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WorksheetsPLUMBER PART 1
Total questions: 30
Worksheet time: 15mins
A person who installs pipes, fixtures and other apparatus to convey and supply water in buildings and to dispose and discharge waste water.
Carpenter
Plumber
Mason
Mechanic
It is a receptacle or vault used to collect organic waste discharged from the house sewer.
Septic tank
Manhole
Water tank
Waste tank
The semi-liquid substance accumulated at the bottom of the septic tank.
Scum
Sediment
Sludge
Silt
An underground tunnel that carries off waste matter from a home or town is called:
Drainage system
Fixture
Sewage
Sewer
The pipe that conveys blackwater
Waste pipe
Soil pipe
Vent pipe
Drain pipe
It is a fitting or device that provides liquid seal to prevent the back passage of air.
Loop
Fixture
Sewer
Trap
The tools used to tighten or loosen hexagonal fittings like unions and other metal fittings.
Pipe vise
Pliers
Wrenches
Threader
The kind of fitting used to connect fixed pipe and fixtures is a
Wye fitting
Coupling
Union fitting
Reducer
A fitting or device installed at the inlet of a water pump to prevent backflow of water.
Ball valve
Check valve
Blackwater valve
Gate valve
It is a device installed in water lines that can be a closed or opened to allow installation or troubleshooting of fixtures.
Check valve
Gate valve
Ball valve
Float valve
A schedule 40 pipe is:
Thicker than schedule 20
Thicker than schedule 80
Thinner than schedule 10
None among the choices
What material is used to seal off threaded fittings to avoid leakage?
Masking tape
Teflon tape
Scotch tape
Adhesive gum
What must be installed to prevent siphonage or backflow of the water seal in the drainage system?
Vent pipe
Drain pipe
Soil pipe
Cleanout
Which NOT 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.
All pipe joints must be well-fitted and tightly connected.
What is the ideal inclination of a horizontal waste pipe as recommended by the National Plumbing Code?
2% slope
3% slope
4% slope
0% slope or level position
For purposes of troubleshooting in case of stoppage of flow, what must be installed in the pipe system?
Vent pipe
Cleanout
Drain
Tee fitting
Plastic pipes are commonly used in water fixture installation nowadays. Which of the following is preferred?
Polyvinyl chloride (PVC)
Chlorinated PVC (CPVC)
Cross-linked polyethylene (PEX)
Polyethylene
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
80 mm
less than 75 mm
70 mm
A metal or plastic fitting used to connect smaller pipe from a larger pipe.
Reducer
Elbow
Union
Coupling
As a basic prerequisite for most plumbing projects what should be connected for each faucet, toilet, and fixtures?
Fixture shutoffs
Main shutoffs
Intermediate shutoffs
Valves
A plumber wants to tighten and loosen pipes. Which tool is appropriate?
Pipe cutter
Flux
Pipe wrench
Butane torch
A plumber wants to cut metal pipe. Which tool is appropriate?
Hacksaw
Back saw
Handsaw
Drywall knife
Metal with semi-rigid auger whose end is usually fitted with a hook or corkscrew is called
plumber's snake
plunger
valve
bushing
If your toilet has trouble, you use rubber funne shape instrument attached to the end of the handle for unblocking. What is this tool?
plumber's snake
valve
plunger
bushing
Which plumbing tool is used for gripping large pipes and irregular objects?
monkey wrench
chain wrench
yoke vise
pipe wrench
A plumber wants to create thread outside pipe hand. Which tool is appropriate?
Pipe cutter
Pipe threader
Yoke vise
Pipe wrench
A plumber wants to cut pipes. Which holding tool is needed?
Vise grip
Pipe threader
Yoke vise
Pipe wrench
The following are good plumbing practices, EXCEPT:
rainwater harvesting
water conservation
gray water recycling
excessive water consumption
Water contaminants are being forced back into the water piping system. Which term is referred to?
Water flow
Back flow
Pressure
Harvesting
The following are examples of plumbing fixtures, EXCEPT:
water closet
drainage
shower
urinals
