UPC: Ch 11 Storm Drainage exam questions fully solved & updated 2024

Storm water shall not be drained into sewers intended for ___________________. a. a combined sewer system b. sanitary drainage only c. a storm drain system d. a storm sewer system B Subsoil drains shall be piped to a ______________________. a. storm drain b. street curb c. alley d. all of the above D The perimeter of buildings having basements, cellars, or crawl spaces or floors below grade shall be provided with ____________________. a. backwater valves b. seepage pits c. subsoil drains d. leech lines C All rainwater sumps serving "public use" occupancy buildings shall be provided with __________________. a. single pumps b. dual pumps c. separate sumps d. overflow tanks B Roof drains, gutters, vertical conductors or leaders, and horizontal storm drains for primary drainage shall be sized based on ____________________. a. 30-minute 30-year storm b. 3 inches per hour c. 60-minute 100-year return period d. 6 inches per hour C The overflow level of the secondary drain inlet above the primary drain inlet shall be not less than ______________ inch(es) above the roof. a. 1 b. 2 c. 6 d. 12 B Leaders and storm drains, where connected to a combined sewer, shall be _____________. a. trapped b. identified c. crown vented d. over-sized A Of those listed, an approved material for conductors installed above ground level in buildings is ________________________. a. aluminum sheet metal b. ABS Schedule 40 c. PVC SDR 35 d. CPVC B The sizing data for horizontal storm drain piping is based on the pipes flowing __________. a. 1/2 full b. 3/4 full c. full d. at 2 percent velocity C Of those listed, roof drain strainers of the flat surface type may be installed on _______________. a. sun decks b. any roof c. secondary roof drains d. its upper terminal A Connection between the roof and roof drains that pass through the roof and into the interior of the building shall be made watertight by the use of ___________________. a. expansion joints b. caulking compound c. solvent cement d. proper flashing material D Roof areas of 10,000 square feet or less shall have no less than (controlled flow roof drainage) ___________________. a. two drains b. one drain c. one primary drain d. one secondary drain (overflow drain) A Of those listed, storm drain systems shall be tested upon completion of the rough piping by using _____________________. a. 10 foot head of water b. 4.34 psi air c. 4.34 inches mercury d. smoke or peppermint oil A Schedule 40 plastic DWV storm drain systems shall not be tested by ____________. a. water b. air c. 10 foot head of water d. water from low to high point B Calculations for the controlled flow roof drainage system shall be submitted along with plans to the ___________________________. a. architect b. plumber c. design engineer d. Authority Having Jurisdiction D The minimum size of a drain leader serving a roof with a projected area of 4,613 square feet and a rainfall rate of 3 inches per hour is _______________________. a. 2 inches b. 3 inches c. 4 inches d. 5 inches C The minimum size of a horizontal rain water pipe with a 1/8 inch per foot slope, serving a roof with a projected area of 10,700 square feet, and a rainfall rate of 2 inches per hour is __________________________. a. 2 inches b. 3 inches c. 5 inches d. 6 inches D