Plumbing - Session 6 Part 2
The ballcock (or fill valve) must be at least 1 inch above the rim of the bowl to prevent backflow — basically, to stop dirty water from siphoning back into the clean water supply.
Floor drains installed in coin-operated laundries and in central washing facilities of multiple-family dwellings shall have:
A. No water supplied to the area.
B. Shall be winterized.
C. Shall be supplied with lint strainers.
D. Shall have sealed strainers.
Floor drains installed in coin-operated laundries and in central washing facilities of multiple-family dwellings shall have:
A. No water supplied to the area.
B. Shall be winterized.
C. Shall be supplied with lint strainers.
D. Shall have sealed strainers.
C. Shall be supplied with lint strainers.
Key Terms
Floor drains installed in coin-operated laundries and in central washing facilities of multiple-family dwellings shall have:
A. No water supplied to the area.
B. Shall be winterized.
C. Shall be supplied with lint strainers.
D. Shall have sealed strainers.
C. Shall be supplied with lint strainers.
When installing a food waste grinder it shall:
A. Not increase the drainage fixture unit load on the sanitary drainage system.
B. Increase the drainage fixture unit load by one drainage fixture unit
C. Increase the drainage fixture unit load by two drainage fixture units.
D. Increase the drainage fixture unit load by three drainage fixture units.
A. Not increase the drainage fixture unit load on the sanitary drainage system.
Domestic food waste grinders shall be connected to a drain of:
A. At least1.5 inches.
B. Not less than 2 inches.
C. Greater than 1inch.
D. Greater than 2 inch.
B. Not less than 2 inches.
All food waste grinder shall be provided with a supply of :
A. Tempered water.
B. Hot water.
C. Cold water.
D. Water temperature greater than 90* F.
C. Cold water.
The water supply to a garbage can washer shall be protected against backflow by an:
A. Air gap.
B. Backflow preventer.
C. A & B.
D. Check valve.
C. A & B.
Garbage can washer shall be:
A. Trapped separately.
B. Can use a common trap system.
C. Is illegal.
D. Shall be installed in special room.
A. Trapped separately.
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| Term | Definition |
|---|---|
| C. Shall be supplied with lint strainers. |
| A. Not increase the drainage fixture unit load on the sanitary drainage system. |
Domestic food waste grinders shall be connected to a drain of: A. At least1.5 inches. B. Not less than 2 inches. C. Greater than 1inch. D. Greater than 2 inch. | B. Not less than 2 inches. |
All food waste grinder shall be provided with a supply of : A. Tempered water. B. Hot water. C. Cold water. D. Water temperature greater than 90* F. | C. Cold water. |
The water supply to a garbage can washer shall be protected against backflow by an: A. Air gap. B. Backflow preventer. C. A & B. D. Check valve. | C. A & B. |
Garbage can washer shall be: A. Trapped separately. B. Can use a common trap system. C. Is illegal. D. Shall be installed in special room. | A. Trapped separately. |
| B. Removable basket or strainer to prevent the discharge of large particles into the drainage system. |
Lavatories designed to be used for group wash-up equipment; every ... of rim space shall be considered as one lavatory: A. 12". B. 18". C. 20". D. 25". | C. 20". |
Each compartment of a lavatory tray shall be provided with a waste outlet a minimum of ... inches in diameter and a ... or ... to restrict the clean opening of the wast outlet: A. 1.5 , strainer, crossbar. B. 2", strainer, crossbar. C. 2-1/2", strainer, crossbar. D. 3", strainer, crossbar. | A. 1.5 , strainer, crossbar. |
| C. Conform to ANSI Z124.3 and CSA B45.5. |
Lavatories shall have waste outlets not less than: A. 1.25 inches in diameter. B. 1.5 inches in diameter. C. 2 inches in diameter. D. 2-1/2 inches in diameter. | A. 1.25 inches in diameter. |
Every water supply valve from the shower to the shower head outlet, whether exposed or not shall be: A. Attached to the piping system. B. Attached to the structure. C. Covered with1/2 inch insulation. D. Covered with1/4 inch insulation. | B. Attached to the structure. |
Waste outlets serving shower shall be at least ... inches in diameter and for other than waste outlets in bath tubs, shall have removable strainers not less than ... inches in diameter with strainer openings not less than ... inch in minimum dimension: A. 2, 3, 0.50. B. 2, 3, 0.75. C. 2, 3, 1.00. D. 2, 3, 0.25. | D. 2, 3, 0.25. |
Were each shower space is not provided with an individual waste outlet; A. An individual waste outlet shall be provided. B. The waste outlet shall be located and the floor pitched so that waste from one shower does not flow over the floor area serving another shower. C. The waste outlet shall be located and the floor pitched so that waste from one shower shall flow over the floor area serving another shower. D. Waste outlets need not be fastened to the waste pipe. | B. The waste outlet shall be located and the floor pitched so that waste from one shower does not flow over the floor area serving another shower. |
All shower compartments shall not be less than ... in minimum dimension measured from the finished interior dimension of the compartment, exclusive of fixture valves, shower heads, soap dishes, and safety grab bars: A. 24". B. 30". C. 36". D. 42". | B. 30". |
All shower compartments shall have a minimum of ... of interior cross-sectional area: A. 300 square inches. B. 600 square inches. C. 900 square inches. D. 12000 square inches. | C. 900 square inches. |
| D. 70 inches above the shower drain outlet. |
The wall area above built-in tubs with installed shower heads and in shower compartments shall be constructed of smooth, noncorrosive and nonabsorbent waterproof materials to a height not less than: A. 8 feet above the room floor level. B. 7 feet above the room floor level. C. 6 feet above the room floor level. D. 5 feet above the room floor level. | C. 6 feet above the room floor level. |
The wall area above built-in tubs with installed shower heads and in shower compartments shall be constructed of smooth, noncorrosive and nonabsorbent waterproof materials to a height not less than ... inches ... mm where measured from the compartment floor at the drain: A. 10 inches (2540mm). B. 90 inches (2286). C. 80 inches (2032). D. 70 inches (1778). | D. 70 inches (1778). |
Shower floors or receptors, the surface shall be constructed of: A. Impervious materials. B. Non-corrosive materials. C. Non-absorbent, waterproof materials. D. A, B & C. | D. A, B & C. |
Sinks shall be provided with waste outlets a minimum of: A. 1.5 inches in diameter. B. 2 inches in diameter. C. 2.5 inches in diameter. D. 3 inches in diameter. | B. 2 inches in diameter. |
Sink waste outlet shall provide a ... or ... to restrict the clear opening of the waste outlet: A. Strainer. B. Crossbar. C. A & B. D. Plate or cap, | C. A & B. |
In each bathroom or toilet room, urinals shall not be substituted for more than ... percent of the required water closet: A. 25. B. 30. C. 40. D. 50. | D. 50. |
Waterproof material with a smooth, readily cleanable, nonabsorbent material in the surrounding material, shall be used for the wall and floor space to a point .. feet in front of a urinal lip and ... feet above the floor and at least ... feet one each side of urinal: A. 2,4,2. B. 4,2,2. C. 2,2,4. D. 4,4,2. | A. 2,4,2. |
Water closet bowls for public or employee toilet facilities shall be: A. 16 inches off the finished floor. B. 12 inches roughing. C. Elongated type. D. Regular approved type, not elongated. | C. Elongated type. |
Water closet seats shall be equipped with seas of: A. Smooth material. B. Non-absorbent material. C. A & B. D. Hard material. | C. A & B. |
All seats of water closets provided for public or employee toilet facilities shall be of the: A. Same material as the fixture. B. Hinged open-front type. C. Hinged closed-front type. D. Hard closed-front type. | B. Hinged open-front type. |
| D. A,B & C. |
B. Five. | A. Six. |
| D. A & B. |
The drain for whirlpool bathtub, the pump drain and circulation piping shall be sloped to drain the water in the volute and circulation piping when the whirlpool bathtub is: A. Empty. B. Full. C. 3/4 full. D. 1/2 full. | A. Empty. |
Fixture designed for therapy. special cleansing or disposal of waste materials, combination of such purposes, or any other special purposes, shall be of smooth, impervious, corrosion-resistant materials and, were subjected to temperature in access of ... shall be capable of withstanding without damage, higher temperatures: A. 140*F. B. 160*F. C. 170*F. D. 180*F. | D. 180*F. |
A clinical sink (bedpan hopper) shall have a flushing and cleansing characteristics of a: A. Urinal. B. Water closet. C. Whirlpool bathtub. D. Bidet. | B. Water closet. |
| D. A & B. |
A clinic sink (bedpan hopper) served a soiled utility room shall not be considered as a substructure for, or be utilized as: A. Place to drain fecal matter. B. Service sink. C. Place to drain urine. D. None of the above. | B. Service sink. |
Machines for manufacturing ice, or any device for the handling or storage of ice, shall not be located in a: A. Soiled utility room. B. Diet kitchen. C. Clean utility room. D. Floor pantry. | A. Soiled utility room. |
Steam supplies to sterilizers, including those connected by pipes from overhead mains or branches, shall be drained to prevent any moister from teaching the sterilizer. The condensate drainage from the steam supply shall be discharged by: A. Gravity pump. B. Atmospheric vacuum. C. Gravity. D. Pressure. | C. Gravity. |
Steam condensate returns from sterilizers shall be a: A. Gravity return system. B. Vacuum return system. C. Pressure return system. D. Gravity pump system. | A. Gravity return system. |
| D. A, B & C. |
Shower tub and shower-tub combination valve and master thermostatic mixing valves shall be equipped with a means to limit the maximum setting of the valve, and can be field adjusted to a maximum setting of the valve to: A. 110*F. B. 115*F. C. 120*F. D. 125*F. | C. 120*F. |
Each water closet, urinal, clinical sink and any plumbing fixture that depends on trap siphonage to discharge the fixture contents to the drainage system shall be provided with a: A. Flushometer valve. B. Flushometer tank. C. Flush tank. D. A B & C. | D. A B & C. |
| A. Shall not serve more than one fixture. |
| B. Lower than the minimum required for normal operation |
| A. Automatically refilled after each valve flushing cycle. |
| D. A, B & C. |
All flush tanks shall be equipped with antisiphon fill valve conforming to ASSE 1002 or CSA B125. The fill valve backflow preventer shall be located at least ... above the full opening of the overflow pipe: A. 3/4 -inch. B. 1-inch. C. 1-1/4-inch. D. 1-1/2 inch. | B. 1-inch. |
Flush tanks shall be provided with overflows discharging to the water closet or urinal connected thereto and shall be sized to prevent flooding the tank at the maximum rate at which the tank are supplied with water according to the manufacturer's design condition the opening of the overflow pipe shall be located ,,, level rim of water closet or urinal or above the secondary overflow in the flush tank: A. Below the flood. B. Above the flood. C. At the same. D. B & C. | B. Above the flood. |
Sheet copper utilized for flush tank linings shall conform to ASTM B152 and shall not weight less than: A. 12 ounce per square foot. B. 10 ounce per square foot. C. 8 ounce per square foot. D. 6 ounce per square foot. | B. 10 ounce per square foot |
| B. Nonferrous material. |
Where a combination potable water heating and space heating system requires water for space heating at temperature higher than 140*F , a master thermostatic valve complying with ASSE 1-17 shall be provided to limit the water supplied to the potable hot water distribution system to a temperature of: A. 140*F or less. B. 160*F or less. C. 160*F or more. D. 140*F or more. | A. 140*F or less |
| B. At the bottom. |
Water heaters and storage tanks shall be located and connected so as to provide access for: A. Observation. B. Maintenance. C. Servicing and replacement. D. A, B & C. | D. A, B & C. |
All water heaters shall be: A. First-party certified. B. Second-party certified. C. Third-party certified. D. None of the above. | C. Third-party certified. |
the temperature of water from tankless heaters shall be a maximum of (when intended for domestic uses): A. 212*F. B. 180*F. C. 160*F. D. 140*F. | D. 140*F. |
| A. Allowable working pressure clearly and indelibly stamped in the metal or market on a plate welded thereto. |
All hot water supply systems shall be equipped with automatic temperature controls capable of adjustments from ... acceptable temperature setting for the intended temperature operating range. A. The lowest. B. The highest. C. The lowest to the highest. D. A. B & C. | C. The lowest to the highest. |
Water heaters shall be installed in accordance with: A. Fire department of the city of New York. B. Department of Environmental Protection, NYC. C. Manufacturers' installation instructions. D. Department of housing administration and Rent. | C. Manufacturers' installation instructions. |
Oil-fired water heater shall conform to the requirements of: A. Plumbing code, NYC., B. Manufacturer's code, NYC. C. Mechanical code, NYC. D. A & C. | D. A & C. |
Electric water heaters shall conform to the requirements of the plumbing code and provision of: A. NYC electric code. B. NYS electric code. C. BOCA. D. National electric code. | A. NYC electric code. |
Gas-fired heaters shall conform to the requirements of the: A. Department of labor. B. Utility company. C. NYC fuel gas code. D. NYS fuel gas code. | C. NYC fuel gas code |
Water hearers using solid, liquid or gas fuel shall not be installed in a room containing air-handling machinery when such room is used: A. For.storage. B. As a plenum. C. As a basement area. D. As a cellar area. | B. As a plenum. |
The only type water heaters that may be installed in attics is: A. Solid fuel water heaters. B. Liquid fuel water heaters. C. Gas fuel water heaters. D. Electric water heaters. | D. Electric water heaters. |
An attic containing a water heater shall be provided with an opening ... and ... large enough to allow ... of the water heater. A. Unobstructed, passageway, removal. B. Obstructed, passageway, removal. C.Removal, unobstructed, passageway. D. Unobstructed, walkway, removal. | A. Unobstructed, passageway, removal. |
The passageway for water heaters installed in attics shall be provided with a passageway not less than ... inches high and ...inches wide and not more than ... feet in length when measured along the centerline of the passageway from the opening to the water heater. A. 30, 22. 20. B. 36, 24, 22. C. 42, 24, 24. D. 44, 30, 30. | A. 30, 22. 20. |
The passageway for water heaters shall have a continuous solid flooring not less then: A. 18 inches wide. B. 24 inches wide. C. 30 inches wide. D. 36 inches wide. | B. 24 inches wide. |
At the front side of the water heater in stalled in attics a level service space at least, is required: A. 18 inches deep, and 18 inches wide. B. 24 inches deep, and 24 inches wide. C. 30 inches deep, and 30 inches wide. D. 36 inches deep, and 36 inches wide. | C. 30 inches deep, and 30 inches wide. |
Were such dimensions are large enough to allow removal the water heater from an attic space the clear access opening dimensions shall be a minimum of: A. 20 inches by 30 inches. B. 23 inches by 30 inches. C. 30 inches by 30 inches. D. 36 inches by 30 inches. | A. 20 inches by 30 inches. |
Where earthquake loads are applicable in accordance with the New York City Building Code, water heater supports shall be designed and installed for: A. Atmospheric forces. B. Seismic forces. C. Galactic forces. D. Dark forces. | B. Seismic forces. |
The cold water line from main cold water supply line to each hot water storage tank or water heater shall be provided with a … , located near the equipment and serving only the hot water storage tank or water heater. The … shall not interfere or cause a disruption of the cold water supply to the remainder of the cold water system. A. Check valve. B. Balancing valve. C. Valve. D. Temperature and pressure relief valve. | C. Valve. |
| D. A & B. |
| B. Vacuum relief valve installed. |