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 VA-MP exam has 80 questions and runs 3 hours 30 minutes.
These 10 free VA-MP questions are organized by exam domain, so you can see how each part of the Virginia Master Plumber Exam blueprint is tested. Reveal the answer and explanation under each question.
A Virginia master plumbing license expired 18 months ago. The holder has completed the required plumbing continuing education and has performed no regulated work since expiration. Which path applies?
Correct answer: B - Use reinstatement; do not resume regulated work until the license is restored
Which applicant, based only on the facts given, clearly satisfies a current Virginia route to sit for the master-level plumbing examination?
Correct answer: C - A journeyman plumber who has held a valid journeyman license for 14 months
A four-story building is designed with a 4-inch soil stack. The connected load is 300 DFU, and the most heavily loaded branch interval carries 95 DFU. For a 4-inch stack, the limits are 500 DFU total and 90 DFU in any one branch interval. How should the design be evaluated?
Correct answer: B - Noncompliant; the 95-DFU branch interval exceeds the 90-DFU limit
In a three-story building, only the basement restroom fixtures are below the elevation of the next upstream public-sewer manhole cover. All fixtures on the upper floors are above that elevation. How should backwater protection be arranged?
Correct answer: D - Protect the basement branch; connect upper-floor fixtures downstream for gravity drainage
A same-floor bathroom group is horizontally wet vented with a 2-inch branch. A kitchen sink from the adjacent room is connected into the wet-vented section between the lavatory and water closet. What is the defect?
Correct answer: C - The kitchen sink cannot discharge into a horizontal wet vent serving only bathroom-group fixtures
A public water-closet flushometer is 50 feet above a 74-psi service entrance. Known meter and valve losses are 9 psi, and the proposed pipe size adds 10 psi of friction loss at design flow. Using 0.433 psi loss per foot of rise and a required 35-psi residual at the flushometer, is the proposed size adequate?
Correct answer: D - No; after all losses, the outlet residual is about 33.4 psi, below the required 35 psi
A closed-loop boiler contains toxic treatment chemicals. Because the boiler can operate above the potable-supply pressure, its makeup connection is exposed to both a health hazard and backpressure. The equipment requires a direct pressurized connection. Which backflow protection is appropriate?
Correct answer: A - A reduced-pressure-principle backflow prevention assembly (RPZ)
A low-slope roof has primary drains at the low points and secondary drains with inlets 2 inches higher. The secondary piping joins the primary leader before the leader exits the building. Which revision preserves the intended emergency function?
Correct answer: B - Give the secondary system equal capacity and an independent, visible above-grade discharge
A prefabricated shower has an interior floor 28 inches by 34 inches, documented as 952 square inches, a 24-inch clear door opening, and adequate receptor slope. The minimums are 900 square inches of area, a 30-inch-diameter circle, and a 22-inch door opening. The shower is:
Correct answer: C - Noncompliant: although the area and opening pass, a 30-inch circle cannot fit across the 28-inch dimension
During rough-in, a copper tube passes through a stud with only 1 inch between the tube and the nearest face of the framing. What protection is required at that vulnerable location?
Correct answer: A - A steel shield plate at least 0.0575 inch thick (No. 16 gage)
The VA-MP exam also covers these domains. Drill them in the full free practice test:
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