Test 137

IPC Plumbing Exam

Name: ________________________________________________________________________

Date: _________________________

Score: _________________________

Carefully read each question and then circle the letter of the best answer.

1. Building sewers must be provided with cleanouts located not more than _____ feet apart

measured from the upstream entrance of the cleanout.

a. 100

b. 200

c. 75

d. 400

2. Solvent cement for PVC plastic pipe shall conform to the following except____.

a. is permitted to be used both, above and below ground

b. must be used with a primer that conforms to ASTM F 656

c. must be applied only to the male portion of the connection

d. shall not be purple

3. Where rock is encountered in trenching, the rock shall be removed to a minimum of _____

inches below the installation level of the bottom of the pipe.

a. 3

b. 4

c. 5

d. 6

4. The background color of pipe identification for a 2 inch pipe shall be _____ inches.

a. 6

b. 8

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c. 12

d. 24

5. The minimum size of a dry vent connected to a wet vent discharging 5 dfu is_____.

a. 1-1/2

b. 2

c. 2-1/2

d. 3

6. Shower linings shall turn up on all sides at least ____ inches above the finished threshold.

a. 1

b. 1.5

c. 2

d. 2.25

7. Horizontal branches shall connect to the bases of stacks at a point located not less than ______

times the diameter of the drainage stack downstream form the stack.

a. 10

b. 5

c. 7

d. 8

8. The following types of water pipe joints and connections are prohibited except______.

a. cement joints

b. solvent-cement between different types of plastic

c. solders joints

d. saddle-type fittings

9. The capacity of a grease trap connected to an appliance discharging 10 gpm shall be

minimum ____pounds.

a. 12

b. 18

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c. 20

d. 24

10. A vent terminal shall not be located closer than _____ feet horizontally to an openable window.

a. 2

b. 4

c. 6

d. 10

11. A branch vent, 50 feet in developed length, serving a 3" drain, must be at least __inches in

diameter.

a. 1-1/2

b. 2

c. 2-1/2

d. 3

12. Bases of stacks may not be supported by ______.

a. wood bracing

b. concrete

c. Brick laid in cement mortar

d. Metal brackets attached to the building

13. The center to center distance between water closets and urinals shall not be closer than ___

inches.

a. 30

b. 36

c. 32

d. 42

14. An air admittance valve may not be used to terminate a______.

a. stack vent

b. individual vent

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c. branch vent

d. circuit vent

15. Plumbing appliances are _____.

a. required to be third party certified

b. required to be third party tested

c. not required to be third party certified

d. not required to be third party tested

16. Grab bar allowable stresses shall not be exceeded for materials used where a vertical or

horizontal force of ______ pounds is applied at any point on the grab bar, fastener mounting

device, or supporting structure.

a. 150

b. 175

c. 200

d. 250

17. The minimum diameter of a floor drain shall be ___inches.

a. 1-1/4

b. 1-1/2

c. 2

d. 3

18. A factory bathroom with 2 water closets (1.6 gpf), 3 urinals (1gpf), 3 lavatories and a floor drain

has how many drainage fixture units

a. 25

b. 19

c. 30

d. 31

19. The vertical distance from the fixture outlet to the trap weir shall not exceed ___inches.

a. 8

b. 12

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c. 18

d. 24

20. The water connection to an automatic clothes washer shall be protected by ______.

a. an air gap built into the machine

b. a backflow preventer

c. either a or b

d. b only

21. The minimum vent size of a sewage pump sump with a pump capacity of 50 gpm and a total

developed length of 80 feet is ____inches.

a. 1-1/4

b. 1-1/2

c. 2

d. 2-1/2

22. At a velocity of 8 feet per second, a manifold serving a demand of 12 gpm must have a

minimum diameter of______ inches.

a. 1/2

b. 3/4

c. 1

d. 1-1/4

23. Every dry vent connecting to a horizontal drain shall connect_____.

a. on top of the horizontal drain pipe

b. above the centerline of a horizontal drain line

c. below the centerline of a horizontal drain line

d. on the bottom of the horizontal drain line

24. Whirlpool pumps shall be installed _____.

a. in an enclosure

b. below the water line

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c. even with the bottom of tub

d. above the trap weir

25. Air admittance valves shall conform to _______.

a. ASTM 941

b. ASTM 1020-L

c. NSF 64

d. ASSE 1051

26. A barometric loop may be used as a backflow preventer for ____ liquids.

a. low hazard

b. high hazard

c. either a or b

d. neither a or b

27. For water distribution pipe, a standard for galvanized steel pipe is_______.

a. ASTM B43

b. ASTM B 75

c. ASTM A 53

d. ASTM F 876

28. The vertical distance from a fixture drain to the inlet of a grease interceptor used as a trap shall

not exceed _____ inches.

a. 12

b. 18

c. 24

d. 30

29. The minimum depth of a trap seal shall be____.

a. 1"

b. 2"

c. 3"

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d. 4"

30. Water above a temperature of _____ degrees F shall not be discharges into any part of a

drainage system.

a. 110 G

b. 120

c. 140

d. 160

31. Water heaters installed in attics shall have a level service space at least 30 inches wide and

_____ inches deep at the front or service side.

a. 30

b. 36

c. 40

d. 42

32. A bathroom requiring seven water closets may substitute a maximum of _____ water closets with

urinals.

a. 2

b. 3

c. 4

d. 5

33. Water is not considered hot until its temperature is equal to or exceeds _____degrees F.

a. 110

b. 115

c. 120

d. 140

34. Hot water faucets, except tub/shower mixing valves, on a fixture shall be____.

a. on the right

b. on the left

c. either left or right

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d. labled "hot"

35. Fixtures with concealed slip-joint connections shall be provided with an access panel or utility

space at least _____ inches in its smallest dimension.

a. 12

b. 15

c. 18

d. 20

36. Gauges used to test pressures greater than 100 psi shall have increments of ___psi or less>

a. .1

b. 1

c. 2

d. 3

37. A 4 inch copper pipe, passing through a fire-resistance-rated wall may be protected _____.

a. by filling the annular space with concrete

b. by an approved firestop system

c. by either a or b

d. by neither a or b

38. A booster pump must be equipped with a low pressure switch that cuts the pump off when a

positive pressure of ____ psi or less occurs on the suction side of the pump.

a. 10

b. 5

c. 20

d. 40

39. Holes bored in joists shall not be within ___inches of the top or bottom of the joist.

a. 1/2

b. 3/4

c. 1

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d. 2

40. Connections to an automatic fire sprinkler system may be protected against backflow by a/an

___________.

a. air gap

b. double check-valve assembly

c. Barometric loop

d. air break

41. Grease interceptors shall conform to any of the following except________.

a. PDI G101

b. ASME A112.14.3

c. ASME A112.14.4

d. NSF 1020

42. Thresholds in roll–in–type shower compartment shall be ____ inch maximum in height.

a. 1/4

b. 3/8

c. 1/2

d. 5/8

43. A maximum of ____ fixtures connected to a horizontal branch drain shall be permitted to be

circuit vented.

a. 4

b. 6

c. 8

d. 10

44. Water service pipe shall conform to _____.

a. ANSI/NSF 61

b. ASTM- 265F

c. ASSE 1010

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d. ASSE 1060

45. Which of the following traps are not prohibited?

a. S trap

b. crown-vented traps

c. P trap

d. bell trap

46. A fixture with a continuous flow of 6 gpm has _______ fixture units.

a. 4

b. 6

c. 9

d. 12

47. Trenches containing soft load-bearing materials may be back filled with all of the below

except.

a. fine gravel

b. sand

c. crushed stone

d. concrete

48. In a health care facility, the velocity of airflow in a central vacuum(fluid suction) system shall not

be less than _______ feet per mnute.

a. 100

b. 1000

c. 2500

d. 5000

49. A shop with less than ___ employees may use a sink faucet in lieu of a drinking fountain.

a. 4

b. 5

c. 8

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d. 10

50. The effluent level in a sump shall be prevented from rising within ____ inches of the gravity drain

inlet.

a. 2

b. 4

c. 6

d. 8

51. A three compartment sink is a ______________ fixture.

a. Triple ganged

b. Combination

c. Grouped

d. Battery

52. Notching of flanges and lips of cold-formed steel wall studs ______.

a. must be limited to 1/4 of the width

b. is not permitted

c. must be according to manufactures instructions

d. shall be as prescribed by a professional engineer

53. When testing a drain system with water, the pressure must be held for _____ minutes.

a. 10

b. 5

c. 12

d. 15

54. An individual water supply_____.

a. is not an approved public water supply

b. originates from a public water supplier

c. must only serve one family

d. is an approved public water supply

Test 137

55. Grab bars with a circular cross section shall have an outside diameter of _____ inch (32 mm)

minimum and 2 inches (51 mm) maximum.

a. 1

b. 1-1/4

c. 1-1/2

d. 1-3/4

56. Subsoil drainage components are _____.

a. required to be third party certified

b. required to be third party tested

c. not required to be third party certified

d. not required to be third party tested

57. The minimum slope of a horizontal 2 inch drainage pipe is _____ inch per foot?

a. 1/2

b. 1/4

c. 1/8

d. 1/16

58. A circuit vent shall connect to a ______.

a. vent stack

b. air admittance valve

c. stack vent

d. all the above

59. To be classified as tempered water, the minimum temperature must be ___degrees.

a. 100

b. 95

c. 90

d. 85

60. Stand pipes shall extend a minimum ____ inches above the trap weir.

Test 137

a. 12

b. 16

c. 18

d. 24

61. The fixture drain of an automatic clothes washer shall connect to branch drain or stack a

minimum of _____ inches in diameter.

a. 1-1/4

b. 1-1/2

c. 2

d. 3

62. A waste stack shall_____.

a. be vertical only

b. not have vertical or horizontal offsets

c. not receive discharge form water closets

d. all of the above

63. Exterior water supply system piping shall be install not less than____ inches below the frost line.

a. 4

b. 12

c. 8

d. 6

64. Water used for cooling equipment or other processes ______.

a. may be used for non potable purposes

b. may be discharged directly into a drain

c. may be returned to the potable water system

d. non of the above

65. An oil separator shall have an outlet water sea of not less than ___ inches.

a. 18

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b. 16

c. 12

d. 6

66. The maximum slope of the vent section of a horizontal branch drain shall be one unit vertical in

___ units horizontal.

a. 4

b. 6

c. 8

d. 12

67. A vent terminal shall not be located closer than _____ feet above the top of an openable

window.

a. 2

b. 4

c. 6

d. 10

68. The maximum number of hospital rooms one water closet may serve is _____.

a. 1

b. 2

c. 4

d. 3

69. A water supply tank that is being supplied by water at the rate of 300 gpm requires an overflow

pipe at least ____inches diameter.

a. 2

b. 3

c. 4

d. 5

70. Drinking water treatment units shall meet the requirements of______.

a. ANSI/NSF 42

Test 137

b. ANSI/NSF 44

c. ANSI/NSF 53

d. any of the above

71. The minimum dimension of an outdoor combustion air opening shall not be less than ___ inches.

a. 2

b. 2.5

c. 3

d. 4

72. In order for a room to be large in comparison the size of the equipment, it must be _____ times

larger in volume than a boiler.

a. 8

b. 10

c. 12

d. 16

73. Which of the following fittings shall nor be used with steel or wrought iron gas pipe?

a. brass

b. bronze

c. cast iron

d. aluminum

74. A gas vent shall terminate at a point at least 2 feet above any portion of a building within ____

feet.

a. 5

b. 8

c. 10

d. 4

75. Unless otherwise approved, threaded fitting larger than ____ inches shall not be used for gas

piping.

a. 4

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b. 3

c. 5

d. 2.5

76. Adding height to a vent____.

a. increases the vent capacity

b. decreases the vent capacity

c. does not affect the vent capacity

d. will cause the appliance to back draft

77. Which of the following shall not be used to pressure test gas pipe?

a. carbon dioxide

b. oxygen

c. air

d. nitrogen

78. To get outdoor combustion air through horizontal ducts, each opening must be 1 square inch

free area per ______btu/h.

a. 1000

b. 2000

c. 3000

d. 4000

79. Using the longest length method, and Table 402.4(1), A pipe measuring 70 feet from the meter

to a 199,000 btu/h water heater shall be a minimum______ inch nominal diameter.

a. 1

b. 1-1/4

c. 3/4/=

d. 1-1/2

80. Where two or more appliances connect to a single vent (common vent) the smaller appliance

shall connect _____with respect to the larger appliance.

a. at the lower level

Test 137

b. at the higher level

c. at the same level

d. at any level

81. A 1 inch diameter iron gas pipe shall be threaded with approximately ___ threads.

a. 8

b. 9

c. 10

d. 12

82. For other than black steel pipe, gas piping shall be labeled “gas” at interval not greater than

____ feet.

a. 4

b. 5

c. 6

d. 8

83. Which of the following gas piping systems must be pressure tested?

a. new installations

b. minor repairs

c. additions

d. all of the above

84. A room measuring 8’ X 6’ with 8 feet ceiling height is _____ cubic feet.

a. 48

b. 64

c. 384

d. 488

85. A boiler, measuring 56 cubic feet, must be placed in a room measuring _____ cubic feet in

order to be in a room large in comparison the size of the equipment.

a. 896

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b. 672

c. 856

d. 736

86. When you receive payments toward a customer’s account the correct bookkeeping entry

should be_______.

a. debit accounts payable, credit accounts receivable

b. debit cash, credit accounts receivable

c. debit accounts receivable, credit cash

d. debit cash, credit accounts payable

87. To pay off a 90 day $100,000 note at 6% interest , you will need $______ on the due date.

a. $106,000

b. $103,000

c. $101,500

d. $104.300

88. When you increase your price, which of the following increase.

a. profit

b. cost

c. overhead

d. labor

89. Generally, the most difficult aspect of estimating a job is estimating _____.

a. material costs

b. interest expense

c. equipment needed

d. labor costs

90. Employees exempted from the rules regarding overtime are _____.

a. office workers

b. independent contractors

Test 137

c. truck drivers

d. warehousemen

91. An employee works 44 hours for the week, his straight time pay is $18.00/hour. What is his gross

pay?

a. $575.00

b. $792.00

c. $460.00

d. $828.00

92. Which of the following is not company overhead?

a. office salaries

b. office rent

c. backhoe rent

d. telephone bill

93. A water heater costs $400, tax is 8%, labor is $180 and overhead is 15%. What is the sales price

needed to make 30% profit?

a. $1113

b. $887

c. $841

d. $796

94. Which of the following is not company overhead?

a. labor wages

b. utilities

c. advertising

d. telephone bill

95. A company has annual sales of $850,000 with $230,000 overhead. What is the percent

overhead?

a. 27%

b. 32%

Test 137

c. 37%

d. 18%

96. A water heater costs $475, tax is 8%, labor is $180 and overhead is 15%. What is the sales price

needed to make 30% profit?

a. $1113

b. $1260

c. $841

d. $796

97. If a town wishes to modify any provision of the Plumbing Code of New York State, it must be

approved by ________.

a. State Fire Prevention and Building Code Council

b. Department of State

c. Administration Task Group

d. New York State Department of Insurance

98. A _____ does not end in the death of the principle owner(s)

a. partnership

b. sole proprietorship

c. corporation

d. non of the above

99. According to the Fair Labor Standards Act, an employee earning $12.00 per hour will be paid

$_______ for a 10 hour day when his total hours worked for the week are 40.

a. $120

b. $132

c. $150

d. $240

100. A bond that covers the difference between the lowest bid and the next lowest bid in the

event the low bidder defaults is called a _______.

a. performance bond

Test 137

b. bid bond

c. payment bond

d. completion bond

Test 137

Answer Sheet

1. a. 708.3.2

2. c. 705.14.2

3. a. 306.2.2

4. b. Table 608.3

5. c. 909.2 plus Table 090.3

6. c. 417.5.2

7. a. 704.3

8. c. 605.9

9. c. Table 1003.3.4.1

10. d. 904.5

11. b. Add 1/2 pipe size when over 40 feet

12. a. 308.9

13. a. 405.3.1

14. a. 917.3

15. a. Table 303.4

16. d. 609.8 ICC/ANSI

17. c. 412.13

18. b. Table 709.1

19. d. 1002.1

20. c. 406.2

21. c. Table 916.5.1

22. c. Table 604.10.1

23. b. 905.3

24. d. 421.2

25. d. 917.1

26. c. Table 608.1

27. c. Table 605.4

28. d. 1002.1, exception 3

29. b 1002.4

30. c. 803.1

Test 137

31. a. 502.5

32. c. 419.2 (7 X .67 = 4.69) round down to 4

33. a. def hot water

34. b. 607.4

35. a. 425.2

36. c. 312.1.1.1

37. c. 307.2.3.1, exception 1 and 307.3.2.1.2

38. a. 605.5.5

39. d. 307.2.1

40. b. 608.16.4

41. d. 1003.3.4

42. c. 608.7 ICC/ANSI

43. c. 911.1

44. a. 605.3

45. c. 1002.3

46. d. 709.3

47. b. 306.2.3

48. d. 713.7.2

49. d. 410.1

50. a 712.3.4

51. b. 202 definitions

52. b. 307.2.6

53. d. 312.2

54. a. 202 def individual water supply

55. b. 609.2.1 ICC/ANSI

56. b. Table 303.4

57. b. Table 704.1

58. d. 905.1

59. d 202 def tempered water

60. c. 802.4

61. d. 406.3

Test 137

62. d. 910.2

63. d. 305.6

64. a. 608.9

65. a. 1003.4.2.1

66. d. 911.3

67. a. 904.5

68. b. Table 403.1 footnote c.

69. c. Table 606.5.4

70. d. 611.1

71. c. 304.6

72. d. definitions

73. d. 403.10.4

74. c. 503.6.6,

75. a. 403.10.4

76. a. study vent Tables

77. b. 406.2

78. b. 303.6.1

79. b.

80. b. 503.10.4

81. c. Table 403.9.2

82. b. 401.5

83. a. 406.1.1 and 406.1.2 exception

84. c. vol. = L X W X H

85. a. 16 X 56

86. b.

87. c. ((90/360) x .06 x 100,000)+100,000

88. a.

89. d.

90. b.

91. d

92. c.

Test 137

93. a. Profit and overhead are expressed as percentages of cost (15%+30%= 45%, Total

cost = $612, sales price = total cost/(100%-% needed to cover profit and overhead)

94. a.

95. a. 230000/850000=27

96. a. Profit and overhead are expressed as percentages of cost (15%+30%= 45%, Total

cost = $693, sales price = total cost/(100%- Minus % needed to cover profit and

overhead),693/.55=1260

97. a. 105.1

98. c

99. a

100. b.