fixtures Flashcards
a plumbing ______ is defined as a receptacle or device that is supplied with water or that receives liquid borne wastes and discharges that waste into the drainage system
fixture
a ______ bowl is not a common design used to flush a water closer bowl
reverse siphon
a ____ water closet is referred to as a close coupled water closet
two piece
a _____ is the device used as a water supply valve in a water closet
ballcock
a flushometer tank is kept at a ____ psi pressure range
25 - 35
a _____ flush system uses a flushing mechanism that contains a diaphragm
flushometer valve
a ____ water closet is a type of water closet installation that is used primarily for saving space
concealed tank
the normal length measurement for an eleongated water closet bowl is ____”
18.5”
______ is the most popular type of urinal flushing method
siphon jet
the _____ urinal flushing method uses a cartridge
waterless
the top of a flush rim of an ADA compiant wall hung urinal must be no more than _____” above the finished floor level
17
_____ are defined as a general classification for plumbing fixtures that include basins and water and drainage fittings that are neither kitchen sinks nor lavatories
sinks
a recessed bath tub is a
built in bathtub
the ___ must be removed from the waste and overflow assembly to service a tub drain
trip lever
a ____ is one of the most common service and repair issues for a shower
enclosure leak
the ideal water temperature for a water cooler is ____ degrees
50 degreees F
10 degrees C
in an elementary school, the nozzle of water cooler should be installed at ____”
30
water lines located for the installation of wash fountain can be found ____
below the sink
emergency eye wash systems must be placed within _____’ of severe corrosives
10
penal ware is typically made of ____
stainless steel
most fixtures are installed in the ____ stage of construction
finishing
a _____ is used for removing stopagges in a water closet
a plunger
fixture fittings do not include
fixtures
a ___ valve is a valve that uses seats and washers to control flow
compression
most compression faucets are a ____ type of faucet
combination
a ____ faucet is a single handle washerless faucet that contains a ball valve
port control
a _____ faucet is normally used in public restrooms
metering
a pullout sprayer is a part of a _____ faucet
kitchen
a pressure balancing valve is normally used on
a shower
a ____ is the most common injury that occurs in a bathroom
scald
a ____ nonscald valve is a valve that has a thermal motor
thermostatic
a ____ valve is the most common type of pressure actuated non scald valve
spool type
a ___- should be used to remove a faucet seat
seat wrench
currently, plumbing materials that are defined as “lead free” have up to _____ of lead in the materials
8%
mold can form on any material containing ?
cellulose
a residential food waste disposer usually replaces the kitchen sink _____
basket strainer
a ____ connects the food waste disposer waste tailpiece and the waste tailpiece for the other basin or basins
basket strainer
commercial food waste disposers have motors that range up to ___ HP
10
never place a hand into a disposer until _____
it is de energized
a food waste disposer motor should be unjammed with a ____
disposer tool
the food waste disposer sink flange should be set with ____
plumbers putty
most plumbing codes ____ in the discharge of the dishwasher
require an air gap fitting
a _____ is a solenoid powered valve
dishwasher water inlet valve
the dishwasher water inlet valve is normally located _____ the dishwasher
under
_____ is the first thing to do when a dishwasher is not draining
checking the drain hose
_____ should be used to clean the wrong type of soap out of the dishwasher
white vinegar
_______ water contains excessive amounts of calcium and magnesium
hard
water is identified as ___ water if it contains 1 to 3.5 grains of calcium or magnesium per gallon
slightly hard
____ are atoms that carry an electrical charge
ions
an ____ is a device that uses a magnetic or electrostatic field to alter the reaction between scale forming ions in hard water
electronic water softener
a ____ substance is contained in the water softener tank
zeolite
soft water is not piped to ____
hose bibs
a ____ is installed in water supply piping to remove chlorine or lead in the water
water filter
carbon filters are usually installed in a _____
refrigerator
a reverse osmosis system removes up to ____ of the undesirable elements in a water supply
99%
a reverse osmosis system has up to _____ stages of filtration
five
an RO system should be sanitized every ____ months
12
what are the methods of heat transfer
conduction, convection, and radiation
heat produced from light from the sun is ___ heat
radiation
a water heater has limiting controls for heating water up to ____ degrees F
210 degrees F
the time it takes a water heater to heat incoming cold water to replace the hot water that is being used is called the ___ rate
recovery
with a direct water heater ____
the water is in direct contact with the heat source
with an indirect water heater, ____
a heat exchanger is used
globe valves are generally used for _____
throttling
a common method used to address hot water waste in a centralized water heater is ______
a circulation loop
gravity circulation is induced by natural _____
convection
______ piping hot water piping systems require a method of accounting for thermal expansion
closed
a method of accounting for thermal expansion in a hot water piping system is an ____
expansion tank
the major drawback to storage water heaters is
standby heat loss
the dip tube is connected to the
cold water inlet
an immersion heating element _____ the tank
is inserted into
gas fired water heaters that are 90% to 95% efficient have ______ burners
condensing type
the gas fired water heater uses a ____ to control the pilot flame
thermocouple
a vent system that uses separate piping for combustion and its products of combustion is a ____
direct vent
a ______ flue system is the most commonly used flue system in commercial and residential gas fired water heaters
center
a passive solar water heater installation requires that the collectors be _____
below the water heater
a type of solar water heating system used when freezing temperatures are possible is a _____ system
drainback
the most common type of solar energy collector is the
flat plate
combination water heaters use the same heat sources for domestic hot water and _____ heating
space
anode rods protect the water heater from
galvanic corrosion
a system that uses water as the heat transfer medium is a ______
hydronic system
typical hot water heating systems operate at _____ degrees for supply water
170 f
natural circulation hot water heating systems operate at ____ degrees for return water
150
a _____ is a hot water boiler fitting that measures the water temperature in the boiler and controls the temperature by starting and stopping the burner
aquastat
MAWP is an acronym for _____
maximum allowable working pressure
the _____ determines the flow rate of the water circulation system in the hydronic heating unit circuit
circulating pump
_____ boilers are hot water boilers that are generally high pressure boilers used in large systems
water tube
the boiler relief valve should be located at the ____ of the boiler
highest part
the primary function of the _____ is to de energize the burner limit circuit and shut down the burner if the water level in the hot water system drops below a safe operating level
low water cut off
the most common cause of problems in a hot water heating system is ____ air
air
the flow control valve is installed on the _______ of the boiler
outlet line
a pressure reducing valve reduces incoming makeup water pressure to approximately ______ psi for use as makeup water in a hot water heating system
12 - 18 psi
expansion tanks are placed at the ____ of the hot water heating system
top
compression tanks are normally ______ of water
half full
_____ may not be used for hydronic piping
pvc
a _____ system is used for small buildings
one pipe hot water heating
the adjustment of the resistance to the flow of water through the piping loops in a system is called
balancing
radiant heating systems use _____ to heat building spaces
thermal radiation
cabinet convector is used in _____ heating
convection
any part of a building that is controlled by a hot water heating control device is a _______
zone
most technicians today use a digital _____ to test for voltage, amperage, and resistance.
multimeter
local, state, and federal regulations require periodic inspections of all boilers by an
authorized inspector
strainers are normally located before ______
pumps
the water seal traps main purpose is to _____
eliminate the possibility of sewer gas entering the building
_____ should be used when replacing a trap
new slip nut washer
drum traps are not used on
bidets
an internal screen can be found in a _____
hair and lint trap
an interceptor is not designed to retain _____
sanitary waste
______is added to a neutralizing tank intercepting acidic waste
calcium carbonate
the term grease interceptor refers to any device used to remove
FOG (non petroleum fats, oils, grease.)
the grease interceptor acts as a ____
FOG (fats oils grease) removal device
______ are used in the collection, retention, and disposal of FOG.
GRD’s
hydro mechanical grease interceptors
gravity grease interceptors
grease removal devices
what was called a “grease trap” in the past, is now called a ______
hydromechanical grease interceptor
the two factors that must be addressed in maintaining a FOG disposal system are _____
service interval and FOG disposal
flammable liquids are retained in an _____
oil interceptor
sand interceptors are used in ____
car washes
a private sewage disposal system does not empty effluent into a?
neutralizing field
sewage is digested in a septic tank by?
bacteria
the most common disposal method for private sewage disposal system is an _____
adsorption field
name the layers in a septic tank
sludge
scum
effluent
blockages in inflow and outflow piping of septic tanks are most often caused by _____
tree roots
an on site rainwater collection system is commonly called a ______
rainwater harvesting system
the piping system and storage tank of a rainwater system should be _______ once a year
flushed out
if the effluent in a septic tank is leaking into the soil because of corrosion, the tank must be ______
replaced
the most difficult part of a FOG removal system is _______
maintenance
a gravity grease interceptor uses _____ to intercept grease
gravity
