TEXAS MASTER PLUMBING EXAM 100 2026
PLUMBING CODE AND LICENSING
COMPREHENSIVE REVIEW AND STUDY GUIDE
◉ branch.
Answer: any part of the piping system other than a main, riser or
stack
◉ Branch vent.
Answer: A vent connecting one or more individual vents with a vent
stack or stack vent
◉ Building Drain.
Answer: is the lowest part of the drainage system which receives
waste from soil and waste pipes and connects to the building sewer
◉ Building sewer.
Answer: is drainage piping that conveys waste from the building
drain to the public sewer or disposal system
◉ Cleanout.
,Answer: Access opening in the drainage system used to remove
obstructions
◉ Combination fixture.
Answer: Two or three compartment sink drained by a continuous
waste connected to one trap
◉ Combination Waste and Vent system.
Answer: A horizontal wet venting system for sinks and floor drains
◉ Common Vent.
Answer: A single vent serving as the vent for two fixture drains
◉ critical level.
Answer: is an elevation mark on a vacuum breaker setting the
minimum elevation the device can be installed above the flood level
rim of a fixture
◉ cross-connection.
Answer: is an actual or potential tie between potable water and any
source of pollution or contamination
◉ Developed Length.
, Answer: A measurement of piping taken along the centerline of pipe
and fittings
◉ drain.
Answer: Any pipe that conveys waste water in the drainage system
◉ Indirect Waste.
Answer: Is waste pipe that drains through an air gap to the drainage
system
◉ Individual vent.
Answer: A pipe installed to vent one fixture trap. It may connect to
the vent system above the fixture or terminate in the open air.
◉ main.
Answer: Is the primary or principal pipe to which branches are
connected
◉ potable water.
Answer: Is water that is sufficiently free of impurities to meet public
health standards
◉ Rough in.
PLUMBING CODE AND LICENSING
COMPREHENSIVE REVIEW AND STUDY GUIDE
◉ branch.
Answer: any part of the piping system other than a main, riser or
stack
◉ Branch vent.
Answer: A vent connecting one or more individual vents with a vent
stack or stack vent
◉ Building Drain.
Answer: is the lowest part of the drainage system which receives
waste from soil and waste pipes and connects to the building sewer
◉ Building sewer.
Answer: is drainage piping that conveys waste from the building
drain to the public sewer or disposal system
◉ Cleanout.
,Answer: Access opening in the drainage system used to remove
obstructions
◉ Combination fixture.
Answer: Two or three compartment sink drained by a continuous
waste connected to one trap
◉ Combination Waste and Vent system.
Answer: A horizontal wet venting system for sinks and floor drains
◉ Common Vent.
Answer: A single vent serving as the vent for two fixture drains
◉ critical level.
Answer: is an elevation mark on a vacuum breaker setting the
minimum elevation the device can be installed above the flood level
rim of a fixture
◉ cross-connection.
Answer: is an actual or potential tie between potable water and any
source of pollution or contamination
◉ Developed Length.
, Answer: A measurement of piping taken along the centerline of pipe
and fittings
◉ drain.
Answer: Any pipe that conveys waste water in the drainage system
◉ Indirect Waste.
Answer: Is waste pipe that drains through an air gap to the drainage
system
◉ Individual vent.
Answer: A pipe installed to vent one fixture trap. It may connect to
the vent system above the fixture or terminate in the open air.
◉ main.
Answer: Is the primary or principal pipe to which branches are
connected
◉ potable water.
Answer: Is water that is sufficiently free of impurities to meet public
health standards
◉ Rough in.
