1 Exam Prep Plumbing State Contractors Practice Exam 2oneexamprep.com/temp/plumbing-practice-exam-2.pdf1 Exam Prep – Plumbing Practice Exam 2 1 1 Exam Prep Plumbing State Contractors

1 Exam Prep – Plumbing Practice Exam 2 1

1 Exam Prep

Plumbing State Contractors

Practice Exam 2

1 According to Chapter 64E-6, when sizing a grease interceptor used in a restaurant, the correct formula

is .

A. (S) x (EW 12) x (LF)

B. (S) x (GS) x (IW 12) x (LF)

C. (S) x (GS/ 12) x (HR)

D. (S) x (GS) x (HR) x (12) x (LF)

2. When employees are required to be in trenches feet or more in depth, ladders shall be

provided for exit, and such ladders shall require not more than feet of lateral travel.

A. 4 feet-30 feet

B. 5 feet- 30 feet

C. 4 feet-25 feet

D. 5 feet-25 feet

3. The minimum flow rate for the hydraulically most remote outlet in a Class II system is .

A. 80 gpm

B. 100 gpm

C. 250 gpm

D. 500 gpm

4. Piping shall be supported from the building structure in accordance with .

A. Local Code

B. Plans

C. MSS SP-58

D. MSS SP-69

5. According to the Plumber's Handbook, the minimum dimensions for a handicapped toilet room are .

A. 2 feet by 3 feet

B. 3 feet by 4 feet, 4 inches

C. 3 feet by 4 feet, 8 inches

D. 5 feet by 5 feet


6. The MINIMUM clearance from combustible materials for a vent piping connector for domestic-type vent

appliances (without a draft hood, and excluding oil appliances labeled for venting with Type L vents) SHALL

be .

A. 4"

B. 6"

C. 9"

D. 18"

7. Space under an element between 9 inches and 27 inches above the finish floor or ground and shall comply be

considered .

A. Toe clearance

B. Vertical clearance

C. Knee clearance

D. Turning space

8. The backflow of potentially contaminated water into the potable water system as a result of the pressure in

the potable water system failing below atmospheric pressure of the plumbing fixtures, pools, tanks or vats

connected to the potable water distribution piping is called .

A. Backflow

B. Air gap

C. Backsiphonage

D. Back pressure

9. One- and two-family dwellings shall have which of the following characteristics?

A. Be not more than three stories above grade plane in height

B. have a separate means of egress

C. Both A and B

D. Neither

10. According to the Florida Fuel Gas Code, in nonload-bearing partitions a hole may be bored not greater

than of the wood stud.

A. 25%

B. 40%

C. 60%

D. 75%


11. The optimum collector tilt for year-round use for domestic solar water heating in Jacksonville, Florida

would be .

A. 25

B. 30

C. 38

D. 86

12. According to Chapter 64E-6, the maximum depth from the invert to the drain tile or distributor pipe to the

finished ground surface shall not exceed 30" and shall have a earth cover of .

A. 6"

B. 8"

C. 10"

D. 12"

13. Class II hazardous locations are those with a presence of:

A. combustible dust

B. ignitable fibers

C. flammable liquids

D. explosives

14. Class I systems shall be provided with diameter hose connections.

A. 4 inch

B. 3 inch

C. 2 inch

D. 2-1/2 inch

15. Which of the following is not true about oxygen cylinders?

A. Grease shall not come in contact with valves or fittings

B. Valves should be left open on empty stored cylinders

C. Cylinders shall not be stored near heat ducts

D. Oxygen shall never be substituted for compressed air

16. According to the Plumber's Handbook, the recommended hot water (gas type) tank size for a 4 bedroom

home is gallons.

A. 20

B. 40

C. 52

D. 60


17. Mechanical joints may be used on soft annealed copper tubing nominal size, and shall

conform to ASTM B 2S0.

A. Less than 1 3/8"

B. Less than 1 1/8"

C. 1"

D. 7/8" or less

18. In residential dwelling units, the height of water closets shall be permitted to be inches

minimum and inches maximum above the finish floor, measured at the top of the seat.

A. 16, 18

B. 16, 20

C. 17, 19

D. 15, 19

19. A 5 acre parking lot will drain off gallons of water after a 1" rainfall.

A. 27,043 gallons

B. 135,219 gallons

C. 150,765 gallons

D. 162,914 gallons

20. Administration and enforcement of the Florida Building Code, Residential shall be in accordance with the

Florida Building Code, ____________.

A. Residential

B. Building

C. Both A and B

D. Neither

21. According to the Florida Fuel Gas Code, a 2 1/2 inch field threaded metallic pipe, threads are

required.

A. 10

B. 11

C. 12

D. 13

22. What is the angle of incidence when the sun is directly overhead?

A. 0 degrees

B. 90 degrees

C. 180 degrees

D. 270 degrees


23. According to Chapter 64E-6, a septic tank system shall not be located under buildings or

within feet thereof, or within 5 feet of property lines except where property lines abut utility

easements which do not contain underground utilities.

A. 3

B. 5

C. 7

D. 9

24. When employees are required to be in trenches of or more, an adequate means of exit such as

a ladder or steps shall be provided.

A. 3 feet

B. 4 feet

C. 5 feet

D. 6 feet

25. Horizontal piping hangers shall be spaced at a maximum separation distance .

A. of 5 feet

B. of 10 feet

C. of 15 feet

D. according to NFPA 13

26. Each section of the piping in medical gas and vacuum systems shall be subject to an initial pressure test and

examined for leakage. The test pressure for gases shall be 1.5 times the system working pressure but not less

than a gage pressure of .

A. 60 psi

B. 100 psi

C. 125 psi

D. 150 psi

27. According to the Plumber's Handbook, one watt equals B.T.U.s.

A. 3.4

B. 3.6

C. 3.8

D. 4


28. Condensate waste and drain line size shall be not less than internal diameter and shall not

decrease in size from the drain pan connection to the place of condensate disposal.

A. 3/8 inch

B. 1/2inch

C. 3/4 inch

D. 1 inch

29. Drinking Fountains for standing persons shall be inches min and 43 inches max above the finish

floor/ground.

A. 38

B. 28

C. 30

D. 36

30. According to code, the maximum elevation of effluent in a sewage lift station will be , when

the inlet invert elevation is 142.166'.

A. 139.0'

B. 140.166'

C. 141.0'

D. 142.0'

31. A building sewer is required to be water tight at all points.

A. True

B. False

32. According to the Florida Fuel Gas Code, the minimum clearance from the top of an open-top broiler unit to

the ventilation hood is inches.

A. 24

B. 28

C. 32

D. 36

33. The solar return on a standard electric water heater should have a dip tube to return heated water

approximately below the upper element's thermostat.

A. 2 inches

B. 3 inches

C. 4 inches

D. 6 inches


34. According to Chapter 64E-6, a septic tank system should be checked for occasional cleaning at least once

every year(s) if garbage grinders are discharging into the tank to determine if sledge needs to be

removed.

A. 1

B. 2

C. 3

D. 4

35. In excavations where employees must enter, excavated or other materials may be stored:

A. two feet from the edge of the excavation

B. one foot from the edge of the excavation if properly retained

C. one foot from the edge of the excavation

D. A or B

36. The organization responsible for approving equipment and installations is .

A. National Fire Prevention Association

B. The Builder of Record

C. The Authority Having Jurisdiction

D. The Architect

37. When cleaning the interior surfaces of level I distribution piping and controls on site, clean, hot water-

alkaline solution, such as sodium carbonate or trisodium phosphate may be used at a rate of .

A. 1 gallon to 3 gallon of potable water

B. 1 gallon to 4 gallons of potable water

C. 1 gallon to 5 gallons of potable water

D. 1 pound to 3 gallons of potable water

38. According to the Plumber's Handbook, a water service pipe must be placed in a separate trench from that of

the sewer pipe and must be separated by at least feet.

A. 5

B. 10

C. 15

D. 20


39. Which of the following is not permitted as a joint in fuel oil piping?

A. Threaded joints

B. Brazed joints

C. Mechanical joints

D. Unions requiring gaskets or packings, right or left couplings, and sweat fittings employing solder having a

melting point of less than 1,000 degrees

40. The seat height of a water closet shall be inches minimum and inches maximum

above the finish floor, measured at the top of the seat.

A. 16, 18

B. 16, 20

C. 17, 19

D. 15, 19

41. According to code, a fitting is prohibited for use in the water distribution piping.

A. compression

B. saddle-type

B. threaded joint

D. soldered joint

42. ____________ piping, installed through holes or notches in studs, joists, rafters or similar members less

than 1 1/2 inches from the nearest edge of the member, required protection by steel shield plates.

A. Cast-iron

B. Galvanized steel

C. Either A or B

D. Neither

43. According to the Florida Fuel Gas Code, when testing the piping system the minimum test pressure shall

not be less than psig.

A. 3

B. 30

C. 125

D. Twice the working pressure

44. What is the turnover time for a pool heating system using a gas or oil heater with100 feet of 2 inch diameter

pipe and a 1 hp pump?

A. 9 hours

B. 8 hours

C. 7.2hours

D. 8.6 hours


45. According to Chapter 64E-6, the absorption bed for a three bedroom private dwelling where the percolation

rate is 1 " in 9 minutes shall have a minimum area of square feet (Select the closest answer).

A. 105

B. 165

C. 300

D. 623

46. The greatest angle above the horizontal plane for Type A soil is degrees.

A. 34 degrees

B. 45 degrees

C. 53 degrees

D. 90 degrees

47. Which system has piping that supplies both hose connections and automatic sprinklers?

A. dual supply

B. dual feed

C. dual purpose

D. combined

48. Which of the following is not a level 1 pipe labeling requirement?

A. At intervals of not more than 20 feet

B. At least once in or above every room

C. On both sides of walls or partitions penetrated by the piping

D. At least once every other story height traversed by risers

49. According to the Plumber's Handbook, a 2-inch pipe requires inch pipe wrench.

A. 6 or 8

B.10

C. 14

D. 24

50. SHALL NOT be used to leak test a system.

A. R-22

B. Nitrogen

C. Oxygen

D. R-12


51. The minimum number of drinking fountains that shall be provided is .

A. One

B. Two

C. Three

D. Four

52. According to code, a crown vent shall not be installed within of a 3" trap weir.

A. 9"

B. 8"

C. 6"

D. 3"

53. Footings ______ extend below the 45-degree bearing plane of the bottom edge of a wall or footing when

trenching is installed parallel to the footings.

A. shall

B. shall not

54. When combining spaces on the same story, each opening shall have a net free area of square

inch(es) per 1,000 Btu/hr of the total input rating of all appliances in the space.

A. 1

B. 2

C. 3

D. 4

55. How many heat traps should be installed on the storage tank piping?

A. 1

B. 2

C. 3

D. 4

56. According to Chapter 64E-6, septic tank systems should not be located within feet of any

private water supply well or within 100 feet of any public water supply well.

A. 25

B. 50

C. 75

D. 100


57. Sloping or benching for excavation than feet deep shall be designed by a registered

professional engineer.

A. 10

B. 15

C. 20

D. 25

58. A connection through which the fire department can pump water into a standpipe is .

A. a fire department connection

B. a standpipe riser connector

C. an accessible inlet connection

D. a drainage outlet fitting

59. Flexible connectors of other than all-metal construction used to connect outlets of pressure regulators to

fixed piping shall not exceed ____ in length, for a level 3 piping system.

A. 24"

B. 48"

C. 60"

D. 72"

60. According to the Plumber's Handbook, sand filters used for swimming pools must have a backwash rate of

not less than g.p.m. per square foot of filter area.

A. 10

B. 12

C. 14

D. 16

61. Generally, appliances located in public garages, motor fuel-dispensing facilities, repair garages or other

areas frequented by motor vehicles, shall be installed a minimum of above the floor.

A. 3 feet

B. 4 feet

C. 6 feet

D. 8 feet

62. According to code, process tanks shall discharge into a drainage system through .

A. a back-flow valve

B. a drum trap

C. a direct waste with a trap

D. an indirect waste pipe with an air gap


63. What is the minimum diameter for fixture tail pieces for sinks, dishwashers, laundry tubs, bathtubs and

similar fixtures?

A. 1/2 inch

B. 1 inch

C. 1 1/2 inches

D. 2 inches

64. Tests requiring a pressure of 10 psig or less shall utilize a testing gauge having increments of psi

or less?

A. .10

B. 1.0

C. 10

D. .01

65. According to Florida Rules: Chapter 64E-6, when a private potable well is utilized, the maximum daily

sewage flow allowance is multiplied by gallons per acre per day?

A. 1,000

B. 1,500

C. 2,000

D. 2,500

66. The standpipe system that relies on a fire department connection to supply the system is .

A. an automatic standpipe system

B. a manual standpipe system

C. a semiautomatic standpipe system

D. a single zone standpipe system

67. 1" nominal copper tubing for level 3 shall be supported from the building structure a maximum of _______

feet on center.

A. 6'

B. 7'

C. 8'

D. 9'

68. According to the Plumber's Handbook, the minimum size waste and overflow for bathtubs is inch(es).

A. 1

B. 1 1/2

C. 2

D. 3


69. According to code, a waste stack can receive waste from .

A. water closets

B. any plumbing fixture

C. residential plumbing fixtures only

D. fixtures other than water closets and urinals

70. What is the minimum utility space required for fixtures with concealed slip-joint connections?

A. 8 inches

B. 12 inches

C. 16 inches

D. 20 inches

71. Gaseous hydrogen piping shall be sized in accordance with methods?

A. SMACNA

B. NFPA 58

C. NFPA 54

D. Approved engineering

72. According to Florida Rules: Chapter 64E-6, when designing a drain field what is the minimum percentage

of unobstructed land area in relationship to the drain field?

A. 75 %

B. 100 %

C. 150 %

D. 200%

73. According to the Plumber's Handbook, if the size of the fixture drain is 1- 1/2", the maximum distance of

the fixture trap from the vent opening is . (Based on the International Plumbing Code).

A. 2

B. 3

C. 4

D. 6

74. According to code, a central vacuum (fluid suction) system of the disposal type shall be:

A. directly connected to the sanitary drainage system through a trapped waste

B. indirectly connected to the sanitary drainage system through an air gap

C. connected through an approved interceptor

D. connected with a backwater valve


75. How many inches above the trap weir are standpipes required to extend?

A. 12 inches

B. 22 inches

C. 32 inches

D. 42 inches

76. According to code, a 2" horizontal drain pipe shall fall at least , in a 35 foot run.

A. 4-3/8 inches

B. 6-5/8 inches

C. 7-3/8 inches

D. 8-3/4 inches

77. A backflow prevention device which includes a spring loaded check valve and a spring loaded vacuum

breaker to prevent the backflow of irrigation system to the water source is called .

A. Pressure relief valve

B. Pressure vacuum breaker

C. Block system

D. Air gap prevention valve

78. A solar water heating system would have its air vent located ?

A. at the midpoint of the storage tank

B. vertical, in the uppermost part

C. immediately above the drain valve

D. air vents are not part of the system

79. According to code, the adapter fitting for PVC pipe to cast iron hub pipe may be a .

A. caulked joint

B. increaser bushing

C. expansion joint

D. ground joint

80. According to code, copper vent pipe flashing shall weigh not less than per square foot.

A. 8 ounces

B. 10 ounces

C. 12 ounces

D. 16 ounces


1 Exam Prep

Plumbing State Contractors

Practice Exam 2 –Answers

Book Section/Page

1. B 64-E-6 6.013(8.(d.(1.

2. C OSHA 1926.651(9)(2)

3 B NFPA 14 7.10.2.1.1

4 C NFPA 99, 2012 5.1.10.11.4.2

5. C Plumber’s Handbook 261

6 D FBC - Mechanical, 2014 Table 803.10.6

7. C FBC – Accessibility, 2014 306.3.1

8. C FBC – Plumbing 202, definitions

9. C FBC – Residential R101.2

10. C FBC- Fuel Gas, 2014 302.3.4

11 B Solar Water & Pool Heating Manual 1-11, North Florida

12. A 64-E-6 6.012

13. A OSHA 1926.449

14 D NFPA 14 7.3.2

15 B NFPA 99, 2012 5.1.3.2.6 – 5.1.3.2.11

16. B Plumber’s Handbook 171

17. D FBC - Mechanical, 2014 1107.5.3

18. D FBC – Accessibility, 2014 604.4

19. B FBC – Plumbing

Solution: Mathematics 1 Acre = 43,560 sf x 5 acres = 217,800 sf

217,800 x .083' = 18,077 cf x 7.48 = 135,219 gallons

Note: 1 "/12" = .083' 1 cf = 7.48 gallons

20. B FBC – Residential R101.2.1

21. C FBC- Fuel Gas, 2014 Table 403.9.2

22 A Solar Water & Pool Heating Manual 1-5, Figure 3, 0 degrees

23. B 64-E-6 6.005(2.

24. B OSHA 1926.651(c.(2.

25. D NFPA 14 6.4.2.2

26. D NFPA 99, 2012 5.1.12.2.3.4

27. A Plumber’s Handbook 172

28 C FBC - Mechanical, 2014 307.2.2

29. A FBC – Accessibility, 2014 602.7

30. D FBC – Plumbing

Solution: 712.3.4 2" / 12" = .166' 142.166' - .166' = 142'

31. A FBC – Residential P2503.4


32. A FBC- Fuel Gas, 2014 623.5.1

33. D Solar Water & Pool Heating Manual 3-23 #7

34. A 64-E-6 6.010(1.

35. D OSHA 1926.651(j. (2.

36. C NFPA 14 3.2.2

37. D NFPA 99, 2012 5.1.10.4.3.10

38. A Plumber’s Handbook 182

39. D FBC - Mechanical, 2014 1303.1, 1303.3, 1303.3.2

40. C FBC – Accessibility, 2014 604.4

41. B FBC – Plumbing 605.9 4.

42. C FBC – Residential P2603.2.1

43. A FBC- Fuel Gas, 2014 406.4.1

44 C Solar Water & Pool Heating Manual 5-21 Table 7.1, gas or oil, 100' - 2", 1 hp, 7.2

45. A 64-E-6 6.008 Table I

Solution: 100 Gallons/Day/Bedroom 3 Bedrooms = 300 Gal/Day

6.008 Table 3

(5-10 Minutes Inch =1.0. 300 x 0.35 = 105

46. C OSHA Table B-1.

47. D NFPA 14 3.3.12.2

48. D NFPA 99, 2012 5.1.11.1.2 (1)(2)(3)(4)

49. D Plumber’s Handbook 186

50 C FBC - Mechanical, 2014 1108.2

51. B FBC – Accessibility, 2014 211.2

52. C FBC – Plumbing 906.3

Note: not within two pipe diameters, 2 x 3" = 6"

53. B FBC – Residential P2604.4

54 A FBC- Fuel Gas, 2014 304.5.3.1

55. B Solar Water & Pool Heating Manual 3-23

Note: #4 (1-cold water inlet) (1-hot water supply)

56. C 64-E-6 6.005 (1.(a.

57. C OSHA Table B-1 note

58 A NFPA 14 3.3.2.1.1

59 C NFPA 99, 2012 5.3.6.21.9


61. D FBC - Mechanical, 2014 304.6

62. D FBC – Plumbing 802.1.5

63. C FBC – Residential P2703.1

64. A FBC- Fuel Gas, 2014 705.3.6

65. B 64-E-6 6.005(7)(c) 66. B NFPA 14 3.3.12.4

67 C NFPA 99, 2012 Table 5.3.6.12.5


69. D FBC – Plumbing 910.2

70. B FBC – Residential P2704.1


71. D FBC- Fuel Gas, 2014 704.1.2.1

72. A 64-E-6 6.005(4) 73. B Plumber’s Handbook 255

74. A FBC – Plumbing 713.7

75. D FBC – Residential P2706.2

76. D FBC – Plumbing Table 704.1,

Solution: 1/4" per foot, 35' x .25" = 8.75"

77. B FBC – Plumbing Appendix F, definitions

78. B Solar Water & Pool Heating Manual 2-37, Figure 24

79. A FBC – Plumbing 705.19.4

80. A FBC – Plumbing 902.2

1 Exam Prep Plumbing State Contractors Practice Exam 2oneexamprep.com/temp/plumbing-practice-exam-2.pdf1 Exam Prep – Plumbing Practice Exam 2 1 1 Exam Prep Plumbing State Contractors

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