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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) Turn off the water supply
B) Locate your tools
C) Call a plumber
D) Start taking things apart
  • 2. What tool is best for tightening pipe fittings?
A) Pipe wrench
B) Pliers
C) Screwdriver
D) Hammer
  • 3. What is Teflon tape used for in plumbing?
A) Insulating pipes
B) Cleaning pipes
C) Gluing pipes together
D) Sealing pipe threads
  • 4. What type of pipe is commonly used for water supply lines?
A) Copper or PEX
B) Clay
C) Cast iron
D) Cardboard
  • 5. What tool is used to cut copper pipe?
A) Scissors
B) Tube cutter
C) Chisel
D) Hacksaw
  • 6. What is a common cause of a leaky faucet?
A) Worn-out washer
B) Dirty pipes
C) High water pressure
D) Loose screws
  • 7. What is the purpose of a P-trap under a sink?
A) To filter the water
B) To prevent sewer gases from entering the house
C) To hold dirty water
D) To regulate water pressure
  • 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) Pour boiling water on the pipe
C) Hit the pipe with a hammer
D) Use a torch directly on the pipe
  • 10. What is the purpose of a shut-off valve?
A) To filter the water
B) To stop the water flow to a specific fixture
C) To increase water pressure
D) To drain the entire plumbing system
  • 11. Which of these is a common type of pipe joint?
A) Weld
B) Compression fitting
C) Knot
D) Staple
  • 12. What does PVC stand for in plumbing?
A) Pressure valve control
B) Pure valve conduit
C) Polyvinyl chloride
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) Glue
C) Welding
D) Crimp rings or expansion fittings
  • 15. What can cause 'water hammer'?
A) Low water pressure
B) Frozen pipes
C) Sudden stop of water flow
D) Clogged drains
  • 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 provide hot water
D) To filter the water
  • 17. What is the best way to remove hard water stains?
A) Bleach
B) Vinegar
C) Ammonia
D) Baking soda
  • 18. What type of wrench is specifically designed for working with nuts and bolts?
A) Basin wrench
B) Monkey wrench
C) Pipe wrench
D) Adjustable wrench
  • 19. What is the function of a toilet flapper?
A) To clean the toilet bowl
B) To prevent overflowing
C) To seal the flush valve and allow the tank to fill
D) To control the water pressure
  • 20. What is the purpose of a basin wrench?
A) To cut copper pipes
B) To tighten or loosen nuts under sinks and faucets
C) To measure water pressure
D) To weld pipes
  • 21. What is used to seal the connection between a toilet and the floor?
A) Wax ring
B) Duct tape
C) Silicone caulk
D) Rubber seal
  • 22. What is the purpose of a pressure reducing valve (PRV)?
A) To filter sediment from the water
B) To heat the water
C) To increase the water pressure
D) To lower the water pressure in a building
  • 23. When soldering copper pipes, what prevents oxidation?
A) Water
B) Teflon tape
C) Flux
D) Air
  • 24. What does 'sweating' a pipe mean?
A) Soldering a copper pipe
B) Freezing a pipe
C) Cutting a pipe
D) Bending a pipe
  • 25. What is a snake used for in plumbing?
A) Tightening pipe fittings
B) Clearing clogs deep in pipes
C) Measuring pipe diameter
D) Insulating pipes
  • 26. What is the purpose of a water heater's temperature and pressure relief valve?
A) To control the water temperature
B) To increase water pressure
C) To prevent explosions due to excessive pressure or temperature
D) To filter the water
  • 27. Which material is NOT suitable for potable (drinking) water lines?
A) Copper
B) CPVC
C) PEX
D) Lead
  • 28. What is CPVC commonly used for?
A) Gas lines
B) Hot water lines
C) Drain lines
D) Sewer 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) Loosen the bolts
B) Remove the old toilet
C) Disconnect the water supply line
D) Call a professional
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