CHAPTER 4: PLUMBING FIXTURES

1. What is the minimum required area for a shower receptor?

• A) 0.5 square meters

• B) 0.6 square meters

• C) 0.7 square meters

• D) 0.8 square meters

What is the minimum diameter of the encompassing circle that must fit within a shower receptor?

• A) 600 mm

• B) 700 mm

• C) 762 mm

• D) 800 mm

Which of the following is NOT allowed to protrude within the shower height requirement?

• A) Showerhead

• B) Fixture valves

• C) Safety rails

• D) Cabinet shelves

What type of water closet should be used for public restrooms?

• A) Round bowl with closed seats

• B) Square bowl with a cushioned seat

• C) Elongated type toilet with open front seats

• D) Compact bowl with no seat cover

Restaurant kitchen sinks may be made of which of the following materials?

• A) Bonderized steel

• B) Galvanized sheet steel (16 gauge or 1.6mm thick)

• C) Stainless steel only

• D) Both A and B

How should the waste from a sacrarium cupsink be disposed of?

• A) Into the main sanitary drainage system

• B) Directly into the ground

• C) Through a septic tank

• D) Into a grease trap

The overflow pipe in a plumbing system must be connected to which part of the fixture?

• A) Outlet side of the trap

• B) Inlet side of the trap

• C) Directly to the drain

• D) Above the fixture rim

Which plumbing component must have a waterway equivalent to the area of its tailpiece?

• A) Overflow pipe
  
  
  

• B) Shower drain strainer

• C) Continuous waste pipe

• D) Water supply line

The minimum outer diameter (O.D.) of a tailpiece for sinks, dishwashers, and similar fixtures is:

• A) 25 mm

• B) 32 mm

• C) 38 mm

• D) 50 mm

How should wall-hung plumbing fixtures be supported?

• A) By resting on the floor

• B) With wooden brackets

• C) With metal supporting members or fixture carriers

• D) By screwing them directly into the wall