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How to do basic plumbing
Contributed by: Black
  • 1. What is the first thing you should do before starting any plumbing repair?
A) Start taking things apart
B) Locate your tools
C) Turn off the water supply
D) Call a plumber
  • 2. What tool is best for tightening pipe fittings?
A) Screwdriver
B) Pliers
C) Hammer
D) Pipe wrench
  • 3. What is Teflon tape used for in plumbing?
A) Cleaning pipes
B) Sealing pipe threads
C) Insulating pipes
D) Gluing pipes together
  • 4. What type of pipe is commonly used for water supply lines?
A) Cast iron
B) Clay
C) Cardboard
D) Copper or PEX
  • 5. What tool is used to cut copper pipe?
A) Chisel
B) Scissors
C) Hacksaw
D) Tube cutter
  • 6. What is a common cause of a leaky faucet?
A) High water pressure
B) Dirty pipes
C) Loose screws
D) Worn-out washer
  • 7. What is the purpose of a P-trap under a sink?
A) To hold dirty water
B) To regulate water pressure
C) To filter the water
D) To prevent sewer gases from entering the house
  • 8. What is the term for water that flows back into the potable water supply?
A) Backflow
B) Overflow
C) Water pressure
D) Water hammer
  • 9. What is the best way to thaw a frozen pipe?
A) Apply heat gradually with a hairdryer
B) Use a torch directly on the pipe
C) Hit the pipe with a hammer
D) Pour boiling water on the pipe
  • 10. What is the purpose of a shut-off valve?
A) To increase water pressure
B) To filter the water
C) To drain the entire plumbing system
D) To stop the water flow to a specific fixture
  • 11. Which of these is a common type of pipe joint?
A) Staple
B) Knot
C) Compression fitting
D) Weld
  • 12. What does PVC stand for in plumbing?
A) Pressure valve control
B) Polyvinyl chloride
C) Pure valve conduit
D) Plumbing vent connection
  • 13. What is a plunger used for?
A) Cutting pipes
B) Measuring pipe length
C) Tightening screws
D) Clearing clogs in drains
  • 14. How do you typically connect PEX pipe?
A) Soldering
B) Crimp rings or expansion fittings
C) Welding
D) Glue
  • 15. What can cause 'water hammer'?
A) Frozen pipes
B) Sudden stop of water flow
C) Clogged drains
D) Low water pressure
  • 16. What is the primary purpose of a vent pipe?
A) To increase water pressure
B) To allow air into the drain system
C) To filter the water
D) To provide hot water
  • 17. What is the best way to remove hard water stains?
A) Ammonia
B) Bleach
C) Baking soda
D) Vinegar
  • 18. What type of wrench is specifically designed for working with nuts and bolts?
A) Basin wrench
B) Adjustable wrench
C) Pipe wrench
D) Monkey wrench
  • 19. What is the function of a toilet flapper?
A) To clean the toilet bowl
B) To control the water pressure
C) To seal the flush valve and allow the tank to fill
D) To prevent overflowing
  • 20. What is the purpose of a basin wrench?
A) To cut copper pipes
B) To measure water pressure
C) To weld pipes
D) To tighten or loosen nuts under sinks and faucets
  • 21. What is used to seal the connection between a toilet and the floor?
A) Silicone caulk
B) Wax ring
C) Duct tape
D) Rubber seal
  • 22. What is the purpose of a pressure reducing valve (PRV)?
A) To heat the water
B) To increase the water pressure
C) To lower the water pressure in a building
D) To filter sediment from the water
  • 23. When soldering copper pipes, what prevents oxidation?
A) Flux
B) Teflon tape
C) Air
D) Water
  • 24. What does 'sweating' a pipe mean?
A) Soldering a copper pipe
B) Freezing a pipe
C) Bending a pipe
D) Cutting a pipe
  • 25. What is a snake used for in plumbing?
A) Clearing clogs deep in pipes
B) Measuring pipe diameter
C) Insulating pipes
D) Tightening pipe fittings
  • 26. What is the purpose of a water heater's temperature and pressure relief valve?
A) To control the water temperature
B) To filter the water
C) To prevent explosions due to excessive pressure or temperature
D) To increase water pressure
  • 27. Which material is NOT suitable for potable (drinking) water lines?
A) Lead
B) CPVC
C) PEX
D) Copper
  • 28. What is CPVC commonly used for?
A) Gas lines
B) Drain lines
C) Sewer lines
D) Hot water lines
  • 29. What should you do if you suspect a major plumbing leak?
A) Turn off the main water supply immediately
B) Try to fix it yourself without turning off the water
C) Call a neighbor for help
D) Ignore it and hope it goes away
  • 30. When replacing a toilet, what is the first step after shutting off the water?
A) Call a professional
B) Loosen the bolts
C) Remove the old toilet
D) Disconnect the water supply line
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