NCCER SECTION 12: INTRO TO WATER DISTRIBUTION
SYSTEMS TEST WITH LATEST UPDATED (QUESTIONS AND
ANSWERS) ALREADY PASSED!
Angle Valve Correct Answers A valve whose internal design is similar
to a globe valve's but its outlet direction is 90 degrees from its inlet
Backing Board Correct Answers A short plank of wood installed
between wall framing (or sometimes the unfinished side of the wall
interior) used to mount fixture risers and stub-outs behind the fixture
Branch Correct Answers Any part of a piping system other than a riser,
main, or stack
Check Valve Correct Answers A valve that allows liquid to flow in only
one direction. Pressure and flow within the inlet line keeps the valve
open. Automatic closure of the valve occurs with the reversal of flow, by
the weight of the disc mechanism, or by spring action
Chlorination Correct Answers The use of chlorine gas or compounds to
disinfect water
Coagulation Correct Answers In water treatment processes, a thickening
of suspended or dissolved materials into a soft, semi-solid or solid mass
Corporation Stop Correct Answers A valve that connects the building
water service line to the water main
, Curb Stop Correct Answers A control valve installed in building water
supply lines between the corporation stop and the building
Curb Box (AKA Buffalo Box) Correct Answers A cylindrical casing
placed in the ground over the curb stop, into which a special key-wrench
can be inserted to turn off the curb stop
Fixture Risers Correct Answers Vertical sections of pipe located inside
the wall supply lines between the corporation stop and the building
Full Flow Correct Answers Describes a valve that does not restrict the
flow of a fluid through it compared to the potential flow through the
connected piping
Galvanic Corrosion Correct Answers Corrosion caused by a weak
electrical current that occurs when an electrical path exists between two
different metals
Hammer Arrestors Correct Answers Devices installed in a piping system
to absorb water hammer by gradually stopping the flow of water against
air or gas cushion
Hose Bibb (AKA Sill Cock/Bibcock) Correct Answers A faucet with a
threaded outlet, typically set at an angle to the inlet pipe, used to connect
a hose. Usually located on the outside of a building
SYSTEMS TEST WITH LATEST UPDATED (QUESTIONS AND
ANSWERS) ALREADY PASSED!
Angle Valve Correct Answers A valve whose internal design is similar
to a globe valve's but its outlet direction is 90 degrees from its inlet
Backing Board Correct Answers A short plank of wood installed
between wall framing (or sometimes the unfinished side of the wall
interior) used to mount fixture risers and stub-outs behind the fixture
Branch Correct Answers Any part of a piping system other than a riser,
main, or stack
Check Valve Correct Answers A valve that allows liquid to flow in only
one direction. Pressure and flow within the inlet line keeps the valve
open. Automatic closure of the valve occurs with the reversal of flow, by
the weight of the disc mechanism, or by spring action
Chlorination Correct Answers The use of chlorine gas or compounds to
disinfect water
Coagulation Correct Answers In water treatment processes, a thickening
of suspended or dissolved materials into a soft, semi-solid or solid mass
Corporation Stop Correct Answers A valve that connects the building
water service line to the water main
, Curb Stop Correct Answers A control valve installed in building water
supply lines between the corporation stop and the building
Curb Box (AKA Buffalo Box) Correct Answers A cylindrical casing
placed in the ground over the curb stop, into which a special key-wrench
can be inserted to turn off the curb stop
Fixture Risers Correct Answers Vertical sections of pipe located inside
the wall supply lines between the corporation stop and the building
Full Flow Correct Answers Describes a valve that does not restrict the
flow of a fluid through it compared to the potential flow through the
connected piping
Galvanic Corrosion Correct Answers Corrosion caused by a weak
electrical current that occurs when an electrical path exists between two
different metals
Hammer Arrestors Correct Answers Devices installed in a piping system
to absorb water hammer by gradually stopping the flow of water against
air or gas cushion
Hose Bibb (AKA Sill Cock/Bibcock) Correct Answers A faucet with a
threaded outlet, typically set at an angle to the inlet pipe, used to connect
a hose. Usually located on the outside of a building
