COSC 325 HOUSTON (PLUMBING) QUESTIONS AND ANSWERS | 100% SOLVED

COSC 325 HOUSTON (PLUMBING)
QUESTIONS AND ANSWERS SOLVED
100% CORRECT.

SS - ANSWERS-Sanitary Sewer



ABS - ANSWERS-Black plastic material



VTR - ANSWERS-vent through roof



Primary Purpose of roof vent - ANSWERS-Let air into system



What division is plumbing - ANSWERS-22



Invert Depth - ANSWERS-elevation of the bottom inside of the pipe



DW - ANSWERS-Domestic Water



CPVC (chlorinated polyvinyl chloride) - ANSWERS-hot and cold water supply,
off white color



FDC - ANSWERS-Fire Department Connection



Above ground pipe material - ANSWERS-Metal



1 CFH (Cubic Feet per Hour) - ANSWERS-1000Btu/h

, OSHA requirement for fall protection - ANSWERS-6 feet



OSHA requirement for trenching - ANSWERS-5 feet



Wall thickness terms for copper - ANSWERS-Type L, K, M



DWV - ANSWERS-abbreviation for drainage, waste, and vent. Found on "p"
sheets



What are the four groups of plumbing pipe and fitting material? - ANSWERS-
Plastic, Copper, Cast Iron, Steel



What is Expansion loop for? - ANSWERS-In plastic, provides an area for
tubing to expand



What plastic pipe is common for DWV? - ANSWERS-Schedule 40 ABS



What is the max length of rigid plastic DWV pipe? - ANSWERS-35'



What is ABS typically used for? - ANSWERS-Sanitary drainage, vent,
aboveground and underground storm water drainage.



What is PVC used for? - ANSWERS-Sanitary drainage, vent, aboveground and
underground storm drainage, water mains, and water service lines. COLD
WATER ONLY



What is cpvc used for? - ANSWERS-Typically used for HW and CW
distribution, Fire sprinkler pipes, water distribution