Question 1
A vertical pipe installed to provide circulation of air to and from the drainage system, which receives no discharge from any fixture, is defined as a:
Show answer & explanation
Correct answer: B - Vent stack
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 PI exam has 50 questions and runs 12 minutes.
These 10 free PI questions are organized by exam domain, so you can see how each part of the Predictive Index Assessment blueprint is tested. Reveal the answer and explanation under each question.
A vertical pipe installed to provide circulation of air to and from the drainage system, which receives no discharge from any fixture, is defined as a:
Correct answer: B - Vent stack
A contractor backfills a section of building sewer before the required inspection is performed. Under the administrative provisions of the code, the inspector is authorized to:
Correct answer: A - Require the covered work to be exposed for inspection
An inspector observes a water heater in an interior utility room. The temperature and pressure relief valve discharge pipe is full size, is not threaded at its end, drains by gravity, and terminates about 4 inches above the bottom of the water heater's drain pan. Under the UPC, this installation is:
Correct answer: C - Not acceptable, because discharge into the pan is prohibited
Fuel-burning water heaters are prohibited in a bedroom, or in a closet opening directly into a bedroom, EXCEPT where the appliance is:
Correct answer: D - A direct-vent appliance drawing combustion air from outdoors
A commercial lawn irrigation system injects liquid fertilizer downstream of the backflow protection, and electric solenoid valves hold the zone piping under pressure continuously. The MINIMUM acceptable backflow protection for this connection is a:
Correct answer: D - Reduced pressure principle assembly (RP)
An atmospheric vacuum breaker is installed on a hose bibb serving a janitor's sink. Which condition would make this device unacceptable?
Correct answer: A - A shutoff valve is installed downstream of the device
Water rises 46 feet from the water meter to the highest fixture outlet in a building. When sizing the water distribution system, the pressure loss attributable to this elevation is approximately:
Correct answer: B - 19.9 psi
Absent approval from the Authority Having Jurisdiction for a reduced grade, a 3-inch horizontal drain 32 feet in length installed at the minimum slope required by the UPC will have a total fall of:
Correct answer: C - 8 inches
Each cleanout shall be installed so that it opens:
Correct answer: A - In the direction of flow, or at right angles to it
An individual vent serving a 3-inch fixture drain shall have a diameter of not less than:
Correct answer: B - 1-1/2 inches
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