California C-36 Plumbing Contractor Practice Test

Answer choices

1. A. Omit the pan if the heater has a manufacturer warranty longer than six years.
2. B. Use a floor mat under the heater because absorbent material qualifies as a drain pan.
3. C. Provide the required safety pan and drain arrangement for the installation location.
4. D. Install a larger T&P valve because relief-valve size substitutes for leak protection.

Wrong-answer review

• A. Omit the pan if the heater has a manufacturer warranty longer than six years.: Incorrect. The proposed action — Omit the pan if the heater has a manufacturer warranty longer than six years. — does not satisfy the controlling principle for this scenario: water heaters installed where leakage could cause building damage require the applicable pan and drain protection.
• B. Use a floor mat under the heater because absorbent material qualifies as a drain pan.: Incorrect. The proposed action — Use a floor mat under the heater because absorbent material qualifies as a drain pan. — does not satisfy the controlling principle for this scenario: water heaters installed where leakage could cause building damage require the applicable pan and drain protection.
• D. Install a larger T&P valve because relief-valve size substitutes for leak protection.: Incorrect. The proposed action — Install a larger T&P valve because relief-valve size substitutes for leak protection. — does not satisfy the controlling principle for this scenario: water heaters installed where leakage could cause building damage require the applicable pan and drain protection.

Answer choices

1. A. Reroute or provide safe access so the valve and service points remain maintainable.
2. B. Leave the valve inaccessible and rely on the building main during maintenance.
3. C. Remove the valve handle to reduce the space needed above the equipment.
4. D. Install a second inaccessible valve so either one can be used if the other fails and document the completed condition in the turnover record.

Answer choices

1. A. The approved shutdown window, affected occupants, isolation points, and restoration plan.
2. B. Only the new valve model because occupants do not need notice for plumbing work with the decision noted in the project coordination log.
3. C. A building-wide power shutdown so all systems restart at the same time.
4. D. A permanent bypass around every fixture to eliminate the need for communication.

Answer choices

1. A. Assume the vent is adequate because it served the original fixtures without complaints and carry that assumption through the bid as written.
2. B. Measure the roof opening only and use that dimension as the vent capacity.
3. C. Recalculate the connected vent load and verify the existing vent arrangement against current code requirements.
4. D. Count the number of fixture rooms without considering the fixtures actually connected.

Answer choices

1. A. Remove the cap and terminate the discharge piping as required, with an unthreaded open end at an approved location.
2. B. Drill a small hole in the cap so pressure can escape.
3. C. Leave the cap in place and add a second relief valve to the tank.
4. D. Replace the cap with a threaded plug and mark it 'relief'.

Answer choices

1. A. Cut the framing as needed because plumbing layout takes priority in remodels.
2. B. Reduce pipe sizes until they fit through the framing without recalculation.
3. C. Coordinate an approved reroute or structural solution instead of cutting or notching members without authorization.
4. D. Use flexible hose through the structural member because flexible materials do not affect structure and note that repair decision in the service documentation.

Answer choices

1. A. $3,600
2. B. $4,800
3. C. $5,040
4. D. $4,200

Answer choices

1. A. Ignore the listing because project drawings are the only enforceable document.
2. B. Ignore the project detail because manufacturer instructions automatically amend the contract with that selection recorded in the final fixture schedule.
3. C. Combine portions of both details in the field without documenting the change.
4. D. Coordinate the conflict and obtain an approved installation that satisfies code, listing, and project requirements.

Answer choices

1. A. Allow the first trade to install and require later trades to route around it.
2. B. Reduce all plumbing pipe sizes one nominal size to create space.
3. C. Resolve the trade conflict through coordinated drawings or field layout before any trade installs work that blocks the others.
4. D. Move the plumbing into a rated wall without checking penetration requirements.

Answer choices

1. A. Required protection against physical damage at the vulnerable framing locations.
2. B. Only pipe insulation because gas piping does not require nail protection with the field decision documented before concealment.
3. C. A larger gas regulator so a puncture produces less pressure loss.
4. D. A warning label on the wall surface in place of physical protection.