Cosc 325 Plumbing Exam/61
Complete Q’s and A’s
Pipe - - Cylindrical time used for conveying potable water, wastewater, and
waterborne waste
- Fitting - - a device fastened to the end of pipes to make connections
between individual pipes
- valve - - a fitting used to regulate fluid low within a system
- meter - - a device used to measure and indicate fluid flow
- Plastic piping - - .Resistant to most household chemicals
.smooth interior walls
.low thermal conductivity
.does not decay and resist bacteria growth
. good flexibility
.does not conduct electricity
- PVC Uses - - . Sanitary drainage
. vent piping
. stormwater drainage
. water mains
. water service lines
- PEX Uses - - .water service piping
. cold and hot water distribution
- CPVC Uses - - . hot and cold water distribution systems
. potable water distributions
. corrosive industrial fluid handling
. fire suppression systems
- Copper Uses - - . Water supply
. distribution piping
. fire suppression
. heating
. ventilating
. air conditioning
- Copper sizes - - Type K (Thickest)
Type L
Type M
, Type DWV (Thinnest)
- Cast Iron Uses - - . ensures uniform wall thickness
. ensures straight length
. Smooth inner wall
. quiet
. sanitary drainage
. Venting
. stormwater drainage piping
- Expansion Loop - - A loop in plastic tubing that provides an area for the
tubing to expand and contract without stressing
- DWV (Drain waste vent system) - - part of a system that allows air to enter
a plumbing system to maintain proper air pressure to enable removal of
sewage and waste
- Plastic wall thickness - - 20, 40 , 80 The higher the thicker
- Shut off valve - - valve designed to be used in a fully closed or fully open
position
- control valve - - designed to control fluid flow rate by partially opening or
closing a valve
- rated valve - - meets or exceeds engineering criteria for the normal
pressure range of fluids contained within the system it is controlling
- gate valve - - has an internal gate that slides over an opening through
which water flows
- Angle valves - - A globe valve in which the inlet and outlet are at 90
degrees to each other.
. Provides less resistance to water flow
. Reduces number of joints
- Sillcock valve - - valve with an intregal external threads installed on an
exterior of a building for a garden hose attachment
- Vacuum Breaker - - a back flow prevention device that consist of a spring
loaded check valve that seals against an atmospheric outlet when water is
turned on.
- Boiler drain - - a valve with hose threads that is installed on a tank for
drainage
Complete Q’s and A’s
Pipe - - Cylindrical time used for conveying potable water, wastewater, and
waterborne waste
- Fitting - - a device fastened to the end of pipes to make connections
between individual pipes
- valve - - a fitting used to regulate fluid low within a system
- meter - - a device used to measure and indicate fluid flow
- Plastic piping - - .Resistant to most household chemicals
.smooth interior walls
.low thermal conductivity
.does not decay and resist bacteria growth
. good flexibility
.does not conduct electricity
- PVC Uses - - . Sanitary drainage
. vent piping
. stormwater drainage
. water mains
. water service lines
- PEX Uses - - .water service piping
. cold and hot water distribution
- CPVC Uses - - . hot and cold water distribution systems
. potable water distributions
. corrosive industrial fluid handling
. fire suppression systems
- Copper Uses - - . Water supply
. distribution piping
. fire suppression
. heating
. ventilating
. air conditioning
- Copper sizes - - Type K (Thickest)
Type L
Type M
, Type DWV (Thinnest)
- Cast Iron Uses - - . ensures uniform wall thickness
. ensures straight length
. Smooth inner wall
. quiet
. sanitary drainage
. Venting
. stormwater drainage piping
- Expansion Loop - - A loop in plastic tubing that provides an area for the
tubing to expand and contract without stressing
- DWV (Drain waste vent system) - - part of a system that allows air to enter
a plumbing system to maintain proper air pressure to enable removal of
sewage and waste
- Plastic wall thickness - - 20, 40 , 80 The higher the thicker
- Shut off valve - - valve designed to be used in a fully closed or fully open
position
- control valve - - designed to control fluid flow rate by partially opening or
closing a valve
- rated valve - - meets or exceeds engineering criteria for the normal
pressure range of fluids contained within the system it is controlling
- gate valve - - has an internal gate that slides over an opening through
which water flows
- Angle valves - - A globe valve in which the inlet and outlet are at 90
degrees to each other.
. Provides less resistance to water flow
. Reduces number of joints
- Sillcock valve - - valve with an intregal external threads installed on an
exterior of a building for a garden hose attachment
- Vacuum Breaker - - a back flow prevention device that consist of a spring
loaded check valve that seals against an atmospheric outlet when water is
turned on.
- Boiler drain - - a valve with hose threads that is installed on a tank for
drainage
