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WorksheetsDrainage Chapter 4 Review
Total questions: 15
Worksheet time: 8mins
A(n) ___ is a device that retains a quantity of liquid each time a plumbing fixture is used, thus producing a measured volume of liquid.
water seal trap
Trap seal
Water vent
Integral trap
The maximum length of an indirect waste pipe is 5' (1.5 m).
False
True
A(n) ___ is the external water seal trap that is approved by all plumbing codes.
Bell trap
Drum trap
P-trap
S-trap
The outlet of a trap directs wastewater flow into the dip of the trap.
False
True
Maybe
The maximum trap arm length is different for each size of pipe and differs among codes
True
Maybe
False
The (a) is the lower part of the 90° radius bend and is also the top of the trap seal.
Pressure pushing against the outlet of the trap from inside the drainage system is called ___.
siphonage
trap seal
backpressure
aspiration
The 24" (610 mm) minimum standpipe is the height required to eliminate the possibility of pumped waste (a) the standpipe.
A lavatory is prone to self-siphonage to a greater degree than any other fixture.
True
False
A ___ is a device or system with a feeder line that releases a small amount of water to a trap when it runs dry to maintain the trap seal.
capillary
trap primer
crown vented trap
bottle trap
Direct access without the necessity of removing any panel, door, or similar obstruction is called ___.
readily available
accessible
readily accessible
available
A ___ is a sink designed primarily to receive wastes from bedpans and has a flush rim, an integral trap with a visible trap seal, and the same flushing and cleansing characteristics as a water closet.
Sink battery
Urinal
Sink drain
Clinical sink
Trap seal loss may allow (a) to enter the building, exposing the occupants to the dangerous hazards.
The (a) that accepts the flow of wastewater also must be vented to allow air flow into the stack to prevent negative pressures.
A trap arm will penetrate through a wall at the proper height below the fixture with a random length of pipe called a(n) (a) .
