Session 13. Flashcards by Pablo tivonyuk

You’re a general contractor and you estimate a job on the of material for $1,000 with discounts of - 10%, - 10% +5%. You subcontract the work out.
The total cost of labor on 60 man hours at $7.24 per hour +25% for your labor.
You must pay a subcontractor 10% of the cost.
You must allow yourself a 15% profit as the general contractor.
Cost of material -
Cost of labor -
Subcontractor cost -
Total profit for general contractor -

Cost of material - 1,000.00x0.9x0.9x1.05=850.00
Cost of labor - 7.24x1.25=543.00
Subcontractor cost - 543.00x1.1=1,532.85.
Total profit for general contractor -1,532.85x0.15=229.93.

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Aflushometer when installed will use less water:
A. Tham a low down tank.
B. If properly adjusted and depending on size installed.
C. When not properly adjusted.
D. When not adjusted.

B. If properly adjusted and depending on size installed.

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3. The type of pipe that can be used on oxygen and nitrous oxide systems is:
A. Wrought iron.
B. Cast iron.
C. Copper tubing.
D. Black steel pipe (threaded).

C. Copper tubing.

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The minimum test pressure for gas piping shall be most nearly:
A. 6” water column.
B. 4 psi.
C. 10 psi.
D. 50% greater than proposed operating pressure.

B. 4 psi.

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5. Escutcheons shall be used for the purpose of:
A. Contraction.
B. Pipe  rest.
C. Rat proofing.
D. Roach proofing.

C. Rat proofing.

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6. All hospitals shall have:
A. Circuit venting.
B. Loop venting.
C. At least one water service.
D. At least two water service.

D. At least two water service.

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7. Septic tank shall be located a minimum distance from a water service of:
A. 2 feet.
B. 5 feet.
C. 10 feet.
D. 15 feet.

C. 10 feet.

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8. Before inspection stars, a 10 foot head of water on plumbing  drainage system shall hold for:
A. 10 minutes.
B. 15 minutes. 
C. 20 minutes.
D. 25 minutes.

B. 15 minutes.

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9. In general the gas pressure in a domestic gas line after it leaves the gas meter is usually:
A. 12" water column.
B. 8" water column.
C. 4" water column.
D. 6" water column.

C. 4” water column.

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10. When brazed joints are made, heat shall be applied to the metal in order that the solder can flow into the space by:
A.Vacuum.
B. Liquification.
C. Oscillation.
D. Capillary attraction.

D. Capillary attraction.

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11. Wiping solder for lead pipes usually has a melting range of most nearly:
A. 150 to 250 deg. F.
B. 251 to 350 deg. F.
C. 360 to 470 deg. F.
D. 475 to 600 deg. F.

C. 360 to 470 deg. F.

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The main objection to the installation of non-siphon trap is:
A. Easily affected by back pressures.
B. More expensive than a regular trap.
C. Not provided with an adequate water seal.
D. Non self-cleaning.

D. Non self-cleaning.

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A lavatory is carelessly installed in that its waste is double trapped before it is connected to the branch waste. In operation the probability is that:
A. Both traps would lose their seal.
B. Only the lower trap would lose its seal.
C. Only the upper trap would lose its seal.
D. The fixture waste may become air bound.

D. The fixture waste may become air bound.

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When the existing adjoining building is higher than the new building, all new vent terminals of the new building shall be located:
A. At least 3 feet above the nearest wall opening of the existing building.
B. At least ten feet from the common lot line.
C. Above the existing building roof line.
D. At least 7 feet above the new building roof level.

B. At least ten feet from the common lot line.

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15.?When applying a test to gas piping under 1/2 psi, after all piping is installed and all outlets capped, the plumber shall apply an air pressure test equal to:
A. A column of water at least 6” in height, for a minimum of thirty minutes.
B. Air pressure at 3 psi, for a minimum of thirty minutes.
C. Above the existing building roof level.
D. At least 7 feet above the new building roof level.

B. Air pressure at 3 psi, for a minimum of thirty minutes.

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16. A sanitary and storm water drainage systems to be water tested in sections. When testing the uppermost section the upper footage of the next lower section which is to be re-tested is:
A. 10 feet.
B. 8 feet.
C. 6 feet.
D. 4 feet.

A. 10 feet.

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17. Application for plumbing permits shall set forth the name and business address of the licensed plumber and evidenced of compliance with the provisions of the:
A. Building code.
B. State Workmen's Compensation Low.
C. Social security law.
D. City income tax law.

B. State Workmen’s Compensation Low.

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A sewage ejector pot and pump shall be installed when any part of the sanitary drainage system is most nearly:
A. Between the crown and centerline of the street sewer.
B. Below the crown of the street sewer.
C. Below the invert of the street sewer.
D. Below the centerline of the street sewer.

B. Below the crown of the street sewer.

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19. The minimum depth below exterior grade that a water service pipe shall be installed is at least:
A. 2 feet.
B. 3 feet.
C. 3-1/2 feet.
D. 6 feet.

C. 3-1/2 feet.

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As a contracting master plumber you have improperly followed the department of buildings procedure and have made an appointment for a test of gas piping. Upon (residential apartment house) the inspectors arrival on the job site he find all piping installed (exposed), connections properly made to the gas ranges, an approved pressure imposing device and analog gauge. The inspector should:
A. Go ahead with the air pressure test and make sure that a pressure equal to a column of mercury 6’’’ is held for 10 minutes.
B. Go ahead with an air pressure test and make sure that a pressure equal to 3 psig for a minimum f 30 minutes.
C. Go ahead with an air pressure test and make sure that a pressure equal to 50 psig for a minimum of 30 minutes.
D. Advise the contracting master plumber that he has not complied with the conditions of the international fuel gas Code of 2003 :test of gas piping” and suggest that he make the necessary changes before requesting another test.

D. Advise the contracting master plumber that he has not complied with the conditions of the international fuel gas Code of 2003 :test of gas piping” and suggest that he make the necessary changes before requesting another test.

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A pressure relief valve should be placed on:
A. The highest point of the line.
B. Hot water line leaving the hot water tank.
C. Cold water line entering the hot water tank.
D. The top of the hot water tank.

D. The top of the hot water tank.

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The type of water closet that cannot be installed under any condition is:
A. Blow out type.
B. Wash-down bowl type.
C. Water closets having a concealed trap seal.
D. A siphon jet water closet.

C. Water closets having a concealed trap seal.

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23. Linings of flush tanks constructed of wood shall be:
A. Cement lined.
B. 12 oz. copper.
C. Lead.
D. 10 oz. copper.

D. 10 oz. copper.

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24. The proper flux to use for tinning a brass ferrule is:
A. Rosin.
B. Killed acid.
C. Tallow.
D. Soldering paste.

A. Rosin.

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``` 25. Chipping knives are used for: A. Cutting sheet metal. B. Cutting sheet lead. C. Cutting lead waste pipe. D. Cutting uneven edges of wiped joints. ```

B. Cutting sheet lead.

``` 26. Which one should be installed on the supply to showers: A. Back water valve. B. Flap valve. C. Safety valve. D. Thermostatic mixing valve. ```

D. Thermostatic mixing valve.

``` 27. A public sanitary or combined sewer shall be deemed available to a one- and two-family dwelling if a property line of such dwelling is within: A. 50 feet. B. 100 feet. C. 250 feet. D. 500 feet. ```

B. 100 feet.

``` 28. Vitrified clay pipe may be used for: A. House drains. B. Leaching cesspools. C. House sewers, residential or commercial. D. Not permitted. ```

C. House sewers, residential or commercial.

29. The controlling valve of the water supply to a building shall be: A. Globe valve, 150 psi. B. Gate valves of any size, especially over 2-inch. C. Full port ball valves over 2-inch. D. Valve with a by-pass.

B. Gate valves of any size, especially over 2-inch.

``` 30. Match the term on the right with the appropriate term on the left: A. Caliber - 1. Base of stack. B. C.O. - 2. Y outlet. C. Pitch - 3. Hanger. D. Spur - 4. Bore. E. Mercury - 5. Air test. 6. Grade. 7. Water seal. 8. Roof drain. ```

``` A. Caliber - 4. Bore. B. C.O. - 1. Base of stack. C. Pitch - 6. Grade. D. Spur - 2. Y outlet. E. Mercury - 5. Air test. ```

31. One of the following gas distribution systems which is in accordance with the code is: A. A five inch gas distribution piping with screw fittings. B. Butt welded gas distribution piping designed to operate at 3.5 psig. C. 3 inch gas distribution piping system which also serves as an electrical ground for a domestic heating system motor. D. 2" gas distribution piping installed 15 feet below grade.

B. Butt welded gas distribution piping designed to operate at 3.5 psig.

32. Where city water is used as an auxiliary supply to a roof or suction tank fed by wells or salt water the one which is not correct is: A. The tank must be an open one. B. The city water supply must be controlled by a ball cock. C. The tank must be made of wood. D. The ball cock shall discharge at least 4 inches above the top of thew overflow.

C. The tank must be made of wood.

``` 33. When slight changes in direction are to be made in plumbing system, the best type of fittings to use are: A. Silver solder. B. Bell and spigot. C. Flanged. D. Screwed. ```

B. Bell and spigot.

``` 34. In accordance with DEdP water rule 20-3- (s), each new or repaired service pipe shall be subjected to a water test, when the greatest street pressure is 52 psi, the water service piping shall be undergo a pressure of: A. 104 psi. B. 52 psi. C. 65 psi. D. 78 psi. ```

B. 52 psi.

``` 35. A pump cost $600.00 after being discounted at 15%, 12% and 8%. The list price of the pump was most nearly: A. $413.00 B. $835.00 C. $923.00 D. $875.00 ```

D. $875.00 | 600/0.85/0.88/ 0.92=$875.00

``` 36. The type of water meter to be installed when there are wide pressure fluctuations: A. Displacement. B. Turbine . C. Compound. D. Single jet. ```

C. Compound.

``` 37. A pump has a capacity of 750 GPM. The highest point from the centerline of the pump discharge to the highest fixture is 30 feet, there is an equivalent of 60 ft. loss of head due to pipe friction. The manufacturer states the pump is 83% efficient. The pump brake horsepower is most nearly required is: A. 5 H.P. B. 10 H.P. C. 15 H.P. D. 20 H.P. ```

D. 20 H.P.

``` 38. The minimum spacing interval between 1-1/2 inch corporation stops shall be: A. 6 inches. B. 12 inches. C. 18 inches. D. 24 inches. ```

D. 24 inches.

39. When a pump is directly connected to the street main, there a low-pressure cutoff shall (emergency shutoff) be installed on all booster pumps in a water pressure booster system, to prevent creation of a vacuum or negative pressure on the suction side of the pumps when a positive pressure of: A. 10 psi or less occurs on the suction side of the pump. B. 7 psi or less occurs on the suction side of the pump. C. 5 psi or less occurs on the suction side of the pump. D. 3 psi or less occurs on the suction side of the pump.

A. 10 psi or less occurs on the suction side of the pump.

``` 40. A toilet tank that is 18 inches long, 5 inches wide and 14 inches high contains most nearly: A. 4-1/2 gallons. B. 5-1/2 gallons. C. 6-1/4 gallons. D. 7-1/4 gallons. ```

B. 5-1/2 gallons.

``` 41. When color coding piping for medical gases are used, the marking color for nitrous oxide is: A. Yellow with black letters. B. Blue with white letters. C. B.ack with white letters. D. Green with white letters. ```

B. Blue with white letters.

``` 42. When color coding piping for medical gases are used, the marking color for oxygen is: A. Yellow with black letters. B. Blue with white letters. C. B.ack with white letters. D. Green with white letters. ```

D. Green with white letters.

``` 43. When color coding piping for medical gases are used, the marking color for nitrogen is: A. Yellow with black letters. B. Blue with white letters. C. B.ack with white letters. D. Green with white letters. ```

C. Black with white letters.

``` 44. When color coding piping for medical gases are used, the marking color for medical air is: A. Yellow with black letters. B. Blue with white letters. C. B.ack with white letters. D. Green with white letters. ```

C. B.ack with white letters.

``` 45. When color coding piping for medical gases are used, the marking color for vacuum is: A. Black with white letters. B. Green with white letters. C. Blue with white letters. D. White with black letters. ```

D. White with black letters.

``` 46. Content for all medical gas cylinders shall be identified by: A. Color. B. Letters stamped into the cylinder. C. Blue with white letters. D. Size. ```

A. Color.

``` 47. After the plumbing fixtures have been set and their traps filled with water, the entire drainage system shall be verified as to materials and shall be tested and proven gas tight by a: A. Smoke test. B. Gas test. C. Peppermint test. C A & B. ```

A. Smoke test.

``` 48. When testing a building house sewer (gravity sewer test) it shall be tested by inserting a test plug at the point of connection with the street sewer before such connections is made. The building house sewer shall then be filled with water under a head of at least: A. 10 feet and hold for 15 minutes. B. 15 feet and hold for 15 minutes. C. 20 feet and hold for 15 minutes. D. 25 feet and hold for 15 minutes. ```

A. 10 feet and hold for 15 minutes.

49. An air test for drainage and venting shall be made by forcing air into the: A. System until there is a uniform gauge pressure of 5 psi for 15 minutes. B. System until there is a uniform gauge pressure of 5 psi for 10 minutes. C. System until there is a uniform gauge pressure of 10 psi for 15 minutes. D. System until there is a uniform gauge pressure of 10 psi for 10 minutes.

A. System until there is a uniform gauge pressure of 5 psi for 15 minutes.

``` 50. A water test shall be applied to all drainage and vent systems in its entirety or in section after rough piping has been installed. If applied to the entire system, all openings in the piping system, except the highest opening, shall be tightly closed and the system filled to the point of overflow.If the system is tested in sections, each opening, except the highest opening of the section under test, shall be tightly plugged and each section filled with water. No section shall be tested with less than a: A. 5 foot of water. B. 15 foot of water. C. 10 foot of water. D. 20 foot of water. ```

C. 10 foot of water.

``` 51. Compute the area in figure 37. A. 10,000 sq ft. B. 12,204 sq.ft. C. 12,325 sq.ft. D. 12,500 sq.ft. ```

``` B. 12,204 sq.ft. 48'+54"+48"=150' 150x90=13,500 sq, ft,' 24x54=1296 sq,ft, 13,500-1,296=12,204 sq.ft. ```

``` 52. Brazing alloys composition using BCuP for medical gases are required. What is Cu a standard for: A. Brazing. B. Copper. C. Phosphorous. D. Silver. ```

B. Copper.

``` 53. Brazing alloys composition using BCuP for medical gases are required, what is P a standard for: A. Brazing. B. Copper. C. Phosphorus. D. Silver. ```

C. Phosphorus.

``` 54. Brazing alloys composition using BAG for medical gases are required, what is AG a standard for: A. Brazing. B. Copper. C. Phosphorus. D. Silver. ```

D. Silver.

55. Which fixture has the most fixture unit value: A. Water closet, flushometer tank, public or private. B. Water closet, private (1.6 gpm). C. Water closet, private (flushing greater 1.6 gpf). D. Water closet, public (flushing greater than 1 gpf).

D. Water closet, public (flushing greater than 1 gpf).

``` 56. There is a 7000 gallon roof tank installed for domestic water, supplied by a 200 gpm pump.The tank discharges to one half its capacity before the pump starts. It starts off at full capacity. The water use of the building is 100 gpm. In a day. the pump will run most nearly: A. 8 hrs. 25 min. B. 12 hrs. C. 10 hrs. 33 min. D. 6 hrs.55min. ```

B. 12 hrs. 100 gpm x 60 min. x 24 hrs=144,000 gal/per /day 144,000/200 gal/per/min = 720 min 720/60 min=12 hrs.

``` 7. On a pumping unit, the total static and pressure losses due to friction are equal to 105 psi.Two hundred gallons per minute of water are pumped during peak load period of the day.What horse power is required to be produced by the pumping unit which draws water from a surge tank at the same level as the pump, most nearly: A. 5 H.P.. B. 8.5 H.P. C. 12.13 H.P. D. 15.25 H.P. ```

C. 12.13 H.P. 2,31'x105psi=242.5 total head in feet. H.P.= G.P.M.xTotal head in feet/4000 = 200x242.55/4000=12.13 H.P.

``` 58. When more than one building house drain discharges into a private sewer within the property line, the sewer must be designed on a design basis and the slope of the sewer shall be predicated on the size selected, but in no case shall the slope be less than that required to produce a velocity in the sewer of less then: A. 2 fps. B. 3 fps. C. 4 fps. D. 5 fps. ```

B. 3 fps.

59. A heel or side inlet quarter bend when used as a vent connection in a horizontal position is: A. Permitted. B. Okay if elevated to a 22-1/2" off the horizontal plane. C. Prohibited. D. Permitted with the approval from the inspector.

C. Prohibited.

60. A rectangular tank 7'x4'x3' and a cylindrical tank 4'x7'. Which tank has the greater volume: A. The cylinder is greater by 4 cu. ft. B. The cylinder is greater by 8 cu. ft. C. The rectangular tank is greater by 5 cu. ft. D. The rectangular tank by 1 cu. ft.

A. The cylinder is greater by 4 cu. ft Vc=0.7854xDxDXL=0.7854x4x4x7=87.96 cu.ft. Vr=7x4x3=84 cu. ft. 88-84=4 cu ft.

``` 61. Gas piping cannot be supported by: A. Pipe hooks, metal pipe straps. B. Bands, brackets. C. Hangers. D. Other pipes. ```

D. Other pipes.

``` 62. Gas piping shall be supported at intervals not exceeding the spacing specified in table 415.1 of the fuel gas code using steel pipe horizontally: A. 1/2" - 6'. B. 3/4" - 8". C. 1-1/4" or larger - 10'. D. A, B & C. ```

D. A, B & C.

``` 63. Symbol for hot water line: A. ---------- - - ---------- B. --------------------------- C. --------- - - - ---------- D. -------- - - - - --------- ```

A. ---------- - - ----------

``` 64. Symbol of cold water pipe line: A. -------------- - -------------- B. -------------- - - ----------- C.-------------- - - - ------------ D. ------------------------------- ```

A. -------------- - --------------

``` 65. How would you describe this fitting: 2" | 6"-------------------------------- 4" A. 6"x2"x4". B. 4"x6"x2". C. 6"x4"x2". D. 2"x4"x6". ```

C. 6"x4"x2".

``` 66. The maximum flow rarte and consumption for a private lavatory is: A. 2.5 gpm at 80 psi. B. 2.2 gpm at 60 psi. C. 3 gpm at 60 psi. D. 1.6 gallon per flushing cycle. ```

B. 2.2 gpm at 60 psi.

``` 67. The most effective vent against back-pressure: A. Circuit. B. Loop. C. Continuous. D. Branch. ```

C. Continuous.

``` 68. A vent stack is to be installed so it does not receive wash of an adjoining waste line: A. Not mentioned in the old code. B. Legal. C. Illegal. D. B & C. ```

B. Legal.

``` 69. A system that has hot water recirculation with a branch that does not have circulation. What is the maximum length the branch may be installed before it needs a hot water circulation return pipe: A. 50 feet. B. 100 feet. C. 20 feet. D. 25 feet. ```

C. 20 feet.

``` 70. The minimum distance between branch interval connection with in which branch horizontal branches from one floor or story of a structure are connected to the stack: A. 2 feet. B. 4 feet. C. 6 feet. D. 8 feet. ```

D. 8 feet.

``` 71. You need an adapter coupling to make a joint: A. Cast iron to vitrified clay. B. Wrought iron to brass. C. Cast iron to brass. D. Asbestos cement to metal pipe. ```

D. Asbestos cement to metal pipe.

``` 72. What should be the type of flame used when brazing or welding with an oxyacetylene flame: A. Neutral. B. Oxidizing. C. Reducing. D. Carbonizing. ```

A. Neutral.

``` 73. N.T.P. stands for: A. No pipe tongs. B. National party reps. C. National pipe threads. D. Near pipe threads. ```

C. National pipe threads.

``` 74. Why is teflon used on a sprinkler head: A. Lubrication. B. To prevent leaks. C. To prevent rust. D. For better flow. ```

A. Lubrication.

``` 75. If you have a steam and wish to feed back to the boiler where do you connect to: A. Steam drum. B. Water drum. C. Condensate return. D. Top of boiler. ```

C. Condensate return.

``` 76. The fresh air inlet is to be installed within four feet of: A. Footing of the building. B. House side of the house trap. C. Sewer side of the house trap. D. Centerline of the house trap. ```

B. House side of the house trap.

``` 77. The maximum distance of a house traps hand-holes that shall be provided with clean-outs at the cellar floor of finish grade is:df A. 12 inches. B. 18 inches. C. 24 inches. D. 30 inches. ```

B. 18 inches.

``` 78. Gas testing of a gas pipe with a reading of 5 inches of mercury you must test at: A. 30 psi, 30 min. B. 50 psi, 1 hr. C. 100 psi, 1 hr. D. 6" of mercury , 30 minutes. ```

B. 50 psi, 1 hr.

79. On the drawing the sterilizer vent was connected on the last floor with a tee to a stack thru the roof: A. All vents may connect at this point. B. Bed pan vents may connect to the sterilizer vent. C. Sterilizer vents must connect independently through the roof. D. Only sterilizer and clear water waste vents may interchange connections.

C. Sterilizer vents must connect independently through the roof.

80. What is the best answer about storm water clean-outs requirements: A. Building sewers shall be provided with clean-outs located not more than 100 feet apart measured from the upstream entrance of the clean-out. B. All horizontal drains shall be provided with clean-outs located not more than 100 feet apart. C. For building sewers 8 inches and larger, manholes shall be provided and located not more than 200 feet from the junction of the building drain and building sewer, at each change in direction and at intervals not more than 400 feet apart. D. A, B & C.

D. A, B & C.

``` 81. It take 51% of an hour to connect each underground fitting, the labor rate is $32.00 per hour. When counting how many underground fittings you have so you can estimate the cost, you found that you have 12 fittings. The cost is: A. $120.50 B. $130.75 C. $195.84 D. $204.90 ```

C. $195.84 | Cost = percentage of time x fittings x labor = 0.51x12x32.00 = $195.84

``` 82. How many water domestic water mains are required for hospitals: A. One. B. Two. C. Three. D. Four. ```

B. Two.

83. Upon completion of a section of or the entire water supply system, the system, or portion completed, shall be tested and approved tight under pressure of ... psi above its normal working pressure but not less than ... psi: A. At least 25% greater than the working pressure under which it is to be used. B. "A" above and 50 psi. C. 50, 150. D. 25, 50.

C. 50, 150.

``` 84. Direct cost for plumbing job is $2,50.00 for labor and material. The supplementary costs are as follows: Overhead - 6.5% Permits - $150.00 Overhead cost on job - 2% Contingency - 3% Profit - 10%. The permit costs are $75.00 the balance is transferred to contingency. How much is the contingency cost in dollars: A. $50.00 B. $75.00 C. $125.00 D. $150.00 ```

D. $150.00 Contingency = $2,500.00x0.03% = $75.00 Balance of the permit cost = 150 - 75 = 75. Contingency cost in dollars = 75 +75 =150.

``` 85. Direct cost for plumbing job is $2,50.00 for labor and material. The supplementary costs are as follows: Overhead - 6.5% Permits - $75.00 Overhead cost on job - 2% Contingency - $150.00 Profit - 10%. What is overall cost of the project: A. $2,937,50 B. $2,837,50 C. $2,737.50 D. $2,637.50 ```

A. $2,937.50 Overall cost of project = Overhead + Permits + Overhead cost on job + contingency + Direct cost, labor and material. Overhead = $2,500x0.065=162.50 Overhead cost on job= $2.500x0.02=$50.00 Overall cost of project = 162.5 + 75 + 50 + 150 + 2,500 = 2,937,50

``` 86. What is the profit if overall cost of the project is $2,937.50 and profit is 10%? A. $393.75 B. $293.75 C. $303.75 D. $403.75 ```

B. $293.75 | P = 2,937.50 x 0.10 = 293.75

``` 87. A gallon of water changed temperature from 150*F to 170*F. How many BTU's are required: A. 500 B. 750 C. 1000 Df. 1250. ```

C. 1000 170-50=120 120x8,33=1000 Btu's.

``` 88. The outlet pipe size from a P-trap. which has the largest size for fixture used: A. Bathtub. B. Floor mounted urinal. C. Gang shower. D. Double laundry tray. ```

C. Gang shower.

``` 89. The type of joint not permissible in medical gas is: A. Brazed. B. Threaded brass. C. Flanged. D. High temperature soft solder. ```

D. High temperature soft solder.

``` 90. What is used and installed in a plumbing system to prevent odor and gases from entering into the house drain from the house sewer: A. Fixture trap. B. Venting system. C. F.A.I. D. House trap. ```

D. House trap.

41. PVC piping are allowed in soil, waste and venting systems in: A. Residential one and two family homes. B. Residential buildings five stories or less. C. Residential buildings three stories or less. D. In all buildings used for residential purposes.

B. Residential buildings five stories or less.

``` 92. To what depth in rock excavation the material removed below the grade line of the trench and then backfilled and tamped to grade with sand to provide uniform firm foundation for the pipe: A. 1 inch to 3 inch. B. 2 inches to 4 inches. C. 3 inches to 5 inches. D. Minimum of 3 inches. ```

D. Minimum of 3 inches.

93. Upon completion of a section of a water system or of the entire water system, the completed section or system shall be verified as to materials, and shall be tested and proven tight under a water pressure of at least: A. Proved tight under a water pressure of 50 psi. B. Proved tight under a water pressure of 50 psi above its normal working pressure. C. Proved tight under a water pressure of 50 psi above its normal working pressure but not less than 150 psi. D. 25% greater than the working pressure under which is used.

C. Proved tight under a water pressure of 50 psi above its normal working pressure but not less than 150 psi.

``` 94. Hot water in hospitals to patient's showers, therapeutic equipment, and continuous bath shall be provided with control valves automatically regulating the temperature of the water supply to the fixture exceeds: A. 110*F. B. 115*F. C. 120*F. D. 140*F. ```

A. 110*F.

95. Each sterilizer shall be provided with an individual and separate indirect waste and with an air break having: A. A diameter at least equal that of the tail piece. B. A diameter at least twice that of the tail piece. C. A 1 inch air break. D. A 3/4 inch air break.

B. A diameter at least twice that of the tail piece.

``` 96. A grease interceptor has a 60 gpm maximum capacity of: A. 120 lbs. B. 100 lbs. C. 80 lbs. D. 60 lbs. ```

A. 120 lbs.

``` 97. The best tool to remove the burs from the steel pipe when not using a power tool is: A. Spiral reamer. B. 3/4" flat file. C. Chipping iron. D. Wire brush. ```

A. Spiral reamer.

``` 98. An undersize waste pipe create what kind of condition: A. Stoppages. B. No problem. C. Faster drainage. D. Better flow. ```

A. Stoppages.

99. Plumbing work: The installation, maintenance, repair, modification, extension or alteration of plumbing, standpipe where a sprinkler is not connected or is not now being connected, domestic water, connection to the domestic water, combination domestic water and reserve standpipe supply tank up to and including the roof tank check valve, gas piping or any piping system referred to in the New York city plumbing code, and/or up to: A. 30 sprinkler heads off the domestic water in any building. B. 25 sprinkler heads off the domestic water in any building. C. 20 sprinkler heads off the domestic water in any building. D. 15 sprinkler heads off the domestic water in any building.

A. 30 sprinkler heads off the domestic water in any building.

100. The symbol on figure 38 describe best: A. An upright fire sprinkler head. B. A pendent fire sprinkler head. C. A riser in the center of the pipeline. D. A sidewall fire sprinkler head.

B. A pendent fire sprinkler head.

``` 101. Figure 39 represents a: A. Storm drain, rainwater drain. B. Subsoil drain. C. Soil, waste or sanitary sewer. D. Vent. ```

A. Storm drain, rainwater drain.

``` 102. Figure 40 represents a: A. Acid waste. B. Vent. C. Acid vent. D. Indirect drain. ```

B. Vent.

``` 103. Figure 41 represents a: A. Pump discharge line. B. Hot water supply. C. Cold water. D. Hot water re-ciculating. ```

C. Cold water.

``` 104. Figure 42 represent a: A. Cold water. B. Hot water re-circulating. C. Vent. D. Hot water supply. ```

D. Hot water supply.

``` 105. Figure 43 represents a: A. Cold water. B. Vent. C. Hot water recirculating. D. Hot water supply. ```

C. Hot water recirculating.

``` 106. Figure 44 represent a: A. Fuel oil supply. B. Fire protection water supply. C. Fire return. D. Fuel oil return. ```

B. Fire protection water supply.

``` 107. Figure 45 represents a:: A. Low-pressure steam supply. B. Low-pressure condensate. C. Medium-pressure steam supply. D. High pressure condensate. ```

A. Low-pressure steam supply.

``` 108. Figure 47 represents a: A. Medium pressure steam supply. B. Medium-pressure condensate. C. High-pressure steam supply. D. Low-pressure condensate. ```

C. High-pressure steam supply.

``` 110, /Figure 48 represents a: A. Check valve. B. Plug valve. C. Gas cock. D. Gate valve. ```

D. Gate valve.

``` 111. Figure 49 represents a: A. Gate valve . B. Globe valve. C. Ball valve. D. Butterfly valve. ```

B. Globe valve.

``` 112. Figure 50 represents a: A. Gate valve . B. Globe valve. C. Ball valve. D. Butterfly valve. ```

C. Ball valve.

``` 113. Figure 51 represents a: A. Gate valve . B. Globe valve. C. Ball valve. D. Gas cock, gas stop. ```

D. Gas cock, gas stop.

``` 114. Figure 52 represents a: A. Gate valve soldered. B. Check valve welded. C. Globe valve screwed. D. Butterfly valve bell and spigot. ```

B. Check valve welded.

``` 115. Figure 53 represents a: A. Butterfly valve. B. Grease separator. C. Balancing valve. D. Plug valve. ```

B. Grease separator.

``` 116. Figure 54 represents a: A. Ball valve. B. Butterfly valve. C. Gas cock. D. Angle valve. ```

D. Angle valve.

``` 117. Figure 55 represents a: A. Union (screwed). B. Union (flanged). C. Tee. D. Concentric reducer. ```

B. Union (flanged).

``` 118. Figure 56 represents a: A. Steam trap (all types). B. Flor drain with P-trap. C. Yard clean-out. D. Clean-out to grade. ```

B. Flor drain with P-trap.

``` 119. Figure 57 represents a: A. Vacuum. B. Medical compressed air. C. laboratory compressed air. D. (Heating) hot water supply. ```

A. Vacuum.

``` 120. Figure 58 represents a: A. High-pressure steam. B. Medium-pressure steam. C. High-pressure return. D. Medium pressure return. ```

C. High-pressure return.

``` 121. Figure 59 represents a: A. Medium-pressure steam. B. Medium pressure return. C. High pressure steam. D. High pressure return. ```

B. Medium pressure return.

``` 122. Figurer 60 represents a: A. High-pressure steam. B. High pressure return. C. Medium-pressure steam. D. Low-pressure steam. ```

D. Low-pressure steam.

``` 123. Figure 61 represents a: A. Fire line. B. Vent line. C. Soil line. D. Waste line. ```

A. Fire line.

``` 124. Figure 62 represents a: A. Indicating butterfly valve. B. Ball valve. C. O..S. & Y. D. Flagg valve. ```

A. Indicating butterfly valve.

``` 125. Figure 63 represents a: A. Butterfly valve. B. Safety valve. C. Gate valve. D. Globe valve. ```

B. Safety valve.

``` 126. Figure 64 represents a: A. Spring check valve screwed. B. Vertical check valve screwed. C. Swing check valve screwed. D. Ball valve screwed. ```

C. Swing check valve screwed.

``` 127. Figure 65 represents a: A. Spring check valve. B. Vertical check valve. C. Swing check valve. D. Ball check valve. ```

D. Ball check valve.

``` 128. Figure 66 represents a: A. Safety valve. B. Spring check valve. C. Flagg butterfly valve. D. Quick opening valve. ```

D. Quick opening valve.

``` 129. Figure 67 represents a: A. Flagg valve. B. Quick opening valve. C. Key-operated valve. D. Pressure operated valve. ```

C. Key-operated valve.

``` 130. Figure 68 represents a: A. Air line valve. B. Manual air vent. C. Pressure relief valve. D. Angle check valve. ```

C. Pressure relief valve.

``` 131. Figure 69 represents a: A. Bathtub. B. Sink. C. Stall shower. D. Water fountain. ```

C. Stall shower.

``` 132. Figure 70 represents a: A. Drinking fountain. B. Bidet. C. Lavatory. D. Sink. ```

B. Bidet.

``` 133. Figure 71 represents a: A. Garage drain. B. Meter. C. Floor drain with backwater valve. D. Oil separator. ```

C. Floor drain with backwater valve.

``` 134. Figure 72 represents a: A. Flanged joint. B. Screwed joint. C. Spigot joint. D. Weld joint. ```

A. Flanged joint.

``` 135. Figure 73 represents a: A. Flanged joint. B. Screwed joint. C. Spigot joint. D. Weld joint. ```

B. Screwed joint.

``` 136. Figure 74 represents a: A. Flanged joint. B. Screwed joint. C. Spigot joint. D. Weld joint. ```

C. Spigot joint.

``` 137. Figure 75 represents a: A. Flanged joint. B. Screwed joint. C. Spigot joint. D. Weld joint. ```

D. Weld joint.

``` 138. Figure 75 represents a: A. Screwed joint. B. Spigot joint. C. Weld joint. D. Soldered joint. ```

D. Soldered joint.

``` 145. Figure 77 represents a: A. Reducing screwed 90* elbow. B. Reducing flanged 90* elbow. C. Reducing welded 90* elbow. D. Reducing soldered 90* elbow. ```

A. Reducing screwed 90* elbow.

``` 146. Figure 78 represents a: A. Soldered tee outlet down. B. Welded tee outlet down. C. Cross tee welded down. D. Side outlet tee welded down. ```

B. Welded tee outlet down.

``` 147. Figure 79 represents a: A. Free standing Siamese connection. B. Wall outlet Siamese connection. C. Double sprinkler outlet on the line. D. Double water main to one outlet. ```

B. Wall outlet Siamese connection.

``` 148. Figure 80 represents a A. Gate valve. B. Globe valve. C. O.S. & Y. D. Welded valve. ```

C. O.S. & Y.

``` 149. Figure 81 represents a: A. Concentric screwed reducer. B. Eccentric screwed reducer. C. Reducer. D. Lateral. ```

B. Eccentric screwed reducer.

``` 150. Figure 82 represents a: A. Lateral. B. Wye. C. None of the above. D. A & B. ```

D. A & B.

``` 139. Figure 83 represents a: A. Welded tee-outlet down. B. Welded tee-outlet up. C. Soldered tee-outlet down. D. Soldered tee-outlet up. ```

A. Welded tee-outlet down.

``` 140. Figure 84 represents a: A. Screwed expansion joint. B. Flanged reducer. C. welded sleeve. D. Soldered bushing. ```

A. Screwed expansion joint.

``` 141. Figure 85 represents a: A. Short turn sweep. B. Long radius flanged elbow. C. Long radius screwed elbow. D. Left and right flanged elbow. ```

B. Long radius flanged elbow.

``` 142. Figure 86 represents a: A. Short turn sweep (C.I.). B. Long turn sweep (C.I.). C. Long radius soldered 90* elbow. D. 90* solvent cement elbow. ```

D. 90* solvent cement elbow.

143. The following abbreviation ASTM refers to the organization: A. United States of America Standard Institute. B. American National Standard Institute. C. American Society for Testing Materials. D. American Society for Teamsters.

C. American Society for Testing Materials.

144. Fill in the number at right of the abbreviation which corresponds to the names of the organizations: 1. United States of America Standards Institute. 2. American National Standard Institute. 3. Commercial Standards. 4. American Water Work Association. 5.. Federal Specification. 6. American Society of Mechanical Engineers. 7. American Society for Testing Material. 8. Cast Iron Soil Pipe Institute. 9. Americans with Disabilities Act. 10. National Fire Protection Association. ASTM - ASME - AWWA - CISPI - ADA - FS - USASI - NFPA - ANSI - CS -

``` ASTM - 7 ASME - 6 AWWA - 4 CISPI - 8 ADA -9 FS - 5 USASI - 1 NFPA - 10 ANSI - 2 CS - 3 ```

151. Find total fixture unit and fill up table on figure 88 for piping diagram on figure 87,

See figure 89.

Session 13. Flashcards

(150 cards)