Huge heavy tractors with special compacting wheels press down the refuse Then

Huge heavy tractors with special compacting wheels

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Huge, heavy tractors with special compacting wheels press down the refuse. Then the refuse is covered with earth hauled in from elsewhere. 11. Collection of human wastes is done by elaborate systems to carry most liquid sewage to WATER TREATMENT PLANTS , where the sewage undergoes a series of treatment steps to remove polluting materials, biological and chemical contaminants that can harm human health or ecological systems. The first stage is the trapping or screening of coarse suspended matter into a grit chamber . Then the use of aerobic microorganisms to break down the organic matter left in the sewage called the biological oxidation . Then the third phase, chemical treatments used to remove undesirable constituents that remain. What results is drinking quality water. 12. BIDET. A fixture that appears like a water closet, since a person sits down on it. But it is designed as a combination lavatory which can plug the drain and collect hot & cold water, with an inverted water sprayer to clear the most delicate and well-guarded parts of the body. F. MISCELLANEOUS QUESTIONS 1. What determines the size of a leaching field? PERCOLATION TEST 2. What is an important concern in private water supply? HARDNESS. 3. What part of water supply design is affected by building height? STATIC HEAD
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4. Statements: a. Correct *Dry pipe sprinkler systems are more efficient than wet pipe systems. *The hazard classification does not necessarily affect sprinkler layout. b. Incorrect *Siamese connections serve both sprinklers and standpipes *Standpipes must be located within stairways or vestibules of smoke- proofed enclosures. *Standpipes are required in buildings four or more stories high or those exceeding 150 feet. 5. The pressure in a city water main is (0.39273 MPa). If the pressure loss through piping, fittings, and the water meter has been calculated as 231 psi (o.15847 MPa) and the highest fixture requires 12 psi (0.08268 MPa) to operate, what is the maximum height the fixture can be above the water main? 50 FEET (15M) 6. You have been retained by a client to design a house in a suburban location. The nearest water main is one block away (about 1000M) and the city has no plans to extend the line in the near future. City and county regulations do permit the drilling of wells. What should you recommend you client regarding water supply? ESTIMATE THE COST OF EXTENDING THE MUNICIPAL LINE, SINCE THE WATER QUALITY IS KNOWN AND IT WOULD ENSURE A LONG-TERM SUPPLY. CONSULT WITH NEARBY PROPERTY OWNERS WHO PLAN TO BUILD IN THE AREA TO SEE IF THEY WOULD BE WILLING TO SHARE THE COST OF EXTENDING THE LINE. 7. Which statements about drainage are correct? a. Correct *Vents help prevent the drainage of water from traps *The house drain cannot also be called the building sewer *Cleanouts are always a necessary part of a drainage system b. Incorrect *Drains should always slope at a minimum of 1/8 inch per foot (.0099 per meter) or 9.9mm/meter. [0.99%] 8. Water hammer most often occurs when: WATER SUDDENLY STOPS WHEN FLOW IS TURNED OFF.
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