- So that the ballcock (fill valve) will close even if the water closet combination shall be above the rim of the bowl at least:
A. 1-1/2 inch.
B. 3/4inch.
C. 1 inch.
D. 2 inch.
C. 1 inch.
- A lavatory shall have a strainer, pop-up stopper, crossbar or other device:
A. That would allow the user to have full access to the lavatory.
B. Shall be provided to restrict the clear opening of the waste outlet.
C. Shall be provided to un-restrict the clear opening of the waste outlet.
D. Shall be provided so maintenance of fixture would be made easier.
B. Shall be provided to restrict the clear opening of the waste outlet.
- Horizontal hard temper type “L” copper tubing for the branch water supply to a lavatory shall be supported at intervals no greater than:
A. 8 ft.
B. 6 ft.
C. 5 ft.
D. 4 ft.
B. 6 ft.
- As a safety precaution, concentrated sulfuric acid should be :
A. Diluted by pouring the acid into the water.
B. Stored in a metal container lined with a tin coating.
C. Stored in a tile container lined with a zinc coating.
D. Diluted by pouring cold water into the acid.
A. Diluted by pouring the acid into the water.
- The lowest point in the trap to which the liquid surface can drop before air or gas can pass through the trap is the :
A. Dip.
B. Crown weir.
C. Clean-out.
D. Crown.
A. Dip.
- Pipe nipples of 8-7/8”, 11-1/2”, 10-1/4”. 7-1/16” and 9-3/4” were made. The minimum length of pipe used was most nearly. (Allow 1/16” for cutting):
A. 47-7/16”,
B. 47-7/8”.
C. 47-3/4”.
D. 46-7/16”.
C. 47-3/4”.
- Cleanouts on a 6-inch building (house) trap is required to be a minimum diameter of most nearly:
A. 3 in.
B. 4 in.
C. 5 in.
D. 6 in.
B. 4 in.
- For the purpose of rodding, cleanouts on 3-inch or larger pipes shall be so installed that is a clearance of not less than:
A. 18 in.
B. 24 in.
C. 30 in.
D. 36 in.
D. 36 in.
- The probable results of double trapping a fixture is most likely:
A. Loss of water.seal due to momentum.
B. Obnoxious gases entering into the room.
C. Loss of water seal due to siphonage.
D. A stoppage in the waste branch.
D. A stoppage in the waste branch.
- Trap size shall be consistent with the:
A. Drainage fixture units (DFU).
B. With the minimum pipe size.
C. Fixture outlet size.
D. Maximum pipe sizes.
C. Fixture outlet size.
- The one location that the discharge of an oil separator cannot be independently connected to is the:
A. Building house drain.
B. Building house sewer.
C. Street side of the building trap.
D. Street (public) sewer.
A. Building house drain.
- Slip joints, when used in approved plumbing installations, are generally not found:
A. Trap outlet.
B. Trap inlet.
C. Within the trap.
D. Cleanouts
D. Cleanouts
- Each plumbing fixture shall be separately trapped by a water seal trap, except as otherwise permitted by this code. The trap shall be placed as close as possible to the fixture outlet.The vertical distance from the fixture outlet to the trap weir not exceed:
A. 12 inches.
B. 24 inches.
C. 30 inches.
D. 36 inches.
B. 24 inches.
- Each trap and trapped fixture is permitted to be provided with an individual vent. The individual vent shall connect not more than:
A. 24 inches to the fixture drain of the trap or trapped fixture being vented.
B. 36 inches to the fixture drain of the trap or trapped fixture being vented.
C. 48 inches to the fixture drain of the trap or trapped fixture being vented.
D. inches to the fixture drain of the trap or trapped fixture being vented.
C. 48 inches to the fixture drain of the trap or trapped fixture being vented.
- Water service pipe shall be sized to supply water to the structure in the quantities and at the pressures required in this code. The minimum diameter of water service pipe shall be:
A. 3/4”.
B. 1”.
C. 1-1/4”.
D. 1-1/2”.
B. 1”.
