Fixtures & Appliances 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 Fixtures & Appliances flashcards as text
What is the purpose of a garbage disposal air gap on a dishwasher drain connection?
Answer: To prevent dishwasher drain water from backflowing into the dishwasher
The dishwasher drain air gap (or high loop) prevents dirty drain water in the sink from backflowing into the dishwasher through the drain hose.
What is the minimum clearance required in front of a toilet per the IPC?
Answer: 21 inches
The IPC requires a minimum clearance of 21 inches in front of a water closet (toilet) to allow for use and maintenance.
What type of faucet valve uses a rotating ceramic disc to control water flow?
Answer: Ceramic disc valve
A ceramic disc valve uses two precisely mated ceramic discs that rotate against each other to control flow and temperature, offering long life and precise control.
What safety feature is required on a tub/shower valve to prevent scalding?
Answer: Pressure balancing valve or thermostatic mixing valve
A pressure-balancing or thermostatic mixing valve is required on tub/shower controls to prevent scalding when a toilet is flushed or another fixture is used simultaneously.
What is the purpose of a wax ring when installing a toilet?
Answer: To create a watertight seal between the toilet horn and the floor flange
The wax ring creates a watertight and airtight seal between the toilet's horn (outlet) and the floor flange, preventing waste leakage and sewer gas entry.
What is 'rough-in plumbing'?
Answer: The installation of supply and drain pipes before walls and floors are finished
Rough-in plumbing refers to the installation of supply and drain/vent pipes during the framing stage, before walls, ceilings, and floors are closed in.