Plumbing Part 2

通報

問題一覧

Name the value

Safety valve

Operates by the compression of a soft packing upon a metal sheet

Compression cock

Name the basic types of faucets/bibbs of #1

Compression cock

Name the basic types of faucets/bibbs of #2

Key cock

Name the basic types of faucets/bibbs of #3

Ball faucet

What plumbing issue is described as a knocking in the pipes caused when faucets on lower levels are shut off abruptly, leading to a sudden change in pressure, where the force of decelerating water causes pipes to shake and rattle? This can be prevented by using extension pieces as air cushions.

Water hammer

What is the term for the flowing back of used, contaminated, or polluted water from a plumbing fixture or vessel into a water supply pipe, caused by negative pressure in the pipe?

Back siphonage

What term refers to the flow of water or other liquids, mixtures, or substances into the distributing pipes of a potable water supply, reaching a tank, plumbing fixture, or device up to the flood level rim of the receptacle?

Back flow

What phenomenon occurs when changes in temperature cause pipes to expand and contract, potentially damaging the pipe and the surrounding concrete wall?

Expansion and Contraction

What is the term for the loss of water pressure caused by friction when liquid flows through a pipe and makes contact with the pipe enclosure, where the effect is greater with longer pipes, smaller diameters, and more fittings?

Friction Head Loss

What system involves obtaining water through a large intake installed on a lake basin, which is extended into deep water?

Direct pressure distribution

What are the main components of a direct pressure distribution system?

Water basin, receiving well, filtration plant

What system involves taking water from a drilled well or underground source (such as in deep well construction) and uses individual special mechanical equipment to distribute the water?

Indirect pressure distribution

What do you call the pipe that runs from the street water main or another water source to the building being served?

Service pipe

Device used to measure in liters or gallons the amount of water that passes through the water service

Water meter

What is the principal water distribution pipe that runs from the water meter, from which various branches and risers to the fixtures are taken?

Horizontal supply main

What do you call a water supply pipe that is extended vertically to one full story or more to convey water into pipe branches or plumbing fixtures?

Riser

What is the water supply pipe located between the fixture supply pipe and the water distributing pipe?

Fixture branch

What components are used for control, isolation, and repair of the water distribution system?

Controls and Valves

What system provides water from city water companies using normal pressure from the public water main?

Upfeed system

What system is used when the pressure from the city water supply is not strong enough, and uses compressed air to raise and push water into the system?

Air pressure system (pneumatic)

What system involves pumping water into a large tank on top of a building, then distributing it to fixtures by means of gravity?

Down feed/Overhead feed /Gravity system

The upfeed system eliminates the extra cost of pumps and tanks. Is this an advantage or disadvantage?

Advantage

In the upfeed system, the pressure from the water main is inadequate to supply tall buildings. Is this an advantage or disadvantage?

Dusadvantage

In the upfeed system, water supply is affected during peak load hours. Is this an advantage or disadvantage?

Disadvantage

In the air pressure system, water supply is affected by the loss of pressure inside the tank in the event of a power interruption. Is this an advantage or disadvantage?

Disadvantage

The air pressure system is compact with a pumping unit, sanitary due to the airtight water chamber, and economic with smaller pipe diameters, leading to less initial construction and maintenance costs. It also has oxygen in the compressed air that serves as a purifying agent, and is adaptable to serve zones about 10 stories intervals. These are all advantages or disadvantages?

Advantage

In the overhead feed system, water is not affected by peak load hours or by power interruptions. Additionally, the time needed to replace broken parts does not affect water supply. Are these considered advantages or disadvantages?

Advantage

In the overhead feed system, water is subjected to contamination, it has high maintenance, and occupies valuable space. It also requires a stronger foundation and structure to support the additional load of the tank and water. Are these considered advantages or disadvantages?

Disadvantage

Which system uses a network of pipes for constant hot water circulation without a pump, allowing immediate access at fixtures, minimizes water waste, and uses larger pipes at the top, tapering down to smaller ones on lower floors?

Upfeed and gravity return system

Which system uses gravity and thermal expansion to circulate hot water from the top of the plumbing system, with larger pipes at the bottom and smaller ones at the top, also known as the overhead feed and gravity return system?

Down feed and gravity return system

Which system is used for more efficient circulation of hot water to the upper floor levels of multi-story buildings?

Pump circuit system

How many gallons of hot water consumption for office buildings (gal./hr, pers/hr)

4 to 5

How many gallons of hot water consumption for school buildings (gal./hr, pers/hr)

2 to 3

How many gallons of hot water consumption for apartment buildings (gal./hr, pers/hr)

How many gallons of hot water consumption for hotels buildings (gal./hr, pers/hr)

8 to 10

How many gallons of hot water consumption for factories (gal./hr, pers/hr)

4 to 6

How many gallons of hot water consumption for residential (gal./hr, pers/hr)

What is the average working load percentage of hot water systems for schools, offices, and residential types?

25%

What is the average working load percentage of hot water systems for schools, offices, and residential types?

35%

What is the average working load percentage of hot water systems for hotels and restaurants?

50%

What system is used where water is confined within a system at low temperature for heating?

Hot water space heating system

What system is not an enclosed system and operates at much higher temperatures?

Hot water supply system

What provides protection for the hot water tank used in a hot water space heating system?

System relief valve

What provides protection for the hot water tank used in a hot water supply system?

Temperature and pressure relief

Which tank is used for supplying water for fire protection systems, where water is pumped up to the tank and preserved for emergency use, and the tank is not connected to the water distribution line of the building?

Elevated water tank

For supplying water for protection systems, a cistern is usually provided from the main water line, but can sometimes use collected rainwater. What is this type of water storage system called?

Underground water reservoir

Which system is no longer used in new buildings, operates when the pipe is connected to the exterior of the building, and has a maximum height of 1200 mm?

Dry standpipe system

What is a pipe installed in a building that is not part of the water supply or waste disposal system, but is primarily used for water conveyance in case of fire?

Stand pipe

Which system works as a piping network that is directly connected to the main water line, connects to all levels of a building (with at least one standpipe on each level), and ensures all portions of the building are within 6 meters of a nozzle attached to a 23-meter long hose? The minimum diameter is 51 mm for those less than 15 meters from the fire service connection and 63 mm for those more than 15 meters from the fire service connection

Wet standpipe system

Which system works as a piping network directly connected to the main water line, connects to all levels of a building (with at least one standpipe on each level), and includes a Siamese connection located outside the building for additional water supply (connecting to a fire truck hose)?

Wet standpipe system with Siamese connection

TRUE OR FALSE: in the interest of safety (to avoid contamination),the cross contamination between the fire protection line and the water line should be equipped with the gate valve and to check valve

True

Which is the most expensive fire protection system but also the most effective, and is now required by many cities, localities, and even fire insurance companies to be integrated into new buildings?

Sprinkler system

Which type of sprinkler system has its lines constantly filled with water, allowing for immediate discharge when activated?

Automatic wet system

Which type of sprinkler system uses valves and sensors that trigger water to fill up the lines at the slightest hint of fire?

Automatic dry system

What is the standard spacing of sprinkler heads for light hazard occupancy?

20 m²

What is the standard spacing of sprinkler heads for extra hazard occupancy?

10 m²

Which type of sprinkler head is used above piping when the piping is exposed, offering better protection against damage?

Upright sprinkler head

Which type of sprinkler head is designed to protect through a finished ceiling when the piping is concealed?

Pendant sprinkler head

What are the special installation and requirements for fire protection in plumbing system

At least one fire department connection on each frontage, a master alarm system for all water supplies other than fire department connections, sloping water floors with drains or scuppers to carry away water

What are receptacles used to provide, receive, and discharge water, liquid, and water-carried waste into a drainage system with which they are connected?

Plumbing fixtures

What is the classification of plumbing fixtures such as water closets, urinals, and slop sinks?

Soil

What is the classification of plumbing fixtures such as kitchen sinks, laundry tubs, and bar sinks?

Scullery

What is the plumbing fixture classification for lavatories, bathtubs, shower baths, bidets, jacuzzis, foot/sitz tubs, shower receptors, floor drains, and shower compartments?

Bathing

What is the minimum setting of water closet center to side wall

0.375 m

What is the minimum setting of water closet from center to water closet center

0.75 m

What are the types of water closet according to types of flashing

Flush tank water closet and Direct flush valve water closet

What are type water closet according to flash tank types

Integral flush tank, Close-coupled flush tank, Low flush tank, High flush tank

What are the types of water closet according to mounting

Floor-mounted, Wall-hung

Which inexpensive type of water closet uses a simple wash down flush, has little standing water, a front bulge, and is noisy but less efficient?

Wash down

Which type of water closet uses a siphon action created in the trapway, with the trap located at the front, hence the term "reverse"?

Reverse trap

Which toilet type has a large trapway, is quiet, and holds more standing water?

Siphon jet

Which toilet type is quiet, efficient, and flushes with a whirlpool motion?

Siphon vortex

Which flushing system uses flushing action directly from a flush valve connected into the bowl?

Direct flush valve

What are the two types of water closet based on design and usage?

Washout and Squat Type

Minimum water closet in dwelling or arpartment for family

Minimum water closet requirement for elementary schools with 1-20 persons

Minimum water closet requirement for elementary schools with 21-50 persons

Minimum water closet requirement for elementary schools for additional per 50 person

Minimum water closet requirement for assembly places (Theaters and Auditoriums - for public use) for 1-100 males

Minimum water closet requirement for assembly places (Theaters and Auditoriums - for public use) for 101-200 males

Minimum water closet requirement for assembly places (Theaters and Auditoriums - for public use) for 201-400 males

Minimum water closet requirement for assembly places (Theaters and Auditoriums - for public use) for 1-50 females

Minimum water closet requirement for assembly places (Theaters and Auditoriums - for public use) for 51-100 females

Minimum water closet requirement for assembly places (Theaters and Auditoriums - for public use) for 101-200 females

Minimum water closet requirement for assembly places (Theaters and Auditoriums - for public use) for additional per 500 males over 400

Minimum water closet requirement for assembly places (Theaters and Auditoriums - for public use) for additional per 300 males over 400

Minimum water closet requirement for dormitory for 10 males

Minimum water closet requirement for dormitory for 8 females

Minimum water closet requirement for dormitory for additional 25 males, 20 females

Minimum water closet requirement for Industrial for 1-10 persons

Minimum water closet requirement for Industrial for 11-25 persons

Minimum water closet requirement for Industrial for 26-50 persons

Minimum water closet requirement for Industrial for 51-75 persons

Minimum water closet requirement for Industrial for 76-100 persons

Minimum water closet requirement for Industrial for additional 30 person in excess of 100

Which is the most common type of urinal that is mounted to the wall and equipped with direct flush valves and integral or exposed traps?

Wall hung

Which is the most expensive type of lavatory, that generally stresses pedestals and uses direct flush valves and integral traps?

Pedestal

100

The market version comes in the form of a tub. Local versions can come in different forms, usually with a perforated water-filled pipe, with trains at the floor level and traps underground.

through

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