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B1 Residential Building Inspector

ICC Exam Workbook Sample Questions

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54. Ionization smoke alarms must not be installed less than _______________ horizontally from a permanently installed cooking appliance.

A. 3 feet
B. 10 feet
C. 15 feet
D. 20 feet

55. In dwelling units, where the top of the sill of an operable window opening is located less than 24 inches above the finished floor and greater than 72 inches above the finished grade or other surface below on the exterior of the building, the operable window must comply with which of the following:

A. Operable window with openings will not allow a 4-inch-diameter (102 mm) sphere to pass through where the openings are in their largest opened position.
B. Operable windows that are provided with window fall prevention devices that comply with ASTM F2090.
C. Operable windows that are provided with window opening control devices that comply with Section R312.2.2.
D. Any of those above

56. _________ glazing in railings above a walking surface are hazardous locations.

A. All
B. 30 inch high
C. 24 inch high
D. 60 inch high

57. Bathrooms may have a minimum ceiling height of ________________ .

A. 6 feet 8 inches
B. 6 feet 10 inches
C. 7 feet
D. 7 feet 2 inches

58. What is design temperature that should be used in calculating insulation values for central Illinois, in degrees Fahrenheit.

A. -10
B. 0
C. +10
D. +20

59. Risers may be vertical or sloped from the underside of the leading edge of the tread above at an angle not more than ________ degrees from the vertical.

A. 15
B. 30
C. 45
D. 60

60. What is the required ventilation area in square feet for a crawl space under a 1200 square foot dwelling? There is no Class 1 vapor retarder material being used as a ground cover.

A. 4
B. 8
C. 12
D. 16

61. Lumber and plywood are required to have a quality mark on each preservatively treated piece, and this mark must contain which of the following information. Exceptions ignored.

A. Identification of the treating plant, type of preservative, the minimum preservative retention end use for which the product was treated
B. Standard to which the product was treated, identity of the approved inspection agency
C. identity of the approved inspection agency, the designation "Dry", if applicable.
D. all of the above

62. A handrail must be provided on at least one side of all ramps exceeding a slope of one unit vertical in _____ units horizontal.

A. 6
B. 8
C. 10
D. 12

63. Floor cantilevers in cold-formed steel framing shall not exceed _____ inches.

A. 12
B. 24
C. 36
D. 48

64. The minimum headroom above a spiral staircase is _______________.

A. 6 feet 6 inches
B. 6 feet 8 inches
C. 6 feet 4 inches
D. 7 feet

65. An existing roof has one roofing application, which of the following is true.

A. All existing roofing must be always be removed before a new installation layer can be applied
B. A new installation layer of roofing may sometimes be applied over the existing.
C. Only asphalt shingles can be applied over the existing layer
D. none of the above

66. Each dwelling unit must be provided with a kitchen area and every kitchen area shall be provided with a _______.

A. refrigerator
B. sink
C. countertop
D. all of the above
67. The minimum stairway tread depth shall be _________ inches.

A. 9.25
B. 10
C. 10.5
D. 11

68. Solar power stationary storage battery systems must be installed in accordance with the manufacturer's instructions and their listing, if applicable, and must not be installed _____________ of a dwelling unit.

A. basement
B. garage
C. within the habitable space
D. in the same room as the furnace

69. Which type of glazing my not be used in a skylight.

A. Fully tempered glass.
B. Heat strengthened glass.
C. Double strength glass.
D. Wired glass.

70. Flue lining systems for gas appliances shall be in accordance with Chapter _____ of the IRC (International Residential Code)

A. 20
B. 23
C. 24
D. 27

71. Handrails on a ramp adjacent to a wall must have a space of not less than _____inches between the wall and the handrails.

A. 2
B. 2.5
C. 1.75
D. 1.5

72. The minimum width and depth for concrete and masonry footings for a 1 story slab on grade light frame with brick veneer construction dwelling where the soil load bearing value is 3500 psf is ________ inches. The snow load or live roof load is 70 psf.

A. 15 x 6
B. 12 x 6
C. 18 x 12
D. 22 x 8

73. Cleanout openings shall be provided within _____ inches of the base of each flue within every masonry chimney.

A. 3
B. 6
C. 12
D. 24

74. A home is getting a makeover with painting, papering, tiling, carpeting, cabinets, counter tops and new wood work. What is needed to comply with the code as far as permits are concerned.

A. no permit is needed
B. permit must be obtained
C. a permit is only needed for the cabinet work
D. none of the above

75. An attic is 2000 sq ft. What would be the minimum ventilation area required for this attic space? Exceptions ignored.

A. 9.3 sq ft.
B. 10.5 sq ft.
C. 13.3 sq ft.
D. 150 sq ft.

76. Exterior landings, decks, balconies, stairs and similar facilities must be positively anchored to the primary structure to resist both vertical and lateral forces or they must be designed to be self-supporting. Attachment may not be accomplished by use of ____________________________or nails subject to withdrawal.

A. joist hangers
B. cantilevers
C. lag bolts
D. toenails

77. Carports must be open on ___________________.

A. at least one side
B. at least two sides
C. at least three sides
D. all four sides

78. What is the climate zone for La Crosse County Wisconsin.

A. 4C
B. 5C
C. 6A
D. 6C

79. Wood columns used in dwelling must be _________________________________________. Exceptions ignored.

A. approved wood of natural decay resistance
B. approved pressure preservatively treated wood
C. either of the above
D. none of the above

80. Hollow concrete piers must be capped with ____________ of solid masonry or concrete, a masonry cap block, or they must have cavities of the top course filled with concrete or grout.

A. 4 inches (102 mm)
B. 6 inches (152 mm)
C. 8 inches (203 mm)
D. 12 inches (102 mm)

81. No person may make connections from a utility, source of energy, fuel or power to any building or system that is regulated by the code for which a permit is required, ______________________________________________________.

A. until approved by the utility
B. until approved by the building official
C. until the permit is issued
D. none of the above

82. In wood floor systems, the ends of each joist, beam or girder shall have not less than _____ inches of bearing on wood or metal. Exceptions ignored

A. 3/4
B. 1.5
C. 3
D. 4.5

83. Hearth extensions shall extend at least _______ inches front of and at least _____ inches beyond each side of the fireplace opening, where the fireplace opening is 6 square feet or less.

A. 12, 12
B. 20, 10
C. 24, 6
D. 16, 8

84. For a truss framed roof in wind exposure category B, with the trusses spaces 24" OC, and a roof span of 32 feet, if the ultimate design wind speed is 140 mph what is the uplift force on the each truss connection to the top plate of the wall? The roof pitch is 4:12,

A. 140
B. 200
C. 314
D. 480

85. A wood structural panel for a roof has a span rating of 24/16 it is 7/16 inch thick. What is the maximum span in inches for this panel if the edges are not supported.

A. 12
B. 16
C. 24
D. 28

86. With respect to wood foundations, where a sump pit and pump drainage system is required for adequate drainage around a basement foundation, the sump pit must be a minimum depth of _________ inches below the basement floor.

A. 12
B. 24
C. 30
D. 36

87. Where bars, grills, covers, screens or similar devices are permitted to be placed over emergency escape and rescue openings, area wells, or window wells that comply with the code, such devices must be _____________ from the inside without the use of a key, tool, special knowledge or force greater than that which is required for normal operation of the escape and rescue opening.

A. releasable
B. removable
C. releasable or removable
D. any of the above

88. On a wall that is a required braced wall line, if there is a diagonal wall section and the section is longer than _________ feet, then it must be treated as a separate braced wall line.

A. 4
B. 6
C. 8
D. 12

89. Stairway tread depth are measured horizontally between the vertical planes of the foremost projection of adjacent treads and ____________ to the tread’s leading edge.

A. at a right angle
B. 90 degrees
C. perpendicular
D. any of the above

90. Solid masonry walls of one-story dwellings and garages must not be less than _____ inches in thickness when not greater than _____ feet in height, provided that when gable construction is used, an additional _____ feet is permitted to the peak of the gable.

A. 9, 6, 6
B. 9, 6, 9
C. 8, 6, 6
D. 6, 9, 6

91. Fences less than ______ feet high do not require a permit.

A. 4
B. 7
C. 8
D. 10

92. What is the maximum allowable span for a 4 × 3 × 1/4 lintel supporting masonry veneer with one story above.

A. 8′-0″
B. 6′-0″
C. 4′-6″
D. 3′-0″

93. Air exhaust and intake openings that terminate outdoors shall be protected with corrosion resistant screens, louvers or grilles having a minimum opening size of ______ inch and a maximum opening size of ______ inch in any dimension.

A. 1/8, 1/4
B. 1/2, 1
C. 1/4, 1/2
D. 3/8, 3/4

94. What is the minimum thickness of lumber floor sheathing in inches, where the floor joists are spaced 16 inches OC and is installed perpendicular to the joist.

A. 11/16
B. 5/16
C. 3/4
D. 1/2

95. Handrail height, measured vertically from the sloped plane adjoining the tread nosing, or finish surface of ramp slope, must be not less than _____ inches and not more than _____ inches. Exceptions ignored.

A. 30, 40
B. 32, 36
C. 36, 40
D. 34, 38

96. What is the required ventilation area in square feet for a crawl space under a 2400 square foot dwelling. There is no Class 1 vapor retarder material being used as a ground cover.

A. 10
B. 12
C. 16
D. 24

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