10 exam-style questions with answers and explanations, straight from our 1,030-question bank. Tap an answer to check yourself. When you're ready, take the scored version in the free practice test.
The CT-P2 exam has 70 questions and runs 2 hours 30 minutes.
These 10 free CT-P2 questions are organized by exam domain, so you can see how each part of the Connecticut P-2 Unlimited Journeyperson Plumber License Exam blueprint is tested. Reveal the answer and explanation under each question.
A Connecticut P-2 license holder is offered a paid weekend plumbing job directly by a homeowner. The homeowner offers to obtain the permit, and the work is within the journeyperson's technical experience. The P-2 holder has no contractor license. Which arrangement stays within the P-2 license's employment restriction?
Correct answer: B - Work as an employee of a contractor licensed for that plumbing work.
At a required cleanout location on a 6-inch horizontal drain, the installer provides a 4-inch cleanout opening with 20 inches of unobstructed working clearance in front. The plug is readily accessible, correctly oriented, and removable. Under the 2021 International Plumbing Code, what should the size-and-clearance review conclude?
Correct answer: B - Retain the arrangement; both the opening size and working clearance comply.
An apartment shower becomes noticeably hotter when a nearby toilet refills. The building has an ASSE 1017 distribution mixing valve, but the shower has an ordinary two-handle valve with no automatic compensation. For a replacement governed by the 2021 International Plumbing Code, which change addresses the missing shower protection?
Correct answer: A - Install an ASSE 1016 shower valve limited to 120°F maximum.
Since a check valve was installed at the water meter, a home's water pressure rises from 58 psi to 112 psi during each water-heater recovery cycle. With the heater off and all fixtures closed, pressure stays at 58 psi. The thermostat shuts off normally, and opening a faucet immediately lowers the pressure. No expansion tank is installed. What best explains this pattern?
Correct answer: B - Thermal expansion of water trapped downstream of the new check valve.
A private-well service log records normal pump cut-in at 40 psi and cut-out at 60 psi. During a steady faucet draw, however, the pump cycles every few seconds and measured tank drawdown is far below its rated volume. With every outlet closed, the pump reaches 60 psi, stops, and system pressure holds. These findings point most directly to:
Correct answer: D - Loss of the pressure tank's air cushion, reducing its usable drawdown volume.
At the inlet to a proposed water-distribution system, pressure is 74 psi with no flow and 58 psi at design demand. The highest fixture is 30 feet above that gauge. At design demand, piping will lose 7 psi and the downstream meter/backflow assembly will lose another 5 psi. The fixture manufacturer requires 25 psi while flowing. Using 0.433 psi per foot of elevation, which assessment is correct?
Correct answer: A - About 33 psi will remain; the fixture's flowing-pressure requirement is met.
A bathroom has a compliant horizontal wet vent under the 2021 International Plumbing Code. In the direction of drainage flow, a dry-vented lavatory connects first, the bathtub connects next, and the water closet connects last. An independently vented kitchen sink is being added to the same horizontal branch. Where can its drain connect while preserving the bathroom's wet-vent arrangement?
Correct answer: D - Downstream of the water-closet connection, beyond the entire wet-vented section.
A potable-water makeup line supplies a closed process loop containing a toxic corrosion inhibitor. The loop pump can raise its pressure above the potable supply pressure, and the makeup connection remains pressurized continuously. A direct connection using a testable backflow assembly is permitted for this installation. Which selection addresses the actual hazard?
Correct answer: D - A reduced-pressure-principle backflow prevention assembly with a relief zone.
Two parallel pipe runs require a rolling offset of 6 inches vertically and 8 inches laterally. The connecting pipe will make a 45-degree angle with the parallel runs. Each of the two 45-degree fittings has a 1-1/4-inch takeoff measured from the fitting center to the end of the fully installed pipe; insertion is already included. To the nearest 1/8 inch, how long should the connecting pipe be cut?
Correct answer: C - 11-5/8 inches
Before pipe installation, a competent person examines a 4.5-foot-deep trench and finds no indication of a potential cave-in. Other hazards have been addressed, but the nearest safe exit would require 32 feet of lateral travel from the work position. Which requirement remains unmet under OSHA's excavation rules?
Correct answer: C - Safe egress must be available within 25 feet of lateral travel.
The CT-P2 exam also covers these domains. Drill them in the full free practice test:
The full bank has 1,020 more CT-P2 questions with explanations.
Continue in the free practice test →
View plans