Traps, Interceptors, and Separators Flashcards
6 cards from real IPC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Traps, Interceptors, and Separators flashcards as text
According to the IPC, what is the required water seal depth for a standard fixture trap?
Answer: 2 inches
The IPC requires a minimum water seal depth of 2 inches and a maximum of 4 inches for standard fixture traps.
What does the IPC specify about the use of double trapping on a plumbing fixture?
Answer: Double trapping is prohibited
The IPC prohibits double trapping — installing two traps in series on the same fixture drain — because it creates a trapped air space that impedes drainage.
Under the IPC, what type of trap is specifically prohibited for use in drainage systems?
Answer: S-trap
The IPC prohibits S-traps because their configuration makes them highly susceptible to self-siphonage, which can empty the trap seal.
According to the IPC, what is the minimum size grease interceptor required for a commercial kitchen with three compartment sinks?
Answer: The size is determined by flow rate calculation, not a fixed size
The IPC requires grease interceptor sizing based on flow rate calculations considering the number and type of fixtures connected, not a single fixed size.
What does the IPC require regarding maintenance access to interceptors and separators?
Answer: They must have readily accessible covers for cleaning and maintenance
The IPC requires that all interceptors and separators have readily accessible covers or access points for regular cleaning and maintenance.
Under the IPC, what is the purpose of a trap primer?
Answer: To maintain the water seal in traps subject to evaporation
A trap primer maintains the water seal in floor drain traps and other infrequently used traps by periodically adding water to replace water lost to evaporation.