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Identify the figure shown below. It is a type of coupling with male thread on one side.
Extension Piece
Combination Nipple
Street Nipple
Street Piece
Which is the most important among the ff water supply fittings?
Elbow
Coupling
Tee
Bushing
An ordinary fitting having a back outlet (opposite to the branch). The axes of all the outlets lie in the same plane and are at right angle to each other.
Cross Fitting
Reared-Outlet Tee
Double Tee
Double Fitting
What is the purpose of a plug?
Closing pipe ends with male thread.
Closing pipe ends with no thread.
Closing pipe ends with female thread.
Closing pipe ends with burr.
It is a fitting that has a main function of connecting the male end of a pipe to a fitting of a larger size.
Crossed Fitting
It is a type of elbow with a third opening perpendicular to the plain of the run.
Side-outlet Elbow
Three-outlet Elbow
Branched Elbow
Special Elbow
Identify the figure shown.
Union Elbow
Combined Elbow
Nut Elbow
Street Elbow
Union Tee
Combined Tee
Nut Tee
Street Tee
Why are special fittings needed to connect iron and copper pipes?
To prevent galvanic current from being generated by the two dissimilar metals.
To prevent tuberculation in the two dissimilar metals.
To prevent corrosion between the two dissimilar metals.
To prevent abrasion between the two dissimilar metals.
What do you call the process in which the steel and wrought iron pipe rust?
Tuberculation
Corrosion
Oxidation
Decomposition
The minimum depth of pure lead in a caulked joint.
1"
1/2"
3/4"
1 1/2 "
Threaded pipe joint cement or mixture shall be used on ___.
Female thread only
Male thread only
Both
None
What is required for a soft copper water piping?
Flared joint
Soldered joint
Screwed joint
Brazed joint
How are asbestos cement sewer pipe made?
Shall be made with sleeve coupling with same material as the pipe.
Shall be made with resilient type material.
Shall be made with approved joint cement through proper application.
Shall be made using flared joint.
At what locations are traps required?
At every fixture with integral trap.
At every fixture with no integral trap.
At every appurtenance.
None of the above.
What is the relation of the trap and the drain size?
Traps shall be one size smaller than the fixture drain.
Traps shall be one size larger than the fixture drain.
Traps shall be of the same size as the fixture drain.
Traps shall be three sizes larger than the fixture drain.
Identify the figure shown. It is a type of bushing.
Hexagonal Bushing
Closed Bushing
Faced Bushing
Plane Bushing
What is a trap seal primer?
A device used to clean a trap.
A device used to maintain the trap seal.
A device used to drain a trap seal.