COSC 325 Houston (plumbing) STUDY SET with detailed questions and 100% verified answers.ALREADY GRADED.

SS - CORRECT ANSWERS️️Sanitary Sewer ABS - CORRECT ANSWERS️️Black plastic material VTR - CORRECT ANSWERS️️vent through roof Primary Purpose of roof vent - CORRECT ANSWERS️️Let air into system What division is plumbing - CORRECT ANSWERS️️22 Invert Depth - CORRECT ANSWERS️️elevation of the bottom inside of the pipe DW - CORRECT ANSWERS️️Domestic Water CPVC (chlorinated polyvinyl chloride) - CORRECT ANSWERS️️hot and cold water supply, off white color FDC - CORRECT ANSWERS️️Fire Department Connection Above ground pipe material - CORRECT ANSWERS️️Metal 1 CFH (Cubic Feet per Hour) - CORRECT ANSWERS️️1000Btu/h OSHA requirement for fall protection - CORRECT ANSWERS️️6 feet OSHA requirement for trenching - CORRECT ANSWERS️️5 feet Wall thickness terms for copper - CORRECT ANSWERS️️Type L, K, M DWV - CORRECT ANSWERS️️abbreviation for drainage, waste, and vent. Found on "p" sheets What are the four groups of plumbing pipe and fitting material? - CORRECT ANSWERS️️Plastic, Copper, Cast Iron, Steel What is Expansion loop for? - CORRECT ANSWERS️️In plastic, provides an area for tubing to expand What plastic pipe is common for DWV? - CORRECT ANSWERS️️Schedule 40 ABS What is the max length of rigid plastic DWV pipe? - CORRECT ANSWERS️️35' What is ABS typically used for? - CORRECT ANSWERS️️Sanitary drainage, vent, aboveground and underground storm water drainage. What is PVC used for? - CORRECT ANSWERS️️Sanitary drainage, vent, aboveground and underground storm drainage, water mains, and water service lines. COLD WATER ONLY What is cpvc used for? - CORRECT ANSWERS️️Typically used for HW and CW distribution, Fire sprinkler pipes, water distribution What is PEX used for? - CORRECT ANSWERS️️Water service piping, CW and HW systems, used commonly in residential Hangers typically take up ___ of labor cost - CORRECT ANSWERS️️20% What is Copper pipe used for? - CORRECT ANSWERS️️Water supply, fire suppression, HVAC. Fairly rare. What is Cast-Iron no-hub and bell-and-spigot used for? - CORRECT ANSWERS️️aboveground and underground sanitary drain, vent, and storm water drainage. Bell and spigot typically underground