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WorksheetsTLE-PLUMBING
Total questions: 60
Worksheet time: 30mins
A person who installs pipes, fixtures and other apparatus to convey and supply water in buildings and to dispose and discharge waste water.
Plumber
Carpenter
It is a receptacle or vault used to collect organic waste discharged from the house sewer.
Septic Tank
Water Tank
The semi-liquid substance accumulated at the bottom of the septic tank.
Sludge
Scum
An underground tunnel that carries off the drainage and waste matter from a home or town is called:
Sewer
Sewerage
The pipe that conveys waste from various fixture other than from the water closet.
Waste Vipe
Vent Pipe
It is a fitting or device that provides liquid seal to prevent the back passage of air.
Loop
Trap
The tools used to tighten or loosen hexagonal fittings like unions and other metal fittings.
Pipe Vise
Wrenches
The kind of fitting used to connect fixed pipe and fixtures is a ________.
Wye Fitting
Union Fitting
A fitting or device installed at the inlet of a water pump to prevent backflow of water.
Ball Valve
Check Valve
It is a device installed in water lines that can be closed or opened to allow installation or troubleshooting of fixtures.
Ball Valve
Check Valve
A schedule 40 pipe is:
Thicker than schedule 20
Thicker than schedule 80
What material is used to seal off threaded fittings to avoid leakage?
Teflon Tape
Masking Tape
What must be installed to prevent siphonage or backflow of the water seal in the drainage system?
Vent Vipe
Drain Pipe
Which of the following is NOT required by the National Plumbing Code?
Drainage pipe should be inclined properly for a downward gravity flow of water.
Drainage pipe should be provided with adequate cleanout.
No vent pipe is needed.
What is the ideal inclination of a horizontal waste pipe as recommended by the National Plumbing Code?
2% Slope
3% Slope
For purposes of troubleshooting in case of stoppage of flow, what must be installed in the pipe system?
Vent Pipe
Cleanout
Plastic pipes are commonly used in water fixture installation nowadays. Which of the following is preferred?
Chlorinated PVC (CPVC)
Polyvinyl chloride (PVC)
The Plumbing Code on House Drain provides that there must be no more than two closets that shall discharge into a ________ pipe diameter.
3 inches or 75 mm
less than 75 mm
A metal or plastic fitting used to connect smaller pipe from a larger pipe.
Reducer
Coupling
As a basic prerequisite for most plumbing project, what should be connected for each faucet, toilet, and fixtures?
Main shutoff
Fixture Shutoff
A plumber wants to tighten and loosen pipes. Which tool is appropriate?
Pipe Threader
Pipe Wrench
A plumber wants to cut metal pipe. Which tool is appropriate?
Hack saw
Back saw
Metal with semi-rigid auger whose end is usually fitted with a hook or corkscrew is called ________.
Plumbers Snake
Plunger
If your toilet has trouble, you use rubber funnel-shape instrument attached to the end of the handle for unblocking. What is this tool?
Plumber's Snake
Plunger
Which plumbing tool is used for gripping large pipes and irregular objects?
Monkey wrench
Chain wrench
A plumber wants to create thread outside pipe by hand. Which tool is appropriate?
Pipe wrench
Pipe Threader
A plumber wants to cut pipes. Which holding tool is needed?
Yoke vise
Vise grip
A plumber wants to hold pipe by hand. What tool is needed?
Yoke vise
Vise grip
The following are good plumbing practices, EXCEPT:
rainwater harvesting
water conservation
excessive water consumption
Water contaminants are being forced back into the water piping system. Which term is referred to?
Waterflow
Backflow
The following are examples of plumbing fixtures, EXCEPT:
water closet
drainage
urinal
Which statement is NOT true about plumbing standards based on Republic Act 1378 which is known as "Plumbing Law"?
Each fixture directly connected to the drainage system shall be equipped with a water-sealed trap.
Plumbing shall be designed and adjusted to use the maximum quantity of water consistent with proper performance and cleaning.
A compartment that receives solid or liquid waste, located below the normal grade of the gravity system is called ________.
sump
septic
Which is true about toxic substance?
Hazardous to human health
Not Hazardous to human health
Water that is safe for drinking, cooking, and personal use is ________.
potable
purifier
Which among the following best describes a toilet bowl?
A room or booth containing a toilet
The Box Type compartment holding water for flushing the toilet
Plumbing ventilation means to ________.
a. carry sewer gas out and relieve pressure of the drainage system
b. discourage corrosion in the drainage piping
Rainwater from the roof down to the ground passes through what pipe?
downspout
gutter
A pipe that conveys only liquid waste is called ________.
vent pipe
waste pipe
If you install water supply inside the building, what is the diameter of pipes needed?
0.75 inch
0.5 inch
In which type of pipes does portable water travel
galvanized pipe
PVC Pipe
If your water system has leak, where can you shut off the flow of water?
Gate Valve
Ball Valve
A plumber wants to install a liquid seal to prevent sewer gasses from entering the building. What device is needed?
Trap
Backflow preventer
A plumber wants to shut off the flow of water just 90 degrees turn. Which valve is appropriate?
Gate Valve
Globe Valve
What do you call those flexible waterproof ribbon for covering threaded pipes joints to prevent leakage?
teflon tape
masking tape
If the end of a PVC pipe is fitted with a male adopter, what fitting will be used to stop the flow of the water?
cap
plug
How many PVC pipes can be installed in a 7.50 meter distance?
2 pcs
2.5 pieces
If the end of the PVC pipe is fitted with a female adopter, what fitting will be used to stop the flow of the water?
cap
plug
A plumber wants to connect two length of pipes. Which fitting is necessary?
elbow
coupling
If there is leaking in the water supply of lavatory, sink, and water closet, which valve are you going to shut off?
Check Valve
Angle Valve
If you install a soil pipe, what is the standard pitch or slope?
5%
2%
If you put source of potable water, what is the minimum safe distance from the septic tank?
15 meters
10 meters
No cesspool, septic tank or drain fields shall be located within how many meter radius from the well?
15 meters
45 meters
If you plan to drill for a well that can supply water for public use, what is the minimum meter radius from a well to the residences?
100 meters
150 meters
Every trap for bath tubs, lavatories, sink, and other similar fixture shall be _________.
self regulating
self cleaning
There should be no concrete sanitary sewers existing within how many meter radius from the well?
15 meters
45 meters
The standard length of a PVC pipe is _________.
12 ft.
10 ft.
If you want to estimate the number of G.I. pipes needed from your house to the main supply, what is the standard length of a G.I. pipe that you are going to use?
3 ft.
6 ft.
If you want to estimate the number of PVC pipes needed from your house to the main supply, what is the standard length of a PVC pipe that you are going to use?
6.0 ft.
3.0 m
All plumbing fixtures must have P-trap, EXCEPT:
Lavatory
Water closet
