Plumbing - Session 7 Part 3

Where water heaters or hot water storage tanks are installed in locations where leakage of the tanks or connection will cost the damage, the tank tank or water heater shall be installed in galvanized steel pan having a minimum thickness of ... gauge, or other pans approved for such use.

A. 24.

B. 22.

C. 18.

D. 17.

The pan used where water heater or hot water storage tanks shall not be less than ... deep and shall be of sufficient size and shape to receive all dripping or condensate from the tank or water heater.The pan shall drain by an ... waste pipe having a minimum diameter of...:

A. 1.25 inches, indirect,, 3/4inch.

B. 1.50 inches, indirect,, 3/4inch.

C. 2.00 inches, indirect,, 3/4inch.

D. 2.5 inches, indirect,, 3/4inch.

The pan drain termination used for water heaters or hot water storage tanks, the pan drain shall extend full-size and terminate:

A. Directly to a waste fixture properly vented.

B. Over a suitably located indirect waste receptor.

C. Over suitably located floor drain.

D. B & C.

The pan drain termination used for water heaters or hot water storage tanks, the pan drain shall extend full-size and terminate not more:

A. Less than 6 inches above the adjacent ground.

B. More than 24 inches above the adjacent ground.

C. Less than 3/4 inch in pipe size.

D. A, B & C.

On copper fin tube, gas fired domestic hot water heaters, to interrupt the gas supply to the jeater in the event water flow through the coil is interrupted:

A. Check valve shall be installed.

B. Flow switch shall be provided.

C. Gate valve shall be installed.

D. Globe valve shall be installed.

Unfired hot water storage tank shall be:

A. Insulated.

B. Installed in an unheated room.

C. May be installed on the roof.

D. Ventilated.

Unfired hot water storage tanks when insulated shall use a heat loss rating limited to a maximum of ... British thermal units per hour per hour per square foot of external tank:

A. 10.

B. 15.

C. 20.

D. 25.

For purposes of determining heat loss for unfired vessel insulated, the design ambient temperature shall not be higher than:

A. 65*F.

B. 68*F.

C. 70*F.

D. 72*F.

Existing metallic water piping used for electric grounding:

A. Shall not be replaced with nonmetallic pipe or tubing until other approved method of grounding is provided.

B. Shall be replaced with non metallic pipe.

C. Shall be replaced with non metallic pipe or tubing.

D. Does not have to be re-grounded when nonmetallic pipe is installed.

Water supply infrastructure to the building shall be applied for and regulated by the :

A. Dept. of buildings (DOB).

B. Dept. of Environmental Protection (DEP).

C. Fire Dept. (FD).

D. Dept. of Health (DOH).

Dependent on geological and soil conditions and the amount of rainfall, individual water supplies are of the following types:

A. Drilled well or driven well.

B. Dug well or bore well.

C. Cistern.

D. A, B & C.

The pump room or enclosure around a well pump shall be drained and protected from freezing by heating or other approved means. Where pumps are installed in basements, such pumps shall be mounted on a block or shelf not less than:

A. 6".

B. 12".

C. 18".

D. 24".

The minimum water service pipe shall be sized to supply water to the structure in quantities and at the pressures required in this code. The minimum diameter of water service pipe shall be:

!. 1/2".

2. 3/4".

3. 1".

4. 1-1/4".

Water service pipe and building sewer shall be separated by ... of undisturbed or compacted earth: .

1. 5'.

2. 10'.

3. 15'.

4. 20'.

Potable service water pipes shall not be located in, under or above cesspools, septic tanks, septic tank drainage fields or seepage pits and shall be separated by a minimum:

A. 5'.

B. 10'.

C. 15'.

D. 20'.

The design of the water distribution system shall conform to accepted:

A. Plumbing practice.

B. Specification rules.

C. Engineering practice.

D. Field practice.

At points of interconnections between hot and cold water supply piping systems and individual fixtures, appliances or devices, provisions shall be made to:

A. Cover the cold water pipes.

B. Cover the hot water pipes.

C. Install the check valves.

D. Prevent flow between such piping systems.

The water distribution system shall be designed, and pipe sizes shall be selected such that under condition of:

A. Peak demand.

B. Least demand.

C. Average demand.

D. Low demand.

Water distribution system design criteria required capacity at fixture supply pipes outlets the minimum flow rate for a bidet or lavatory:

A. 2 GPM.

B. 3 GPM.

C. 4 GPM.

D. 5 GPM.

Water distribution system design criteria required capacity at fixture supply pipe outlets the minimum flow rate for a shower, temperature controlled shower, service sink or close coupled water closet with tank:

A. 2 GPM.

B. 3 GPM.

C. 4 GPM.

D. 5 GPM.

Water distribution system design criteria require capacity at fixture supply pipe outlets the minimum flow rate for a bathtub, combination fixture and laundry:

A. 2 GPM.

B. 3 GPM.

C. 4 GPM.

D. 5 GPM.

Water distribution system design criteria require capacity at fixture supply pipe outlets the minimum flow rate for a hose bibb sill cock:

A. 2 GPM.

B. 3 GPM.

C. 4 GPM.

D. 5 GPM.

Water distribution system design criteria capacity at fixture supply pipe outlets the minimum flow rate for a water closet, tank, close coupled:

A. 3 GPM.

B. 15 GPM.

C. 35 GPM.

D. 25 GPM.

Water distribution design criteria require capacity at fixture supply pipe outlets the minimum flow rate for a flushometer valve:

A. 6 GPM.

B. 15 GPM.

C. 35 GPM.

D. 25 GPM.

Water distribution design criteria require capacity at fixture supply pipe outlets the minimum flow rate for a flushometer valve blowout water closet:

A. 6 GPM.

B. 15 GPM.

C. 25 GPM.

D. 35 GPM.

Water distribution design criteria require capacity at fixture supply pipe outlets the minimum flow rate for a valve urinal:

A. 6 GPM.

B. 15 GPM.

C. 35 GPM.

D. 25 GPM.

Water distribution design criteria require capacity at fixture supply pipe outlets the minimum flow rate for a residential sink:

A. 2.5 GPM.

B. 2.75 GPM.

C. 0.75 GPM.

D. 1.6 GPM.

Water distribution design criteria require capacity at fixture supply pipe outlets the minimum flow rate for a residential dishwasher:

A. 2.5 G{PM.

B. 2.75 G{PM.

C. 0.75 G{PM.

D. 1.6 G{PM.

Water distribution system design criteria require capacity at fixture supply pipe outlets the minimum flow rate for a drinking fountain:

A. 2.5 GPM.

B. 2.75 GPM.

C. 0.75 GPM.

D. 1.6 GPM.

Water distribution system design criteria require capacity at fixture supply pipe outlets the minimum flow rate for a flushometer tank water closet:

A. 2.5 GPM.

B. 2.75 GPM.

C. 0.75 GPM.

D. 1.6 GPM.

Metric units of measurement are in accordance with the modernized metric system known as International system of Units (SI), one gallon per minute is equal to:

A. 3.785 L/M.

B. 6.895 kPa.

C. 25.4 mm.

D. 1 Bar.

A hand held shower spray is a:

A. Lavatory outlet.

B. Bathtub.outlet.

C. Shower head.

D. Sink outlet.

The minimum flow pressure for bathtub, combination fixture, residential dishwasher, drinking fountain, laundry tray. lavatory, shower, hose bibb sillcock, residential sink, service sink and close coupled tank water closet:

A. 4 psi.

B. 8 psi.

C. 15 psi.

D. 20 psi.

The minimum size of fixture supply pipe shall be as shown in Table 604.5. The fixture supply pipe shall not terminate more than ... from the point of connection to the fixture:

A. 24 inches.

B. 18 inches.

C. 12 inches.

D. 6 inches.

Each fixture supply shall have a:

A. Check valve.

B. Air gap.

C. Stop.valve.

D. Air break.

Between the supply pipe and the fixture, an approved type:

A. Reduced-sized flexible water connector may to be installed.

B. Coupling shall be installed.

C. Compression coupling shall be installed.

D. Packing valve shall be installed.

The minimum size of individual distribution lines utilized in parallel water distribution system shall be 1/2 inch for:

A. Bathtub 60±x32"and larger. single shower head.

B. Combination sink and tray and domestic dishwashers.

C. Hose bibs, kitchen sink. laundry 1,2 or 3 compartments.

D. A, B & C.

Maximum flow rate and consumption for a private lavatory and its fixture fitting:

A. 2.2 GPPM at 60 PSI.

B. 0.25 gallon per metering cycle.

C. 0.5 GPM at 60 PSI.

D. .25 gallon per metering cycle.

On figure 7 connect hot and cold water supply piping to above system.

Show hot water circulation piping.

Show all valves. faucets, etc.

Size house drain, stacks and leaders on figure 8.

What are payroll deductions?

What is Social Security (F.I.C.A.)?

What are Federal Income Taxes?

What is State Income Tax?

What are City Income Taxes?

What is Temporary Disability Insurance?

What is pension?

What is Health Insurance?

What is Welfare Insurance or Supplementary Unemployment Insurance?

What is Union Dues?

What are payroll insurances?

What are business taxes?

What are business insurances?

What is Gross Business Activity?

What is an Capitol Gains?

What is yearly depreciation of Rigid Pipe Threading Machine that has Cost S1,200.00 Estimated Life 10 years Trade in value after : S300.00?

What is overhead?

Assume that you are a partner in a plumbing business. What insurance policies should you carry in order to adequately protect your business?

A plumber estimated a job...

Cost of material was $r1,400,00

Cost of labor was 750.00

Overhead was 17%

Profit was 10%.

What was the selling price of the job?

You have estimated the sale and installation of several gas ranges. The gas ranges list at $125.00. The cost of labor and material for each gas range installation is $10.00 and overhead is 15%. The gas range discount was 30-20-20 and the profit desired is 20%. Show your computation.