Pipe Systems & Materials Flashcards
6 cards from real Plumbing practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Pipe Systems & Materials flashcards as text
Which pipe joint method uses heat to melt and fuse thermoplastic pipes together?
Answer: Butt fusion
Butt fusion uses a heating plate to melt the ends of thermoplastic pipes, which are then pressed together to form a permanent fused joint.
What is the correct way to measure the length of pipe needed for a socket-type fitting connection?
Answer: Add the socket depth to each end of the face-to-face measurement
When calculating pipe length for socket fittings, you must add the socket depth for each fitting end to the face-to-face measurement to get the total cut length.
ABS pipe is typically used in which application?
Answer: Drain, waste, and vent systems
ABS (acrylonitrile butadiene styrene) pipe is primarily used in drain, waste, and vent (DWV) systems due to its impact resistance and affordability.
What is the purpose of pipe strapping or hangers?
Answer: To support and secure pipe runs to prevent sagging
Pipe straps and hangers support and secure pipe runs to structural members, preventing sagging, movement, and stress on joints.
What material should NEVER be used to join copper pipe to a gas appliance connector?
Answer: Aluminum fittings
Aluminum fittings should never be used with copper pipe in gas connections because the two metals can corrode each other through galvanic action.
Which type of valve provides the best flow control for plumbing systems because it operates fully open or fully closed?
Answer: Gate valve
Gate valves are designed to operate fully open or fully closed, providing minimal flow restriction when open and are ideal as isolation valves.