WorksheetsPlumbing Systems Quiz
Total questions: 50
Worksheet time: 25mins
What is an Air Gap in a water supply system?
A valve preventing backflow
An unobstructed vertical distance through the free atmosphere
A pipe connecting fixtures
A drainage opening
What is Backflow?
Water moving through a filter
Flow of water into distributing pipes from its intended source
Flow of water into distributing pipes from an unintended source
The discharge of sewage
Back Siphonage refers to:
Negative pressure in a water supply pipe
High pressure in a water supply pipe
Opening of a fixture trap
Blockage in the main sewer
A Blind Flange is used to:
Connect two fixtures
Close the end of a pipe
Allow controlled discharge of water
Prevent back pressure
A Blow off is:
A vent for air circulation
A controlled outlet on a pipeline to discharge water
A branch pipe
A waste trap
The Branch Interval corresponds to:
A storey height in a building
The slope of a horizontal pipe
The trap seal depth
The diameter of a vent
A Circuit Vent serves:
Only one trap
Two or more traps from the front of the last fixture
The sewer line only
The storm drain
Cross Connection means:
Slope of a horizontal pipe
A connection between potable and non-potable water systems
A valve used for flushing
A vent connecting stacks
Diameter of a brass pipe refers to:
Outside diameter (OD)
Inside diameter (ID)
Both OD and ID
Circumference of the pipe
Drainage System includes:
Only potable water pipes
Only rainwater pipes
All pipes conveying sewage, rainwater, or liquid waste
Only vent pipes
Flood Level refers to:
Tank water level for flushing
Lowest portion of the trap
Top of the vent stack
Bottom of a sump
A Flushometer Valve operates by:
Direct water pressure
Gravity pressure
Air suction
Cross connection
The Invert of a pipe is:
The slope of the pipe
The lowest portion of the inside of a pipe or conduit
The vertical section of a stack
The trap seal
Main Sewer is controlled by:
Public authority
Private contractor
Property owner
Engineer
A Relief Vent provides:
Water circulation
Air circulation between drainage and vent systems
Controlled discharge of sewage
Backflow prevention
Sanitary Sewage means:
Industrial waste
Human excrement and liquid household waste
Stormwater only
Chemical waste
A Sump is defined as:
A pit or receptacle at a low point where liquid waste is drained
A sewer main
A vent opening
A backflow device
Trap Seal is:
Maximum vertical depth of liquid that a trap retains
Slope of the pipe
Diameter of the trap
Top of vent pipe
Vertical Pipe means:
Pipe installed vertically or less than 45° from vertical
Pipe installed horizontally
Pipe connected to main sewer
Pipe used in drainage only
Waste Pipe conveys:
Sewage only
Stormwater only
Liquid waste from fixtures free of fecal matter
Vent gases
What is a Battery of Fixtures?
Two or more adjacent fixtures discharging into a common branch
A vent stack extension
A closed pipe end
A controlled water valve
What is a Bib?
A drain opening
A synonym for faucet or cock
A vent extension
A trap seal
What is a Branch in piping?
Main riser only
Any part of the system other than the main riser
A vent pipe
A sump connection
What is a Branch Vent?
Connects fixtures directly to sewer
Connects one or more vents with a vent stack
Provides air to sump
Prevents blowback
What is Calking?
Plugging an opening with oakum or lead
Flushing a water closet
Slope of a horizontal pipe
A type of valve
What is a Continuous Vent?
A vertical vent continuation of a drain
A branch connection
A secondary sewer
A sump opening
Combination Fixture means:
Two or more compartments with one trap
One pipe connected to sump
Trap venting system
Waste pipe with vent
What is a Common Vent?
Vent shared by two fixtures connected to a single trap
Vent pipe only for main stack
Sewer vent
Battery vent
What is a Dead End?
An extended pipe closed at one end
A slope of pipe
A vent opening
A valve connection
What is Developed Length?
Length along the center of pipe and fittings
Diameter of the pipe
Height of vent stack
Trap seal
What is a Fixture Branch?
A vent line from the main stack
A drain connecting several fixtures to a stack
A backflow preventer
A sump opening
What is a Fixture Drain?
Outlet pipe from a trap to another part of the drainage system
The vent connection
The slope of a horizontal sewer
The main riser pipe
What is a Fixture Unit?
A measure based on the rate of discharge, duration, and frequency of use of a fixture
The weight of a plumbing fixture
A combination of fixtures
A sump connection
What is a Flush Tank?
Tank for storage of potable water
Tank for flushing water closets and urinals
Reservoir for stormwater
Trap seal container
What is a Gate Valve?
Valve that completely stops the flow with a flat gate
Valve that controls pressure only
Valve used for backflow prevention
Valve for vent stacks
What is a Globe Valve?
Valve with a disk seating against a spherical surface
Valve with flat gates
Valve for relief vent
Valve only for sump pumps
What is a House Drain?
Drain connecting fixtures to vent
Lowest horizontal piping of a system inside a building
Drain used for stormwater
Trap vent pipe
What is a House Sewer?
Drain from building to public sewer or disposal system
Vent stack for plumbing system
House drain vent
Sump connection only
What is a Leader?
Pipe conducting rainwater from roof to storm drain
Main water riser
Fixture branch
Vent connection
What is a Lateral Sewer?
Branch sewer that discharges into a main sewer
Pipe connecting two traps
Drain from fixtures to vent
Stormwater leader
What is a Main?
Principal pipe in a supply, drainage, or sewer system
A small branch vent
A sump opening
Fixture connection pipe
What is a Mixing Valve?
Valve that mixes water at different temperatures
Valve that prevents blowoff
Valve only for stormwater
Valve for vent stacks
What is a Non-Return Valve?
Valve that allows flow in only one direction
Valve that mixes hot and cold water
Valve used for air venting
Valve that closes dead ends
What is a Plumbing System?
All piping and fixtures within a building for water supply and waste disposal
Only the drainage network
Only the water supply pipes
Only the vent stack
What is a Potable Water supply?
Water suitable for drinking and domestic purposes
Water for industrial use only
Stormwater for flushing
Sewage treated water
What is a Septic Tank?
Watertight tank receiving sewage for primary treatment
Ventilation chamber
Water storage reservoir
Backflow preventer
What is a Soil Pipe?
Pipe that conveys discharge with fecal matter
Pipe for rainwater only
Pipe for vent gases
Pipe for sump water
What is a Stack?
Vertical main pipe for soil, waste, or vent
Horizontal branch
Sump drainage pipe
Fixture trap outlet
What is a Trap?
A fitting with a liquid seal preventing sewer gas backflow
Pipe connected to sump
Vent extension
Valve for back pressure
What is a Vent Stack?
Vertical vent pipe installed primarily for providing air circulation to drainage system
A stack carrying sewage
A sump overflow pipe
A relief valve connection
