2015 IRC Exam 4 of 4 (73-97)

Question 1

73.  What is the minimum size of an attic access opening?
(p411 - R807.1)
a.  18 X 24 
b.  20 x 24 
c.  22 X 30 
d.  24 x 24

Answer 1

c. 22 X 30

Question 2

74. What is the R value of the insulation that is placed between the first and second floor?

a. 13
b. 19
c. 22
d. 28

Answer 2

a. 13

Question 3

75.  What is the gauge of metal to be used as flashing where the eave of a sloped roof intersects a vertical sidewall? 
(p413 - R903.2.1)
a.  16 
b.  22 
c.  24 
d.  26

Answer 3

d. 26

Question 4

76.  What is the minimum slope of a roof if you wish to use clay and concrete roof tiles? 
(p418 - R905.3.2)
a.  1 : 12 
b.  1 ½ : 12 
c.  2 : 12 
d.  2 ½ : 12

Answer 4

d. 2 ½ : 12

Question 5

77.  What is the minimum slope of a roof if you are using 9 x 13 asphalt shingles? 
(p417 - R905.2.2)
a.  2:12 
b.  3:12 
c.  4:12 
d.  5:12

Answer 5

a. 2:12

Question 6

78.  How many fasteners are required per each wood shingle if used on the roof? 
(p420 - R905.7.5)
a.  2 
b.  3 
c.  4 
d.  no requirement

Answer 6

a. 2

Question 7

79.  What is the minimum percentage of slope of a roof if you wish to use a coal tar builtup roof? 
(p422 - R905.9.1)
a.  1 
b.  2 
c.  3 
d.  flat

Answer 7

a. 1

Question 8

80.  What is the minimum class of roofing required for a school? 
(p413 - Top of Page)
a.  class A 
b.  class B 
c.  class C 
d.  no requirement

Answer 8

c. class C

Question 9

81. What size hearth extension would be needed if the size of the fireplace opening is 24 inches x 30 inches?
    (p430 - R1001.10)
    a. 20 inches in front of and 12 inches beyond both sides
    b. 16 inches in front ofand 8 inches beyond both sides
    c. 18 inches in front of and 6 inches beyond both sides
    d. no requirement

Answer 9

b. 16 inches in front ofand 8 inches beyond both sides

Question 10

82.  What is the minimum size of masonry that may be used in a fireplace firebox if no lining is used? 
(p427 - R1001.5)
a.  8 inch 
b.  10 inch 
c.  12 inch 
d.  no requirement

Answer 10

b. 10 inch

Question 11

83.  The chimney flue lining shall not change shape or size within \_\_\_\_\_\_\_ inches when passing through floors or ceilings. 
(p432 - R1003.6)
a.  2 
b.  3 
c.  6 
d.  9

Answer 11

c. 6

Question 12

84.  What is the minimum height of a chimney to be above a structure if it is 8 feet away from the ridge of that building?
(p432 - R1003.9)
a.  1 foot 
b.  2 feet 
c.  3 feet 
d.  4 feet

Answer 12

b. 2 feet

Question 13

85.  All spaces between chimneys and floors and ceilings through which chimneys pass shall contain \_\_\_\_\_\_\_?
(p435 - R1003.19)
a.  draftstopping 
b.  fireblocking 
c.  caulk 
d.  no requirement

Answer 13

b. fireblocking

Question 14

86. A two story, non-sprinklered apartment building of type V-B construction may be a maximum of _______ square feet excluding other area increase allowances.

a. 5,000
b. 7,000
c. 10,000
d. 14,000

Answer 14

d. 14,000

Question 15

87.  The areas of buildings limited by table 506.2 shall be permitted to be increased if the minimum horizontal distance of the frontage is \_\_\_\_\_\_\_\_ft. 
(Diagram)
a.  5 
b.  10 
c.  15 
d.  20

Answer 15

d. 20

Question 16

88. The floor area of an one story office building that is equipped with a fire sprinkler system throughout need not be limited if it is surrounded by side yards having a width of not less than ______ft.

a. 20’
b. 40’
c. 60’
d. no requirement

Answer 16

c. 60’

Question 17

89. A structure that is built of Type IIA construction, 12 feet from the property line that has openings that need to be protected, shall not exceed _______ percent of the square footage of the wall.

a. 25
b. 45
c. 50
d. 75

Answer 17

b. 45

Question 18

90.  What is the fire protection rating required to be of the wall between Rental shop 2 and rental shop 3? 
(Diagram?)
a.  1 hour 
b.  2 hour 
c.  3 hour 
d.  4 hour

Answer 18

d. 4 hour

Question 19

91.  A fire door located within a 4 hour rated fire wall between a rental shop and a retail sales store must have a rating of at least \_\_\_\_\_\_\_ hours. 
(Diagram?)
a.  4 
b.  3 
c.  2 
d.  1

Answer 19

b. 3

Question 20

92. Where would a relief valve be needed when using an air admittance valve?
    (p888)
    a. where a horizontal branch is more than 4 branch intervals from top of stack.
    b. the second floor of 4 story building.
    c. the fourth floor where two fixture drains connect.
    d. the third floor of a 4 story building.

Answer 20

a. where a horizontal branch is more than 4 branch intervals from top of stack.

Question 21

93.  Concrete that is made with Type I or Type II Portland cement and is cured at 55 degrees rather than 40 degrees will be \_\_\_\_\_\_\_\_\_
(p888)
a.  stronger 
b.  weaker 
c.  unusable 
d.  no difference

Answer 21

a. stronger

Question 22

94. Systems of structural steel elements acting compositely with reinforced concrete shall be designed in accordance with what agency?

a. ASTM 35
b. AISC 360
c. ASCE 7
d. no requirement

Answer 22

b. AISC 360

Question 23

95. The use of open-web steel joists and joist girders shall be in accordance with what agency?

a. ASTM
b. AISC
C. SJICJ
d. ASCE

Answer 23

C. SJICJ

Question 24

96. Walkways and barriers provided for pedestrian travel in front of every construction site shall not be less than _______ feet wide and _______ feet tall.

a. 3, 8
b. 4, 8
c. 4, 9
d. 3, 9

Answer 24

b. 4, 8

Question 25

97. In an attic or crawl space where entry is for service of utilities, foam plastic insulation shall be protected against _______ by 1.5 inch thick mineral fiber insulation. a. termites b. ignition c. water damage d. no requirement

Answer 25

b. ignition