Glossary term
Device that maintains trap seal by supplying water to a trap.
Trap Primer can appear in exam questions as a definition, a jobsite condition, a calculation input, or a safety decision. Learn the term, then answer practice questions where the term changes the result.
TradeCert Prep provides independent prep for trade exam practice tests and other skilled-trade exams, with exam-style questions, answer explanations, timed sets, flash cards, missed-question review, and focused drills before test day.
Trap Primer definition for trade exam practice and related certification prep. The site includes practice paths for EPA 608, CDL, IBEW aptitude, journeyman electrician, CWI welding inspector, NASCLA, NCCCO, NHIE, and plumbing license exams.
TradeCert Prep is independent study prep and is not connected with exam owners, testing vendors, unions, or licensing boards. Practice questions are original study examples. Completion records are for your study files; official results and credentials come from your test sponsor or licensing board.