Distribution
A push on type joint has a ________ in the hub end
what is a gasket
BC plumbing code defines this as a device or method that prevents backflow
What is a backflow preventer
These meters have an insulated section through which water flows and induces an electrical current that is proportional to the velocity
What is magnetic
This will save your hot water tank from corrosion
What is an anode
This method of sizing is used most often for 1-2 dwelling homes
What is the simple method
These stops water from moving piping underground
What are thrust blocks
This term means the use of water for human consumption, food prep, or sanitation
What are domestic purposes
This meter has tangenital openings in a chamber to direct the water flow across a rotor with many vanes. Flow is measured to the speed of the rotor
What is multi-jet
Heat from the combustion of fuel, collection of solar energy, or electrical energy into heat for water heating equipment
What is direct heating
This method is used if the simple method is over 90m and the static pressure not less then 200kpa
What is the small building method
To protect buried piping it must be installed below this line
What is the frost line
The fixture or device connected to a building water distribution system that requires more pressure then the others to opperate
What is the governing fixture
This meter works on the same principal as the venturi meter, except that instead of decreasing a crosssection it has a disk with a concentric hole. Flow is calculated by measuring the difference in pressure
What is orifice meter
Heat energy developed from remote heat sources like boilers, solar, congeneration, refrigeration, waste heat, ect. and transferred to water
What is indirect heating
This method is used to make sure friction loss will be overcome with the pressure available
What is the average pressure loss method
This method is used when installing a corporation stop into the wall of a water main.
What is direct tapping
BC plumbing code defines them as a device for heating water for plumbing services
What is a service water heater
This meter has a fan shaped rotor that spins with the flow of water and records how fast the rotor spins
What is a propeller meter
Water heaters designed to deliver hot water almost instantaneously and installed at the location of the fixture
What is point of use
When sizing water systems the most _______ fixture is used for the hot water system
What is remote
Before inserting pvc pipe into the hub end this must be done to the cut end.
What is beveling
A device used to measure the volume of water that passes through it
What is a water meter
This meter has a rotating element that turns with the flow of water. Water volume is measured by the number of revolutions
What is turbine meter
I am installed on a hot water heater to make sure it wont over pressurize
What is a pressure relief valve
Water distribution systems are calculated using this sizing unit
What is a fixture unit