Pvc pipe - Study guides, Class notes & Summaries

What is the result if the neutral wire becomes open on a multiwire circuit having unequal loads? Select one: a. The load of higher resistance would overheat and probably be damaged. b. The load of lesser resistance would overheat and probably be damaged. c. No effect until one load is turned off or opens. d. No effect. The load of higher resistance would overheat and probably be damaged. Refer to Figure 128.202. ___ volts are applied across the water heater element. S...

COSC 325 Houston (plumbing) Questions and Answers SS - Correct Answer️️ -Sanitary Sewer ABS - Correct Answer️️ -Black plastic material VTR - Correct Answer️️ -vent through roof Primary Purpose of roof vent - Correct Answer️️ -Let air into system What division is plumbing - Correct Answer️️ -22 Invert Depth - Correct Answer️️ -elevation of the bottom inside of the pipe DW - Correct Answer️️ -Domestic Water CPVC (chlorinated polyvinyl chloride) - Correct Answer...

Seeding of BOD samples is necessary when samples - (All of the above) have a chlorine residual, have a previously been chlorinated, have been subjected to high temperatures, contain high or low pH industrial wastes When is blue-green algae the most dominant on a pond treatment system? - Summer A 30-inch diameter wastewater interceptor is observed to be flowing half-full at about two fps. The approximate volume of wastewater flowing through the pipe is 3.14x1.25 x 1.25 x 2 = 4.9 cfs x 449 =...

ASPE CPD Study Questions AH with complete solutions. Front - correct answer. Back What is the specific weight of water? - correct answer. 62.4 lbs per cubic foot What happens in a storm and sanitary system after it passes the water test? - correct answer. A smoke pressure test is recommended with a smoke pressure of 1 in wc to prove the system gas tight. Is an air test acceptable for a storm and sanitary system? - correct answer. Yes, if a water test is not poss...

NCCER Module 26204-17 Conduit bendingmust be included when calculating degrees between pull points Offsets and Saddles use the larger size for both conduits To make matching bends in different size conduit using a mechanical bender plugs and air pressure To prevent flattening when bending larger diameter PVC conduit, use 60 to 180-degrees of bend, depending on the type of bends A saddle bend is counted as 40 You are making a 20-inch offset with two 30 degree bends. The d...

The modern word for plumber is derived from the Latin word for - ANSWER-A person who works with lead LEED applies to all areas of the profession, except - ANSWER-Renovation Water that comes from laundry and bathtubs and reused in known as - ANSWER-Graywater Suggested national plumbing standards are called - ANSWER-Model codes You are offered a job by another contractor before you have fulfilled your current obligations. The professional response is to - ANSWER-Ask the contractor to w...

When Chlorine is combined with water what type of pipe should be used? A. Ductile iron B. Asbestos concrete C. PVC D. Carbon Steel - Answer- C. PVC A good settling sludge would consist of what type of protozoa? A. Rotifers and nematodes B. Amoebas and Flagellates C. Stalked ciliates and mastagoria D. Free swimmers and stalk ciliates - Answer- D. Free swimmers and stalk ciliates What is Phenolphylein used for in titration A. Oxidizer B. Indicator C. Acid reducer to lower pH...

PVC pipe correct answer: schedule 40, schedule 80, and (DWV) CPVC correct answer: rated for 180°F at 100 (psi) ABS pipe correct answer: used for building drain, waste and vents Polybutylene (PB) pipe correct answer: flexible tubing used for coldwater building supply and underground sprinkler systems Polyethylene (PE) pipe correct answer: for industrial piping systems, as well as for buried gas and water pipelines. Polyproylene (PP) pipe correct answer: used for industrial...

Texas Wastewater Class A Exam Questions and Answers 100% Score What is TCEQ doing to control "point source" pollution of the Texas waterways? *Permitting of domestic wastewater plants *Permitting of industrial wastewater plants Describe proper design of force main wastewater lines. Minimum two fps velocity with the smallest pump operating alone. Minimum four inch diameter pipe with 150 psi rating. What is Standard Dimension Ratio? Ratio of outside pipe diameter (OD) to wall thickness ...

CSLB Class B General Contractor's License - Building's Exam: Core Trades (Part 2) 3 inches - correct answer What is the minimum drain pipe size for the toilet in a residential home? B) Fire protection contractor - correct answer Who is licensed to install residential fire sprinkler systems? A) Plumbing contractor B) Fire protection contractor C) General Building contractor D) Pipeline contractor C) Clean the surface using a power tool - correct answer When brazing or soldering gas...