that are embedded in a cast matrix of concrete or epoxy.
Dead loads - answer The weight of the materials of construction incorporated into
the building
Diaphragm - answer A horizontal system acting to transmit lateral forces to the
vertical resisting elements
- Horizontal bracing systems
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