COSC 325 Plumbing Exam/15 Questions
with Accurate Solutions
Fitting - - A device fastened to the end of pipes to make connections
between individual pipes
- Valve - - is a fitting used to regulate fluid flow within a system
- PVC (Polyvinyl Chloride) - - plastic pipe and fittings used for sanitary
drainage and vent piping, above ground and underground storm water
drainage, water mains, and water service lines
- PEX (Cross linked Polyethylene) - - is a mosetting plastic made from
medium or high-density cross-linkable polyethylene and is used for water
service piping and cold and hot water
- CPVC (Chlorinated Polyvinyl Chloride) - - cream colored thermoplastic
material specially formulated to withstand higher temperatures than other
plastics, and are used in potable water distribution, corrosive industrial fluid
handling, and fire suppression systems
- Copper - - · - used for water supply and distribution piping, fire
suppression systems, and heating, ventilating, and air conditioning
applications
- Drawn copper tube/hard coper tube - copper tubing that is pulled through a
single die or series of dies to achieve desired diameter
- Annealed copper tube/soft copper tube - drawn copper tubing that is
heated to a specific temperature and cooled at a predetermined rate to
impact desired strength and hardness characteristics
- Cast iron - - primarily used for above ground and underground sanitary
drainage, vent, and storm water drainage piping
- Expansion loop - - is a loop in plastic tubing and provides an area for the
tubing to expand and contract without stressing
- DWV - - drainage, waste, and venting applications
- Wall thickness for different pipes - - a. Plastic -
b. Copper - Types K,L,M,and DWV. Type K has the thickest wall, followed by
L, type M, and type DWV with the thinnest wall
c. Steel - nominal pipe sizes ranging from 1/8" to 12" in several different wall
thicknesses
with Accurate Solutions
Fitting - - A device fastened to the end of pipes to make connections
between individual pipes
- Valve - - is a fitting used to regulate fluid flow within a system
- PVC (Polyvinyl Chloride) - - plastic pipe and fittings used for sanitary
drainage and vent piping, above ground and underground storm water
drainage, water mains, and water service lines
- PEX (Cross linked Polyethylene) - - is a mosetting plastic made from
medium or high-density cross-linkable polyethylene and is used for water
service piping and cold and hot water
- CPVC (Chlorinated Polyvinyl Chloride) - - cream colored thermoplastic
material specially formulated to withstand higher temperatures than other
plastics, and are used in potable water distribution, corrosive industrial fluid
handling, and fire suppression systems
- Copper - - · - used for water supply and distribution piping, fire
suppression systems, and heating, ventilating, and air conditioning
applications
- Drawn copper tube/hard coper tube - copper tubing that is pulled through a
single die or series of dies to achieve desired diameter
- Annealed copper tube/soft copper tube - drawn copper tubing that is
heated to a specific temperature and cooled at a predetermined rate to
impact desired strength and hardness characteristics
- Cast iron - - primarily used for above ground and underground sanitary
drainage, vent, and storm water drainage piping
- Expansion loop - - is a loop in plastic tubing and provides an area for the
tubing to expand and contract without stressing
- DWV - - drainage, waste, and venting applications
- Wall thickness for different pipes - - a. Plastic -
b. Copper - Types K,L,M,and DWV. Type K has the thickest wall, followed by
L, type M, and type DWV with the thinnest wall
c. Steel - nominal pipe sizes ranging from 1/8" to 12" in several different wall
thicknesses
