General Plumbing By E. Troise. Flashcards
- What is backflow?
The flow of water or other liquids, mixturesbor substances, under positive or reduced pressure in the distribution pipes of a potable water supply from any source other than its intended source.
- What is backflow preventer?
A device or means designed to prevent backflow or back-siphonage. Most commonly categorized as air gap, reduced pressure principalndevice, double check balve assembly, pressure vacuum breaker, atmospheric vacuum breaker, hose bibb vacuum breaker, resodential dual check, dual check with intermediate atmospheric vent, and barometric loop.
- What is air gap?
A physical separation sufficient to prevent backflow between the free-flowing discharge end of the potanle water system and any other system. Physically defined as a distance equal to twice the diameter of the supply side pipe diameter but never less than one inch.
- What is atmospheric vacuum breaker?
A device which prevents back-siphonage by opening an atmospheric bent when there is either a negative pressure or sub- atmospheric pressure in a water system.
- What is barometric loop?
A fabricatedbpiping arrangement rising atnleast thirty-five (35) feet at its topmost point above the highestbfixture it supplies. It is utilized in water supply systems to protect against back-siphonage.
- Other name foe common vent?
A. Dual vent.
B. Unit vent.
- What is aeeaway?
A space below grade, adjacent to a building, open to the outerbair and enclosed by walls.
- What is atrium?
A verticalopening or series of openings within a building connecting three or more floors, which may be covered at the top, and which is used for purposes other than an enclosed stairway, elevator hoistway or utility shaft.
- Balloon frame?
Light tinber construction in which the exterior wall consist of studs that are either continuous through floors or interrupted only by thickness of plates.
- What is bearing?
As applied to a wall or partition, shall mean supporting any bertical load in addition to its own weight.
- What is bulkhead?
An enclosed structure on or above the roof of any part of a building, enclosing a shaft, stairway, tank, or service equipment, or other space not designed or used for human occupancy.
- Whar is cabaret?
The term cabaret shall mean any room, place or space in which any musical entertainment, singing, dancing or other similar amussement is permitted in connection with an eating and drinking establishment.
- What is cableway?
A power operated system for moving loads in a generally horizontal direction in which the loads are conveyed on an overhead cable, track or carriage.
- Car door or gate?
As applied to an elevator, shall mean the sliding portion of the car that closes the opening giving access to the car.
- What is charging chute (incinerator)?
An enclosed vertical passage through which refuse is fed to an incinerator.
- What is construction class (group)?
The category in which a building or space is classified by the provisions of subchapter three of this chapter, based on the fire-resistance rating s of its construction elements.
- What is console lift?
A section of the floor area of a theater or auditorium that can be raised and lowered.
- What is cross-connection (fire extinguishing system)?
Piping between risers and siamese connections in a standpipe or sprinkler system.
- What is curb level?
The legally established level on the curb in front of a building, measured at the center of such front. When a building faces on more than one street, curb level shall mean the average of the legally established levels of the carbs at the center of each front.
- What is dead load?
Materials, equipment, constructions, or other elements of weight supported in, on, or by the building (including its own weight) that are intended to remain permanently in place.
- What is dumbwaiter?
A hoisting and lowering mechanism equipped with a car that moves in guides in a substantially bertical direction, the floor area of which does not exceed nine square feet, whose total inside height whether or not provided with fixed or movable shelves does not exceed four feet, the capacity of which does not exceed five hundred pounds, and that is used exclusively for carrying materials.
- What is grade beam?
A beam, at, near, or below grade, spanning between footings, pile caps or foundation piers, and supporting walls or other elements of a building.
- What is habitable room?
A residential room or space, having the minimum dimensions requiredbby section 27-751 of article six of subchapter twelve of this chapter in which the ordinary functions of domestic life are carried on, and which includes bedrooms, licing rooms, studies, recreation rooms, kitchens, dining rooms and other similar spaces, but does not include closets, halls, stairs, laundry rooms, or bathrooms.
- What is high rise?
A structure seventy-five feet or more in height.
- What is ponding?
The collection of rainwater.
- What is sidewalk elevator?
A freightbelevator that operates between a sidewalk or other area outside of a building and floor levels inside the building below such area which has no landing opening into the building at its upper limit of travel, and which is not used to carry automobiles.
