Exam (elaborations)
Plumbing-Fourth Edition Level 1.
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Plumbing-Fourth Edition Level 1.
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Plumbing-Fourth Edition Level 1Aboveground rough-in - ANS-The second phase of a plumbing project. During this
phase, holes are cut in walls, ceilings, and floors. Then, supply and waste pipes are
attached or hung so they can be connected to fixtures.
Acrylonitrile Butadiene Styrene (ABS) - ANS-Plastic pipe and fittings used extensively in
drain, waste and vent (DMV) systems.
ACR - ANS-Air conditioning and refrigeration system
ACR tubing - ANS-Annealed copper tubing that is manufactured specifically for use in
air conditioning and refrigeration work.
ADA compliant (ADA 1990) - ANS-Follows the accessibility guidelines of the Americans
with disabilities act of 1990
Adapter - ANS-A fitting that joins pipes of different sizes or materials, such as copper
and galvanized pipe or cast-iron and plastic pipe
Amperage - ANS-A measure of electrical current
Angle valve - ANS-A valve in which the inlet and outlet openings are at 90 DEGREES
ANGLE to one another.
Annealing - ANS-heat (metal or glass) and allow it to cool slowly, in order to remove
internal stresses and toughen it.
ANSI - ANS-American National Standards Institute: A private, non-profit organization
that coordinates the development and use of voluntary consensus standards in the
United States.
Anti-scald valve - ANS-An automatic valve uses a sensor to adjust the temperature
apparatus - ANS-One tool, which combines a variety of functions, to perform a particular
job
Approved submittal data - ANS-The fixtures and fittings in catalog drawing that have
been approved by the architect or engineer
, Appurtenances - ANS-accessories that require no demand from the water supply side
and add no load to the waste side
Aqueduct - ANS-a man-made channel used to carry water from a distance
aquifer depletion - ANS-The use of underground fresh water at a rate faster than it can
be replenished.
Architect's Scale - ANS-A measurement device that uses smaller units such as 1/2 in or
1/4 in, to represent 1 foot
Asbestos - ANS-a fireproof material
Atmospheric hazard - ANS-a potential danger in the air or a condition of poor air quality.
Back - ANS-Part of the fitting that is opposite to the side with an opening face
Back pressure - ANS-The pressure within a system caused by fluid friction or an
induced resistance to flow through the system. Most process facilities require a
minimum system pressure to operate efficiently. The necessary back-pressure is often
created and controlled by a valve that is set to operate under the desired range of
conditions.
Backflow - ANS-The flow of contaminated water into the freshwater system resulting
from a cross connection between potable and non-potable water systems.
Backflow Preventer - ANS-A check valve that prevents water from flowing back into a
system and contaminating it.
backing board - ANS-Unfinished side of the inside wall, used to mount fixture risers and
stub outs behind the fixtures
BACKPRESSURE BACKFLOW - ANS-An increased reverse pressure due to pumps &
boilers (Another term for back pressure)
Ball Valve - ANS-A valve used to control the flow of gases and liquids. It is installed in
piping systems where quick shutoffs for in-line maintenance may be necessary.
Bar stock - ANS-Uncut bar material on hand for use on a project.
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