Plumbing School Year 3 Module 9 Exam Questions with Latest Update
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Course
Plumbing
Institution
Plumbing
Before shutting off electrical and water service within a building, - Answer-notify the owner and occupants
When on a service call to a commercial building, enter a room only - Answer-when accompanied by the customer
To repair a leak in a copper filing without the use of prescription fittings...
Plumbing School Year 3 Module 9 Exam
Questions with Latest Update
Before shutting off electrical and water service within a building, - Answer-notify the
owner and occupants
When on a service call to a commercial building, enter a room only - Answer-when
accompanied by the customer
To repair a leak in a copper filing without the use of prescription fittings and
connections, - Answer-solder the fitting
To provide temporary protection against frost, wrap pipes with - Answer-electric heat
tape
Static pressure for non circulating water should be kept below - Answer-75 psi
Mineral salts precipitate out of water and stick to the metal surface of pipes as a result
of repeated exposure to - Answer-heat
allow pumps to be removed easily, install them using - Answer-a union or flange
connection
In most cases, old underground supply pipe that has been damaged should be -
Answer-abandoned
Each of the following can cause backflow in a potable water supply system except -
Answer-galvanic corrosion caused by the improper joining of dissimilar metals
To repair a damaged valve state, fit a cutter into a - Answer-reseating tool
When using a multimeter to test an immersion element, it is likely that the element will
need to be replaced if the meter - Answer-goes off the scale
Before installing a fiberglass tub or shower base, manufacturers often recommend
covering the floor with - Answer-a wet bed of mortar
The water temperature required by dishwashers is usually - Answer-between 140
degrees F and 150 degrees F
Service calls to restaurants are frequently the result of blockages in - Answer-the
grease system
, When conducting a smoke test, once the stack has been closed with a test plug, the
pressure should be increased to - Answer-1 inch of water
If a customer offers you a monetary tip when the work is completed, you should -
Answer-politely decline it
When a switch or valve is a set to a safe position and a warning device or note is
attached, the process is called a - Answer-tagout
Since it could cause the pipe to burst, do not attempt to thaw a frozen pipe using -
Answer-boiling water
The pressure exerted by circulating water is called - Answer-dynamic pressure
Water hammer is often caused by - Answer-high water pressure
Private water supply systems often store water in - Answer-bladder tanks
Water that contains large amounts of minerals is called - Answer-hard water
A water filter containing activated carbon is designed to remove - Answer-sulfur
To make sure a replacement water pump is properly matched to a system, an appraisal
might have to be made by a - Answer-building engineer
Before digging to install a replacement water supply pipe, you muse - Answer-locate all
nearby utility lines
To prevent contamination from cross-connection, hose bibbs muse be equipped with a -
Answer-vacuum breaker
Some valves used in commercial installations are controlled by - Answer-light beams
A screw extractor should be turned using a - Answer-tee tap wrench
If preformed stem packing is not available for a valve, us - Answer-twist packing
A flushometer that is controlled by an " electronic eye" is classified as a - Answer-
sensor flushometer
the float-controlled valve used in a water closet is also called a - Answer-ball cock
Debris in the pressure-balancing spindle of a T/P valve may be dislodged by - Answer-
tapping the spool with a plastic hammer
The discs in a ceramic-disc faucet - Answer-rarely need replacing
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