ICC B1 EXAM SAMPLE QUESTIONS


38. The minimum stairway tread depth shall be _________ inches.

A. 9.25

B. 10

C. 10.5

D. 11

39. 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.

40. Where eave or cornice vents are installed, insulation shall not block the free flow of air so that a minimum of a ____ inch(es) space shall be provided between the insulation and the roof sheathing at the location of the vent.

A. 1

B. 2

C. 3

D. 4

41. Notches in flanges and lips of load-bearing steel floor framing members shall ____________________.

A. be a maximum of 1/2 of the flange width

B. be allowed if they are closer than 10 inches from bearing ends

C. not be allowed

D. none of these

42. A wood structural panel for a roof has a span rating of 32/16 it is 1/2 inch thick. What is the maximum span in inches for this panel if the edges are supported.

A. 20

B. 24

C. 28

D. 32

43. Loose-fill insulation materials with and acceptable flame spread index and accompanying smoke-developed index cannot be mounted without a screen or artificial supports and shall have a flame-spread rating not to exceed ____ with an accompanying smoke-developed factor not to exceed . Exceptions ignored.

A. 50, 500

B. 25, 450

C. 75, 400

D. none of the above

44. Regarding handrails for stairways, the use of a volute, turnout, starting easing or starting newel shall be allowed over the ___________ tread.

A. last

B. first

C. first and last

D. lowest

45. A (An) _____________ residential fire sprinkler system shall be installed in townhouses.

A. Copper or brass

B. automatic

C. remote control

D. none of these

46. When more than one smoke alarm is required to be installed within an individual dwelling unit the alarm devices shall be ______________________ so that if one signals and alarm, all units signal an alarm.

A. independent

B. within audible distance of each other

C. placed a uniform distances within the dwelling

D. interconnected

47. What are the required steel reinforcement rods for an 12 inch thick masonry foundation wall with a height of 9 feet with a unbalanced backfill height of 8 feet constructed in SC soil.

A. #6 at 48" o.c.

B. #4 at 48" o.c.

C. #5 at 48" o.c.

D. #6 at 56" o.c.

48. When there is usable space both above and below the concealed space of a floor/ceiling assembly, draftstops shall be installed so that the area of the concealed space does not exceed __________ square feet.

A. 750

B. 1,000

C. 1,500

D. 2,000

49. The top flanges of steel joists shall be laterally braced by the application of floor sheathing fastened to the joists. Floor joists with spans that exceed ______ feet shall have the bottom flanges laterally braced.

A. 6

B. 8

C. 12

D. 14

50. Foam plastics may be used without a thermal barrier when the foam plastic is protected by a minimum _____ inch(es) thickness of masonry or concrete.

A. 1

B. 2

C. 3

D. 4

51. Lateral ties in masonry columns shall be spaced not more than ______ inches on center and shall be at least 3/8 inch diameter. Lateral ties shall be embedded in grout.

A. 4

B. 6

C. 8

D. 12

52. When the code refers to LIB bracing as a braced wall line method, what does LIB stand for?

A. Lateral-inline-bracing

B. Let-in-bracing

C. Lumber-inline-bracing

D. Lumber-internally-braced

53. Reinforcement of web holes in cold steel formed floor joists not conforming to the requirements of the IRC shall be permitted if the hole is located fully within the center ______ percent of the span and the depth and length of the hole does not exceed _____ percent of the flat width of the web.

A. 25, 65

B. 30, 50

C. 40, 50

D. 40, 65

E. none of the above

54. A porous layer of gravel, crushed stone or coarse sand shall be placed to a minimum thickness of ____ inches under the basement floor. Provision shall be made for automatic draining of this layer and the gravel or crushed stone wall footings.

A. 2

B. 3

C. 4

D. 6