SC Plumber Contractor Practice Questions - South Carolina Plumber Contractor Examination Exam

Access More Questions

A commercial water heater is installed on a water-distribution system that already has a pressure-reducing valve at the meter. What additional device is required to control thermal expansion?

A second pressure-reducing valve at the heater A thermal-expansion tank or other listed expansion-control device A vacuum breaker on the cold-water inlet A reduced-pressure-principle backflow preventer on the T&P discharge

Correct Answer:

A thermal-expansion tank or other listed expansion-control device

Access more questions from this quiz

Continue to SC Plumber Contractor Practice Questions - South Carolina Plumber Contractor Examination Exam for more practice questions and the full quiz experience.

Access More Questions