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Worksheets2018 IFGC CH 3A
Total questions: 25
Worksheet time: 26mins
Name
Class
Date
1.
01.Unless otherwise approved in accordance with Section 105, appliances regulated by this code shall be (a) .
Choose from the below words
1. a.certified
2. b.listed
3. c.vented
4. d.evaluated
2.
02.Unlisted appliances (a) .
3.
03.For a label affixed to a listed fuel gas appliance, which of the following is not required information?
a)
9. a.The appliance Btu/hour rating
b)
10. b.If the appliance is rated for 120 or 220 volt alternating current
c)
11. c.The approved fuel
d)
12. d.The minimum required clearances
4.
04.Combustion air requirements for appliances with power burners are determined by _____________.
a)
13. a.the known air infiltration rate method
b)
14. b.engineering calculations
c)
15. c.research reports
d)
16. d.the manufacturer’s instructions
5.
05.Conversion of an appliance to a different fuel gas is allowed if in accordance with the _____________ instructions.
a)
17. a.engineer’s
b)
18. b.inspector’s
c)
19. c.manufacturer’s
d)
20. d.contractor’s
6.
06.Appliances in structures located in flood hazard areas shall be located at or above the _______________.
a)
21. a.high water level
b)
22. b.elevation required by the IBC
c)
23. c.freeboard
d)
24. d.100-year flood level
7.
07.Notching at the ends of wood joists shall not exceed ___________the joist depth.
a)
25. a.½
b)
26. b.⅛
c)
27. c.⅜
d)
28. d.¼
8.
08.Cuts, notches and bored holes are prohibited in trusses except where___________.
a)
29. a.limited in size, number and location
b)
30. b.located in nonbearing members
c)
31. c.approved by the building inspector
d)
32. d.the effects are specifically considered in the design
9.
09.In bearing partitions, any wood stud is permitted to be cut or notched to a depth not exceeding_________________ percent of its width.
a)
33. a.25
b)
34. b.50
c)
35. c.40
d)
36. d.10
10.
10.Notches in the flange of a cold-formed steel stud in a bearing wall ___________.
a)
37. a.must be at least 16 inches from the bearing end
b)
38. b.cannot exceed 3 inches in length
c)
39. c.must be spaced at least 24 inches
d)
40. d.are not allowed
11.
11.When installed in a bedroom, a single wall-mounted unvented room heater is limited to an input rating not greater than_____________ Btu/h.
a)
41. a.5,000
b)
42. b.6,000
c)
43. c.8,000
d)
44. d.10,000
12.
12.Appliances shall not be installed in a location subject to vehicle damage except____________.
a)
45. a.when listed for that particular installation
b)
46. b.when installed per the manufacturer’s installation instructions
c)
47. c.where protected by an approved means
d)
48. d.when installed behind steel barriers
13.
13.Where used, draft hoods and draft barometric regulators shall be installed _____________.
a)
49. a.on the roof of the building
b)
50. b.in a room adjacent to the appliances
c)
51. c.at the appliance vent connection
d)
52. d.in the same room as the appliance
14.
14.Where mechanical exhaust interferes with the operation of an appliance, _____________ is required.
a)
53. a.an appliance enclosure
b)
54. b.makeup air
c)
55. c.an automatic appliance shut-off device
d)
56. d.an interlock between the appliance and exhaust fan
15.
15.Where the air-infiltration-rate is unknown, a room or space providing indoor combustion air requires a minimum volume of __________ cubic feet per 1,000 Btu/h of the appliance input rating.
a)
57. a.15
b)
58. b.25
c)
59. c.50
d)
60. d.75
16.
16.When using the known air-infiltration-rate method for indoor combustion air, the maximum infiltration rate that can be used in the equations is ____________ ACH.
a)
61. a.2.0
b)
62. b.1.0
c)
63. c.0.75
d)
64. d.0.60
17.
17.Holes bored in solid wood joists shall be located not less than ____________inch(es) from the top and bottom joist.
a)
65. a.2
b)
66. b.1 ½
c)
67. c.1
d)
68. d.½
18.
18.Openings obtaining indoor combustion air from a different story require a total minimum free area of_________ square inch(es) per 1,000 Btu/h of the total input rating of appliances.
a)
69. a.2
b)
70. b.3
c)
71. c.1
d)
72. d.4
19.
19.Where a space is provided outdoor combustion air through two openings, one opening must begin within _________ inches of the top and within ____________inches of the bottom of the enclosure.
a)
73. a.3, 3
b)
74. b.6, 6
c)
75. c.12, 12
d)
76. d.18, 18
20.
20.The minimum dimension of an outdoor combustion air opening is inches.
a)
77. a.3
b)
78. b.8
c)
79. c.6
d)
80. d.12
21.
21.Where a space is provided outdoor combustion air through a single opening, a clearance of at least ___________ inches is required in front of the appliance.
a)
81. a.6
b)
82. b.5
c)
83. c.12
d)
84. d.10
22.
22.A mechanical combustion air system shall supply outdoor air at a rate not less than ____________ cfm per 1,000 Btu/h of total input rating of all appliances located within the space.
a)
85. a.15
b)
86. b.21
c)
87. c.0.50
d)
88. d.0.35
23.
23.Where a screen is installed at a combustion air opening, the mesh size shall not be smaller than _____________________inch.
a)
89. a.⅛
b)
90. b.½
c)
91. c.⅜
d)
92. d.¼
24.
24.Galvanized steel ducts used for combustion air shall be constructed in accordance with the ____________.
a)
93. a.International Fuel Gas Code (IFGC)
b)
94. b.International Building Code (IBC)
c)
95. c.International Mechanical Code (IMC)
d)
96. d.ACCA Manual D
25.
25.Within dwelling units, unobstructed _____________ are permitted to convey combustion air.
a)
97. a.shafts
b)
98. b.stud and joist spaces
c)
99. c.chases enclosing chimneys
d)
100. d.chimneys
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