MEP Midterm and Final Questions with Detailed Verified
Answers
Plumbing Material Ans: ✓ ✓ ✓ A network of Pipes, Fittings and Valves that carry and control flow
of supply water and wastewater to and from points of use known as fixtures
What are the Four characteristics for selecting pipe materials? Ans: ✓ ✓ ✓ 1.Durability
2.Pressure
3.Temperature
4.Price
T/F: Carbon Steel Pipe is the most common material for conveying hot water in hydronic heating
systems Ans: ✓ ✓ ✓ True
PEX Pipe Ans: ✓ ✓ ✓ -Made of Cross Linked HDPE(High Density Polyethylene)
-Strong and Flexible, Can withstand temps above 200 and below 32
-Uses Fewer Connectors Making it easier to install
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Copper Pipe Comes in What two Types Ans: ✓ ✓ ✓ 1.Rigid
2.Flexible
T/F: Copper is corrosion resistant and very reliable Ans: ✓ ✓ ✓ True
Galvanized Steel Pipe Ans: ✓ ✓ ✓ -Protects From Rusting
-Dipped into Molten Zinc to provide Proctective boundary from corrosiveness
-Used for larger systems
Brass Pipe Ans: ✓ ✓ ✓ -Used in lieu of PVC pipe for exposed waste lines
-Easily cut with hacksaw and joined with fittings
Cast Iron Pipe Ans: ✓ ✓ ✓ -High Quality Sanitary Waste Pipe that is very heavy and deadens sound
of flowing water
-Rarely used in new construction anymore
Piping Joining Methods(Grooved) Ans: ✓ ✓ ✓ -Consist of two grooved pipe ends
-Connected With Coupling Key with rubber Gasket to create seal
Piping Joining Methods(Flanged) Ans: ✓ ✓ ✓ -Gasket is placed between two flange components
and bolted together for a leak free joint
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