Plumbing - Session 5 Part 2

For water closets an associated flush valves, each flush shall not exceed (on new and replacement after jan. 1, 1992):

A. 1 gallon per flush.

B. 2 gallons of water per flush.

C. 1-1/4 gallon per flush.

D. 1-1/8 gallon per flush.

The elevation of the first floor of a building is 100.0'. If the basement floor is 10'-9" below the first floor, the elevation of the basement floor will be:

A. 89.25 feet.

B. 80.33 feet.

C. 89.67 feet.

D. None of the above.

When provided, the overflow shall be so designed to most nearly:

A. Prevent water in the fixture from rising to the flood level.

B. prevent water from discharging into the trap inlet.

C. Prevent water to remain in the overflow when the fixture is empty.

D. Prevent siphonage of the fixture contents.

The overflow from any:

A. Fixture shall discharge into the drainage system on the: … ?

B. flush tank serving a water closet or urinal shall discharge into: … ?

Prohibited water closets are: | A -G ?

Approved. Washroom and toilet rooms shall:

A. Be illuminated and ventilated.

B. piping, fixtures or equipment shall not be located in such a manner as to interfere with the normal operation of windows, doors or other means of egress openings.

C. Each water closet utilized nu the public or employees shall occupy a separate compartment with walls or partitions and a door enclosing the fixtures to ensure privacy.

D. A, B & C.

Drinking water fountains shall be of a variety that is:

A. 5 gpm.

B. 2 gpm.

C. Manual-closing.

D. Self-closing.

Prohibited water closets are those that have: A, B, C?

Minimum floor area for a single shower compartment is:

A. 300 sq. in.

B. 900 sq. in.

C. 600 sq. in

D. 1200 sq. in.

Bathtubs with an overhead shower shall have waste outlets and overflows a minimum diameter of:

A. 1-1/2" waste outlet and 2" overflow.

B. 2" waste outlet and 2" overflow.

C. 2" waste outlet and 1-1/2" overflow.

D. 1-1/2" waste outlet and 1-1/2" overflow.

A low down tank has the following inside dimensions: 7" wide, 14" long and 11" to the overflow. The gallons contained in this tank is most nearly:

A. 4 gal.

B. 4-1/2 gal.

C. 6 gal.

D. 5 gal.

A 4-inch soil stack and a 3-inch vent stack are to be installed in a pipe shaft. The best dimensions of this shaft is most nearly:

A. 6 in. x 12 in.

B. 7 in. x 14 in.

C. 8 in. x 15 in.

D. 5 in. x 10 in.

In plumbing work, the term, "sheathing and bracing" is most nearly associated with:

A. Insulation.

B. excavation.

C. Pipe hangers.

D. Fixture setting.

The temperature of rinse water in a commercial dishwasher shall not exceed:

A. 140 degrees fahrenheit.

B. 160 degrees fahrenheit.

C. 180 degrees fahrenheit.

D. 200 degrees fahrenheit.

To insure that the flow capacity of the grease interceptor as specified by the manufacturer is not exceeded, a type of fitting that shall be used:

A. Backwater valve.

B. pressure reducing valve.

C. Vented flow control.

D. Un-vented flow control.

The flow velocity of the water distribution system shall be controlled to reduce the:

A. The flow of water in the piping.

B. wear on the piping.

C. The possibility of water hammer.

D. Corrosion of the piping.

Underground inspection and/or testing shall be made after trenches or ditches are excavated and bedded, piping installed, and:

A. Before permits are taken out.

B. after the piping has been treated.

C. Before backfill is put in place.

D. Before plumbers caulked the preformed joints.

All plumbing fixtures, drains, appurtenances and appliances used to receive or discharge liquid waste or sewage:

A. May be discharged into an approved drainage stream.

B. may not have their drainage piping, such as sanitary and storm water piping laid side by side.

C. Building traps shall be installed on all house drains with at least one handhole.

D. Shall be directly connected to the sanitary drainage system of the building or premises, in accordance with the requirements of this code.

Joints at the roof and around vent pipes, may use lead, copper, galvanized steel, aluminum, plastic or other approved flashing materials, and exterior wall openings.

A. Shall be made air tight and water tight.

B. Shall be sealed by using a caulking compound.

C. Shall be made water tight.

D. Shall be made water tight and gas tight.

Building sewers that connect to private sewage disposal systems shall be a minimum of:

A. Shall be a minimum of:36 inches below finished grade at the point of septic connection.

B. building sewers shall be a minimum of 36 inches below grade.

C. Building drains shall be installed a minimum of 36 inches below grade.

D. A & B.

Any pipe that passes under a footing or through a foundation wall shallbe provided:

A. With a relieving arch.

B. With a pipe sleeve built into the foundation wall.

C. The pipe sleeve shall be two pipes sizes greater than the pipe passing through the wall.

D. A, B & C.

Where earthquake loads are applicable in accordance with the building code, plbing piping supports shall be designed and installed:

A. For the seismic forces.

B. Using heavy metal.

C. Using heavy metal brackets braced to the dfoundation walls.

D. In accordance with the footings psi pressures.

Hangers, anchors and supports shall support the piping and:

A. Joints.

B. 3 x the content of the pipes.

C. The contents of the piping.

D. 2 x the content of the piping.

Rigid sway bracing shall be provided at changes in direction greatwrbthan 45 degrees fornpipes sizes:

A. Greater than 4 inches.

B. Smaller than 4 inches.

C. 5 inches and smaller.

D. A, B &C.

Anchorage shall be provided to restrain drainage piping from axial movement. For pipe sizes greater than 4 inches restraints shall be provided for drain pipes at all changes in direction and at all changes in diameter greater than:

A. One pipe diameter.

B. Two pipe diameters.

C. Any change in diameter.

D. Three pipe diameters.

Pipes passing through concrete or cinder walls and floors or other corrosive material shall be protected aganst external corrosion by a protective:

A. Sheathing.

B. Wrapping.

C. A & B.

D. Painting.

Sheathing or wraping of pipes shall not allow for:

A. Expansion of piping.

B. Contraction of piping.

C. Prevent any rubning action.

D. Anything at all.

The minimum thickness of sheathing or wrapping shall be:

A. 0.025 inch.

B. 0.125 inch.

C. 0.25 inch.

D. 0.375 inch.

Pipes passing throuh or umder or under walls shall be protected from:

A. Expansion.

B. Contractionn.

C. Breakage.

D. Proper installation.

Any pipe that passes umder a footing or through a foundation wall shall be provided with a relieving arch, or a pipe sleeve pipe shall be builtninto the foundation wall. The sleeve shall be greater in size than the pipe passing theough the wall:

A. One pipe size.

B. 2 pipe sizes.

C. 1/2" all around.

D. 1" all around.

Annilar spaces between and pipes shall be:

A. Loosely fitted.

B. Tightly fitted.

C. Filled or tightly caulked in an approved manner.

D. Welded shut.

Water, soil and waste pipes shall not be installed outside of a buiding, in attics or crawl spaces, concealed in outside walls or in any other placebsubjected to freezing temperatue:

A. Unless adequate provision is made to protect such pipes from freezing by insulation.

B. Unless adequate provision is made to protect such pipes from freezing by using heat.

C. No subject will permitted.

D. A & B.

Exterior water supply system piping shall be installed not less than:

A. 12 inches below grade.

B. 24 inches below grade.

C. 36 inches below grade.

D. 48 inches below grade.

84, Building sewers that connect to private sewage disposal system shall be a minimum of ... below finishedbgrade at a point of septic tank connection. Building sewers shall be a minimum of ... below grade:

A. 36".

B. 48".

C. 24".

D. 12".

Joints at the roofband around vent pipies, shall be made waterbtight by thebusebof:

A. Lead and copper.

B. Galvanized steel and aluminum.

C. Plastic.

D. All of the above.

Protection from physical damage, in concealed location's where piping, other than cast iron or galvanized steel, is installed through holes or notches in studs, joists, rafters or similar members, less than ... fro the nearest edge of the member, the pipe shall be protected by ... :

A. 1.5", shield plates.

B. 2.00", shield plates.

C. 1.25", shield plates.

D. 1.125", shield plates.

Protective shield plates shall be a minimum of:

A. 0.062 inch-thick or 1/16" steel.

B. 0.078 inch-thick or 5/64" steel.

C. 0.937 inch-thick or 3/32" steel.

D. 0.109 inch-thick or 7/64" steel.

Protective shield plates shall cover the area of the pipe where the member isbnotched or bored, and shall extend a minimum of:

A. 2 inches above solenplates and belowbtop plates.

B. 2-1/4 inches above sole plates and below top plates.

C. 2-1/2 inches above sole plates and below top plates.

D. 3 inches above sole plates and below top plates.

Components of a plumbing system installed along alleyways, driveways, parking garages or other locations exposednto damage shall be:

A. Protected in an approved manner.

B. Recessed into the wall.

C. Supported.

D. A & B.

Buried piping shall be:

A. Supported every 5 feet.

B. Supported every 10 feet.

C. Supported every 15 feet.

D. Supported throughoutbits entire length.

Where trenches are excavated such that the bottom of the trench forms the bed for the pipes:

A. Solid and continuous load bearing support shall be provided between the joints.

B. Bell holes, hub holes, and coupling holes shall be provided at point where the pipe is joined.

C. Such pipes shall not be supported on blocks to grade.

D. A, B & C are correct.

Where trenches are excavated below the installation level of the pipe such that the bottom of the trench does not form thebbed for the pipe, the tranch shall be backfilled to the installation level of the bottom of the pipe:

A. With clean earth.

B. With sand.

C. Fine grabel.

D. B & C.

When trenches are over-excavated the proper backfill shall be compacted after each placement in:

A. Layers of 3 inches.

B. Layers of 6 inches.

C. Layers of 12 inches.

D. Layers of 18 inches.

Where rock is encountered in teenching, the rock shall be removed to a minimum of:

A. 3 inches below the installation level of the bottom of the pipe with sand tamped in place.

B. 6 inches below the installation level of the bottom of the pipe with sand tamped in place.

C. 12 inches below the installation level of the bottom of the pipe with sand tamped in place.

D. 18 inches below the installation level of the bottom of the pipe with sand tamped in place.

If softbmaterials of poorbload-bearing quality are foundbat the bottom of the trench:

A. A footing shall be installed

B. Pipe shall be humg from slab above.

C. Replace poorbmaterial and install sand.

D. 1/2" rock material to replace poor material.

Trenches installed parallel to footingbshall not extend below the 45-degree bearing plane of the:

A. Footing or wall.

B. Bottom of trench.

C. Length of the trench.

D. Top of the trench.

Hangers anchor and supports shall support the piping and the contentsbof thebpiping, hangers and strapping material shall be of approved material:

A. That will last the life of the structure.

B. And can promote galvanic action.

C. That will not promote twice the designed weight.

D. And must support twice the designed weight.

The maximum horizontal hanger spacing for ABS and PVC plastic piping is:

A. 3 feet.

B. 4 feet.

C. 5 feeet.

D. 6 feet.

The maximum vertical hanger spacing for ABC and PVC with mid- story guide for 2' and smaller:

A 5 feet.

B. 10 feet.

C. 15 feet.

D. 20 feet.

The maximum horizontal hanger spacing fornbrass pipe:

A. 5 feet.

B. 10 feet.

C. 15 feet.

D. 20 feet.