A bank of 210 exam style questions for plumbing licensing exam candidates. Every answer comes with a four part rationale: why the correct answer is right, why the others are wrong, the principle behind it, and the takeaway to remember.
Sample question 1. BASICS: A plumber installs and repairs systems for water, drainage, and:
A. roads
B. internet
C. gas/piping
D. electricity
Answer: C. Correct: A plumber installs and repairs systems for water, drainage, and gas or piping. Why the other choices are wrong: Electricity, internet, and roads are handled by other trades, not plumbing. Principle: Plumbing covers the supply, drainage, and fuel-gas piping of a building. Takeaway: Plumbing includes water, drainage, and gas.
Sample question 2. WATER: Potable water is water that is safe to:
A. burn
B. paint with
C. weld
D. drink
Answer: D. Correct: Potable water is water that is safe to drink. Why the other choices are wrong: Painting, burning, and welding are not what defines potability. Principle: Potable means fit for human consumption. Takeaway: Potable water is drinkable water.
Sample question 3. DRAINAGE: The DWV system stands for Drain, Waste, and:
A. Water
B. Volume
C. Valve
D. Vent
Answer: D. Correct: DWV stands for Drain, Waste, and Vent. Why the other choices are wrong: Water, Valve, and Volume are not the V in DWV. Principle: The DWV system carries waste out and admits air for proper flow. Takeaway: DWV is Drain, Waste, and Vent.
What you get on iKuiz
210 questions for this exam, in Live Test, Study Mode, Flashcards, and MyTutor, a personal AI style tutor that teaches one concept at a time.
A readiness score that tells you honestly whether you are prepared, plus your weak areas by topic.
Every question read aloud if you want it, and a new free Question of the Day every day.
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