Pipefitting Nccer Level
2 Exam 2024
Gravity flow systems - ✔✔✔ANSWER-Consist of piping that is sloped to allow
flow and is not pressurized. These systems usually includes storm and sanitary
during services.
Boiling - ✔✔✔ANSWER-When water flows upward into the bottom of the cut. A
high water table is one of the causes of boiling.
Trench width and depth - ✔✔✔ANSWER-Determines the load that the pipe has to
support once backfilling is complete
Thrust blocks - ✔✔✔ANSWER-Designed by engineers, help restrain the forces in
an underground piping system
Excavate bell holes - ✔✔✔ANSWER-For each pipe joint
Trenchless pipelaying - ✔✔✔ANSWER-The general name for methods of burying
pipe lines that do not involve digging trenches
, Boring to run plastic pipeline through the ground - ✔✔✔ANSWER-A weak link
must be used when mechanically pulling polyethylene pipe
Hairpin - ✔✔✔ANSWER-A large steel hook that slides into the pipe from one end
to lift the pipe
Stacking Pipe - ✔✔✔ANSWER-Stack all the pipe on timbers or elevated concrete
supports to keep the bottom layer off the ground
Always plays Timbers - ✔✔✔ANSWER-Between layers
Concrete Pipes - ✔✔✔ANSWER-Should be stored or stacked as close to the
installation area as possible. Set the pipe on blocks placed under the pipe barrel
tude avoid damaging the ends.
Cast iron soil, pipe, and fittings - ✔✔✔ANSWER-Do not leak or absorb water,
they are easily cut and joined.
Major disadvantage of cast-iron pipe - ✔✔✔ANSWER-It is very heavy material
with low, tensile strength, and is easily broken when mishandled.
Cast iron soil pipe is available in three basic types, - ✔✔✔ANSWER-single hub
soil pipe, double hub soil pipe, and hubless soil pipe
Bell and spigot Pipe - ✔✔✔ANSWER-Currently available in two different wall
thickness is or weights: service weight an extra heavy weight. Service weight cast
iron pipe is marked SV and extra heavy weight cast-iron pipe is marked XH.
2 Exam 2024
Gravity flow systems - ✔✔✔ANSWER-Consist of piping that is sloped to allow
flow and is not pressurized. These systems usually includes storm and sanitary
during services.
Boiling - ✔✔✔ANSWER-When water flows upward into the bottom of the cut. A
high water table is one of the causes of boiling.
Trench width and depth - ✔✔✔ANSWER-Determines the load that the pipe has to
support once backfilling is complete
Thrust blocks - ✔✔✔ANSWER-Designed by engineers, help restrain the forces in
an underground piping system
Excavate bell holes - ✔✔✔ANSWER-For each pipe joint
Trenchless pipelaying - ✔✔✔ANSWER-The general name for methods of burying
pipe lines that do not involve digging trenches
, Boring to run plastic pipeline through the ground - ✔✔✔ANSWER-A weak link
must be used when mechanically pulling polyethylene pipe
Hairpin - ✔✔✔ANSWER-A large steel hook that slides into the pipe from one end
to lift the pipe
Stacking Pipe - ✔✔✔ANSWER-Stack all the pipe on timbers or elevated concrete
supports to keep the bottom layer off the ground
Always plays Timbers - ✔✔✔ANSWER-Between layers
Concrete Pipes - ✔✔✔ANSWER-Should be stored or stacked as close to the
installation area as possible. Set the pipe on blocks placed under the pipe barrel
tude avoid damaging the ends.
Cast iron soil, pipe, and fittings - ✔✔✔ANSWER-Do not leak or absorb water,
they are easily cut and joined.
Major disadvantage of cast-iron pipe - ✔✔✔ANSWER-It is very heavy material
with low, tensile strength, and is easily broken when mishandled.
Cast iron soil pipe is available in three basic types, - ✔✔✔ANSWER-single hub
soil pipe, double hub soil pipe, and hubless soil pipe
Bell and spigot Pipe - ✔✔✔ANSWER-Currently available in two different wall
thickness is or weights: service weight an extra heavy weight. Service weight cast
iron pipe is marked SV and extra heavy weight cast-iron pipe is marked XH.
