Plumbing Questions with Answers

Plumbing Questions with Answers Building sewers shall be tested by completely filling the sewer with water from the ______ A. Lowest to highest point B. Lowest to at least 5' head C. Lowest to at least 10' head D. Lowest to at least ground level - Answer-C. Lowest to at least 10' head Hot and cold water piping may be tested with ____ A. 40 psi-150 psi water for 10 minutes B. 35 psi for at least 15 minutes C. 50 psi or the working pressure of the water in the system for at least 15 minutes D. 100 psi of air for at least 10 minutes - Answer-C. 50 psi or the working pressure of the water in the system for at least 15 minutes The required clearance in front of a 3" cleanout is ____ A. 12" B. 18" C. 24" D. 36" - Answer-B. 18" A stack as defined in the code is ____ A. Main vent B. Any vertical vent C. The vertical main of a soil, waste, or vent piping which extends one or stories D. Horizontal main of a soil, waste, or vent stack - Answer-C. The vertical main of a soil, waste, or vent piping which extends one or stories