Master Plumber Pre-board Exam Part 2

100 Questions | Total Attempts: 1682

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Master Plumber Pre-board Exam Part 2


Questions and Answers
  • 1. 
    Which of the following does not directly affect the size of a sanitary drainage pipe?
    • A. 

      Type and number of fixtures

    • B. 

      Fixture unit value of fixtures

    • C. 

      Type of ventilation system

    • D. 

      Slope of drain

  • 2. 
    To boost the water pressure of hot water, use
    • A. 

      Elevated water tank

    • B. 

      Hydroelectric tank

    • C. 

      Gravity tank

    • D. 

      Circulating pump

  • 3. 
    A tool used to make watertight joints between flexible copper tubing and fitting or valve.
    • A. 

      Flaring tool

    • B. 

      Pipe vise

    • C. 

      Yoke vise

    • D. 

      Pipe extractor

  • 4. 
    A term used to describe the installation of pipes, fittings, devices or other component parts of the plumbing system which can be completed prior to the installation of fixtures or finishing.
    • A. 

      Pipelaying

    • B. 

      Plumbing assembly

    • C. 

      Roughing in

    • D. 

      Mock up installation

  • 5. 
    The following are examples of sanitary wares EXCEPT __________.
    • A. 

      Kitchen sink

    • B. 

      Bathtub

    • C. 

      Urinal

    • D. 

      Water closet

  • 6. 
    What is the other word for plumber's friend?
    • A. 

      Plumbing apprentice

    • B. 

      Force cup

    • C. 

      Journeyman

    • D. 

      Pipe fitter

  • 7. 
    Which among the plumbing practices is prohibited under the code?
    • A. 

      Double trapping a fixture

    • B. 

      Providing a vent pipe to a fixture

    • C. 

      Using fittings to connect pipes instead of bending

    • D. 

      Providing an air gap or air break between the outlet and the flood level rim of a fixture

  • 8. 
    Which plumbing principle is contrary to established principles as stipulated in the National Plumbing Code?
    • A. 

      Water closet shall be located in a properly lighted and ventilated room

    • B. 

      Plumbing system shall be maintained in a sanitary and serviceable condition

    • C. 

      Vent terminal shall not extend above the roof

    • D. 

      Fixture directly connected to the plumbing system shall be equipped with a water-sealed trap

  • 9. 
    A bidet is a plumbing fixture used for washing ______________.
    • A. 

      Body

    • B. 

      Face

    • C. 

      External genitalia

    • D. 

      Feet

  • 10. 
    How many cubic inches are there in a cubic foot?
    • A. 

      144 cu ins.

    • B. 

      1235 cu ins.

    • C. 

      1500 cu ins.

    • D. 

      1728 cu ins.

  • 11. 
    What do you call that portion of the drainage system which cannot drain by gravity into the building sewer? It requires the use of a sump pump installed in a sump pit where wastewater is collected and drained into the sewer line using a sump pump.
    • A. 

      Building sewer

    • B. 

      Building subdrain

    • C. 

      Building drain

    • D. 

      Subsoil drain

  • 12. 
    All plumbing fixtures listed below are included under the definition of a plumbing unit except ______________.
    • A. 

      Water meter

    • B. 

      Lavatory

    • C. 

      Water closet

    • D. 

      Urinal

  • 13. 
    Which in the list considered the most efficient type of venting system?
    • A. 

      Combination waste and vent

    • B. 

      Wet vent

    • C. 

      Individual vent

    • D. 

      Group vent

  • 14. 
    What is the recommended slope percentage of horizontal drainage pipe as provided in the code ?
    • A. 

      1%

    • B. 

      2%

    • C. 

      3%

    • D. 

      4%

  • 15. 
    An upright wye combination is a kind of ________.
    • A. 

      Fixture

    • B. 

      Tool

    • C. 

      Pipe

    • D. 

      Fitting

  • 16. 
    In a trap, what do you call the vertical distance between the top dip and the crown weir?
    • A. 

      Overflow

    • B. 

      Invert

    • C. 

      Crown

    • D. 

      Trap seal

  • 17. 
    What testing method is most recommended for sanitary piping system?
    • A. 

      Air pressure test

    • B. 

      Smoke test

    • C. 

      Water pressure test

    • D. 

      Hydrostatic test

  • 18. 
    What is the minimum fixture drain size of a wash basin?
    • A. 

      25 mm

    • B. 

      32 mm

    • C. 

      38 mm

    • D. 

      50 mm

  • 19. 
    Storm water refers to _________.
    • A. 

      Rainwater, surface run-off

    • B. 

      Liquid plus human waste

    • C. 

      Waste from laundry, sink, etc.

    • D. 

      Domestic sewage

  • 20. 
    Which of the following is used to achieve change in direction?
    • A. 

      Pipe

    • B. 

      Fitting

    • C. 

      Fixture

    • D. 

      Appurtenance

  • 21. 
    Which fitting or fitting combination is best used at the base of a soil or waste stack?
    • A. 

      Short sweep, 1/4 bend

    • B. 

      1/4 bend

    • C. 

      2- 1/8 bend

    • D. 

      Wye branch and 1/8 bend

  • 22. 
    Every exposed trap must _________.
    • A. 

      Be self cleaning

    • B. 

      Have inadequate trap seal in order to cause trap seal loss

    • C. 

      Not be provided with a removable cleanout plug

    • D. 

      Not be able to retain large amount of waste water

  • 23. 
    Which of the following is not a sanitary drainage fitting?
    • A. 

      Wye branch

    • B. 

      Nipple

    • C. 

      Tapped tee

    • D. 

      Upright wye

  • 24. 
    Which of the following materials is not recommended for water supply system application?
    • A. 

      Concrete pipe

    • B. 

      Brass pipe

    • C. 

      Plastic pipe

    • D. 

      Galvanized steel pipe

  • 25. 
    The following are the types of copper tubes EXCEPT __________.
    • A. 

      Type K

    • B. 

      Type L

    • C. 

      Type M

    • D. 

      Type N

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