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 CPD exam has 100 questions and runs 3 hours 30 minutes.
These 10 free CPD questions are organized by exam domain, so you can see how each part of the Certified in Plumbing Design (CPD) blueprint is tested. Reveal the answer and explanation under each question.
During project kickoff, the plumbing designer discovers that the sanitary connection location shown in old drawings conflicts with current site conditions. What is the most appropriate next step?
Correct answer: A - Verify existing physical conditions and update design information before proceeding
A plumbing engineer is reviewing a new commercial project. The available municipal water service has lower pressure than required for the designed fixtures. Which design consideration should be evaluated first?
Correct answer: B - Determine system pressure requirements and evaluate whether an auxiliary pressure system is needed
A designer selects a drainage piping arrangement for a building renovation. Which system category includes drainage piping that removes wastewater from fixtures and also includes venting requirements?
Correct answer: C - Drainage, waste, and vent systems
A rainwater harvesting system is incorporated into a sustainable building design. Which design topic is being addressed?
Correct answer: B - Stormwater management and rainwater reuse
A plumbing engineer is sizing a pump serving a pumped piping system. Which information is most important for selecting the appropriate pump performance requirement?
Correct answer: B - The required flow rate and pressure/head conditions of the system
A facility adds a large domestic hot water system with long piping runs. Which design issue should receive particular attention because temperature changes can affect piping movement?
Correct answer: A - Expansion and contraction of piping systems
A potable water system includes equipment connected to a nonpotable source. What is the primary design concern addressed by backflow prevention?
Correct answer: B - Preventing unwanted reversal of contaminated water into the potable supply
A plumbing designer is preparing specifications for a project where the design intent is clearly defined but product brands may vary. Which specification method best fits this situation?
Correct answer: A - Descriptive specification
A project team is selecting a plumbing fixture that uses a recognized industry standard rather than detailed product requirements. Which specification approach is being used?
Correct answer: A - Reference standard specification
During construction review, a contractor submits an alternate piece of equipment that differs from the specified item. What is the plumbing engineer primarily evaluating?
Correct answer: A - Whether the substitute complies with contract documents and design intent
The CPD exam also covers these domains. Drill them in the full free practice test:
The full bank has 1,020 more CPD questions with explanations.
Continue in the free practice test →
View plans