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Contractors Exam > International resedential Code > Flashcards

International resedential Code Flashcards

1
Q

How long do you have to pickup your permit before it will be considered abandoned?

A

180 Days

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2
Q

What size must a one-story detached structure such as a shed or playhouse be in order to be exempt from needing a permit?

A

The floor area must not exceed 120 square feet.

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3
Q

True or False? Fences less than six feet in height, sidewalks, and driveways do not need a permit.

A

True

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4
Q

After receiving your permit how soon must you start work?

A

Within 180 Days

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5
Q

What must be submitting with a permit application?

A

A Site Plan

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6
Q

When is a certificate of occupancy issued?

A

After the building official inspects the building and finds no violations.

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7
Q

What is the allowable deflection for floors and plastered ceilings?

A

Length divided by 360

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8
Q

A wall that extends beyond the finished roof deck is called a?

A

A parapet wall

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9
Q

A parapet wall must extend above the roof by a minimum of?

A

30” inches

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10
Q

Dwelling units in two family dwellings shall have what fire resistance rating?

A

1-Hour

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11
Q

Thickness of a door separating a garage from a residence is?

A

1 and 3/8” inches

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12
Q

The garage shall be separated by the residence and attic by not less than?

A

1/2” Drywall

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13
Q

What is the maximum flame spread index and accompanying smoke developed index for insulation?

A

25 flame spread and 450 smoked developed index

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14
Q

What must be provided to form an effective fire barrier between stories and between the top story and the roof space?

A

Fire Blocking

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15
Q

What is the maximum horizontal interval for fire blocking?

A

10 Feet

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16
Q

What is the minimum nominal size for fire blocking?

A

2” inches

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17
Q

Draft stopping material shall not be less than?

A

1/2” Gypsum board or 3/8” wood structural panels

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18
Q

What is the minimum glazing area of a habitable room?

A

Not less than 8% the floor area of that room

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19
Q

What is the minimum openable area to the outdoors for all habitable rooms?

A

4% of floor area

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20
Q

What is the minimum size for a window for bathroom and toilet areas?

A

3 Square Feet

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21
Q

Lights in stairways must have a wall switch at each floor level where the stairway has at least how many risers?

A

Six

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22
Q

Every dwelling must have at least 1 room with minimum square footage of?

A

120’ Square Feet

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23
Q

Habitable rooms shall have a floor area of not less than?

A

70’ Square Feet

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24
Q

Habitable rooms shall not be less than how many feet in any horizontal dimension?

A

7 feet

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25
Q

Habitable rooms shall have a ceiling height of not less than?

A

7 feet

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26
Q

What are 3 sanitation requirements which every dwelling must have?

A

A water closet, lavatory, and a bathtub or shower

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27
Q

Every dwelling shall have a?

A

Kitchen and kitchen sink

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28
Q

What is a requirement for all plumbing fixtures?

A

That they have both hot and cold water

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29
Q

What type of surface is required in bathtub and shower areas?

A

Nonabsorbent

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30
Q

What must be provided for glass in hazardous locations?

A

A manufacturer’s designation specifying who applied the designation, and designating the type of glass and the standard with which it complies.

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31
Q

What is the minimum thickness for glass in jalousies and louvered windows?

A

3/16” inch

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32
Q

What is the maximum length for glass in jalousies and louvered windows?

A

48” inches

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33
Q

A pane of glass where the nearest vertical edge is within a 24” arc of the door in a closed position and whose bottom edge is less than 60” above the floor is considered what?

A

A hazardous location

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34
Q

The following are all hazardous locations for glazing:

A

Exposed area of an individual pane larger than 9 square feet. The bottom edge less than 18” inches above the floor. The top edge more than 36” inches above the floor. A walking surface within 36” measured horizontal and in a straight line of the glazing.

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35
Q

When a protective bar is installed on a glazed door, the bar should be capable of withstanding a horizontal load of how many pounds per linear foot?

A

50 pounds

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36
Q

When is glass indoors considered nonhazardous?

A

If there is a protective bar installed on the accessible sides of the glazing 34” to 38” inches above the floor.

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37
Q

When openings are provided as a means of escape and rescue, they shall have a sill height of not more than?

A

44” inches

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38
Q

The minimum square footage of a window on a second floor or above is?

A

5.7’ square feet

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39
Q

What is the minimum size window on the grade floor?

A

5’ square feet

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40
Q

Egress openings shall have a minimum net clear opening height of?

A

24” inches

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41
Q

Egress openings shall have a minimum net clear opening width of?

A

20” inches

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42
Q

The minimum width of a hallway shall not be less than?

A

3’ feet

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43
Q

Egress exit doors shall be a side-hinged door not less than what size?

A

A minimum clear width of 36” wide and 80” in height

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44
Q

What size landing shall be on each side of an exterior door?

A

The width of each landing shall have a minimum dimension of 36” inches in the direction of travel.

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45
Q

Stairways shall not be less than how many inches wide?

A

36” inches

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46
Q

The minimum width of a stairway when measured between two handrails shall be?

A

27” inches

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47
Q

The minimum headroom height in a stairway is?

A

6’foot 8” inches

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48
Q

How do you measure headroom of a stairway?

A

Vertically from the sloped line adjoining the tread nosing, or from the floor surface of the landing or platform on that portion of the landing.

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49
Q

What is the maximum stair riser height?

A

7’ and 3/4” inches

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50
Q

The greatest riser height within any flight of stairs shall not exceed the smallest by more than?

A

3/8” inch

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51
Q

The minimum stair tread depth is?

A

10” inches

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52
Q

The greatest tread depth within any flight of stairs shall not exceed the smallest by?

A

3/8” inch

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53
Q

What are the minimum and maximum sizes for nosings on stairways with solid risers?

A

3/4” inch to 1-3/4” inch

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54
Q

Open risers are permitted, provided that the opening between the treads does not permit the passage of a sphere of what size?

A

4” inch diameter

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55
Q

What is the maximum vertical rise between floor levels or landings with a flight of stairs?

A

12’ feet

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56
Q

What is the minimum dimension of a landing?

A

36” inches measured in the direction of travel

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57
Q

What is the maximum steepness for treads and landings?

A

2% (1:48)

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58
Q

Handrail height shall not be less than how many inches and not more than how many inches?

A

Not less than 34” inches and not more than 38” inches

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59
Q

Handrails adjacent to a wall shall have a space of not less than how many inches between the wall and the handrail?

A

1-1/2” inches

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60
Q

Type I round handrails must have a diameter of not less than 1-1/4” inch and not larger than?

A

2” inches

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61
Q

What size landing is required at the top and bottom of ramps?

A

3’ ft. x 3’ ft.

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62
Q

How high must a porch floor be above the ground to require a guardrail?

A

30” inches

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63
Q

What is the minimum height for guards on porches which are more than 30” able the grade or floor?

A

36” inches

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64
Q

What is the minimum height of guards on the open sides of stairways more than 30” inches in height?

A

34” inches

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65
Q

What size sphere shall not pass between vertical members of a guardrail system?

A

4” inches

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66
Q

The triangular area formed by the riser, tread and rail must not allow the passage of what size sphere?

A

6” inches

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67
Q

True or False: Bedrooms shall have smoke alarms?

A

True

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68
Q

Untreated floor joist can be no less than how many inches close to exposed earth?

A

18” inches

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69
Q

Untreated wood girders can be no less than how many inches close to exposed earth?

A

12” inches

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70
Q

All wood framing members that rest on concrete or masonry exterior foundation walls shall be not less than how many inches from the exposed ground?

A

8” inches

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71
Q

When an untreated wood girder is to be placed in a masonry pocket, what spacing is required on the top, sides and end of the girder from the masonry?

A

1/2” inch

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72
Q

What is the minimum distance untreated wood siding, sheathing or wall framing can be from the ground?

A

6” inches

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73
Q

Buildings erected in coastal high-hazard areas shall be supported on what?

A

Pilings or Columns

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74
Q

The grade away from foundation walls shall fall a minimum of how many inches within the first 10 feet?

A

6” inches

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75
Q

What is the load bearing capacity of clay soil if no soil test are required?

A

1500 psf

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76
Q

What type of fasteners should be used when nailing a knee wall on a wood foundation?

A

Stainless Steel Nails

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77
Q

The minimum compressive strength for foundation concrete that will NOT be exposed to the weather is?

A

2500 psi

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78
Q

The minimum compressive strength for foundation concrete that will be exposed to the weather is?

A

2500 psi

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79
Q

Footings must bear on?

A

Undisturbed natural soils or engineered fill

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80
Q

The minimum width of a concrete footing is?

A

12” inches

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81
Q

A vapor retarder should be installed on which side of a wall?

A

To the warm side of the building

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82
Q

The minimum thickness of a spread footing is?

A

6” inches

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83
Q

Continuing foundations are required for interior walls longer than?

A

50’ feet

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84
Q

Bottom reinforcement shall be located a minimum of how many inches clear from the bottom of the footings?

A

3” inches

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85
Q

In seismic design categories, what type of bar shall be installed at not more than 4 feet on center?

A

One No. 4 bar. The vertical bar shall extend to 3” inches clear of the bottom of the footing and extend a minimum of 14” inches into the stem wall.

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86
Q

What are the specifications for foundations with stem walls?

A

The shall have installed a minimum of one No. 4 bar within 12” inches of the top of the wall and one No. 4 bar located 3” to 4” inches from the bottom of the footing.

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87
Q

What are the steel requirements for a cast monolithic floor slab?

A

(1) #5 bar or (2) #4 bars in the middle third of the footing

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88
Q

What is the minimum distance the bottom of the footing can be below grade?

A

12” inches

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89
Q

What are two methods to protect foundation walls from frost?

A

(1) Piers shall extend below the frost line. (2) Piers shall be erected on solid rock.

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90
Q

What is the maximum allowable slope for the top surface of a footing?

A

Zero

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91
Q

When placing anchor bolts in a concrete floor slab, the should extend into the concrete how far?

A

7” inches

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92
Q

What is the minimum diameter for foundation anchor bolts?

A

1/2” inch

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93
Q

What is the maximum on center spacing for anchor bolts in sole plates for interior bearing walls?

A

6’ feet on center and located within 12” inches of the ends of each plate section when supported on a continuous foundation.

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94
Q

What is the maximum anchor bolt spacing for buildings over two stories in height?

A

4’ feet

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95
Q

What is the maximum size stone for gravel under wood foundations?

A

Gravel shall not exceed 3/4” inch

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96
Q

What is the minimum size for sand under wood foundations?

A

Sand shall be coarse, and not smaller than 1/16” of an inch.

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97
Q

What is the maximum size of crushed stone under wood foundations?

A

Crushed stone shall have a maximum size of 1/2” inch

98
Q

For buildings where the monthly mean temperature of the building is maintained at a minimum of 64 degrees, are footings required to extend below the frost line, when protected by insulation?

A

No

99
Q

When placing vertical steel reinforcement in a 12” inch concrete wall, the maximum spacing should not exceed?

A

72” on center

100
Q

Loose gravel drains around foundations should be installed at what height?

A

6” inches above the top of the footing

101
Q

Foundation walls that retain earth and enclose interior spaces and floors below grade shall be______from the top of the footing to the finished grade?

A

Dampproofed

102
Q

Name two of the options for waterproofing in areas where a high water table exist?

A

2-ply hot-mopped felts of 55 pound roll roofing

103
Q

What type of film shall be applied over the below-grade portion of exterior foundation walls prior to backfilling?

A

A 6-mil thick polyethylene

104
Q

The minimum net area of ventilation openings shall not be less than 1 square foot for each?

A

150 sq. ft. of under-floor space area.

105
Q

One foundation vent shall be within how many feet of each corner of the building?

A

3’ feet

106
Q

What are the minimum size openings for access to under-floor spaces?

A

Openings through the floor shall be a minimum of 18” x 24”, and openings through a perimeter wall shall be a minimum of 16” x 24”.

107
Q

When must all construction material be removed?

A

Before a building is occupied

108
Q

The fished grade of under-floor surface may be located where?

A

At the bottom of the footings

109
Q

(1 )What is the maximum load for floor joist that support sleeping areas and attics that are accessed by means of a fixed stairway?
(2) What is the load limit for all other rooms?

A

(1) A live load of 30 psf. and a dead load of 20 psf.

(2) A live load not to exceed 40 psf., and a dead load of 20psf.

110
Q

Floor cantilevers shall not exceed________?

A

The nominal depth of the wood floor joist

111
Q

The ends of each joist, beam or girder shall have not less than how many inches bearing on wood or metal?

A

1.5” inches

112
Q

The ends of each joist, beam or girder shall have not less than how many inches bearing on masonry or concrete?

A

3” inches

113
Q

When attaching wood joist to a wood girder, the wood ledger strip supporting the joist shall not be less than?

A

Nominal 2” x 2” inch

114
Q

Notches in solid lumber joist, rafters and beams shall not?

A

Exceed 1/6th the depth of the member, be longer than 1/3rd the depth of the member, or be located in the middle 1/3rd of the span.

115
Q

The diameters of holes cut into wood members shall not exceed?

A

1/3rd the depth of the member

116
Q

Notches at the end of the member shall not exceed what depth of the member?

A

1/4th

117
Q

What distance should holes be from the top or bottom of the member to any other hole?

A

2” inches

118
Q

Header lengths more than 4 feet must be?

A

Doubled

119
Q

Header lengths more than 6 feet must also have what?

A

A hanger at each end

120
Q

What is required before altering a truss member in any way?

A

Approval of a registered design professional

121
Q

What is the minimum allowable thickness for particle board floor underlayment?

A

1/4” inch

122
Q

With regard to site preparation, the area between the foundation walls shall?

A

Have all vegetation and topsoil removed

123
Q

Concrete slab-on-ground floors shall be a minimum of?

A

3-1/2” inches thick

124
Q

True or False: The area within the foundation walls shall have all vegetation and foreign material removed?

A

True

125
Q

What are the maximum fill depths?

A

24” for clean sand or gravel and 8” for earth.

126
Q

The minimum thickness for polyethylene vapor barrier in floor slabs shall be?

A

6 mil

127
Q

The minimum overlap of joints for polyethylene in floor slabs when used as a vapor barrier shall be?

A

6” inches

128
Q

When building built-up girders and beams:

A

use 2 rows of 10d nails, 32” on center staggered

129
Q

What is the proper spacing of nails along the edge of plywood sheathing?

A

6” inches

130
Q

End joints in top plates shall be offset (staggered) at least:

A

24” inches

131
Q

When the rafter spacing is more than 16” and the stud spacing is 24” on center, joist, trusses and rafters must rest on top plates within how many inches of a stud?

A

5” inches

132
Q

True or False: Studs shall have full bearing on a nominal 2-by or larger plate or a sill having a width at least equal to the width of the studs?

A

True

133
Q

What is the maximum size notch that can be cut into a 2 x 4 load bearing wall stud?

A

25%

134
Q

What is the maximum size hole that can be bored into a 2 x 4 non-load bearing wall?

A

60% or 2.1”

135
Q

Steel studs with a designation of 350S162-t are how wide?

A

3.5” inches

136
Q

What is the minimum size of studs for light frame Cold-formed steel walls?

A

1-5/8” x 3-1/2” or 1.625” x 3.5”

137
Q

Where are holes in load bearing steel wall framing members permitted?

A

Only along the centerline of the web of the framing member.

138
Q

What is the minimum center-to-center spacing of holes in load-bearing steel wall framing?

A

Not less than 24” inches

139
Q

What is the maximum width and length for holes in load bearing steel wall framing members?

A

The width can be no greater than 0.5 times the member depth, or 1-1/2” inches, and it shall not have a length exceeding 4-1/2” and shall have a minimum distance between the edge of the bearing surface and the edge of the hole of not less than 10” inches

140
Q

The minimum thickness of masonry bearing walls more than one story high shall be:

A

8” inches

141
Q

Solid masonry walls of one-story dwellings and garages shall not be less than:

A

6” inches

142
Q

Unreinforced SOLID masonry parapet walls shall not be less than how thick and how high?

A

Not less than 8” inches thick and shall not exceed 4 times their thickness in height

143
Q

Unreinforced HOLLOW masonry parapet walls shall not be less than how thick and how high?

A

Not less than 8” inches thick and shall not exceed 3 times their thickness in height.

144
Q

The unsupported height of masonry piers shall not exceed what height?

A

10 times their least dimension

145
Q

The unreinforced masonry where masonry units are laid in a stack bond, longitudinal reinforcement consisting not less than two continuous wires each shall be provided in horizontal bed joints spaced not more than how many inches on center vertically?

A

16” inches

146
Q

Masonry walls shall be anchored to roof structures with:

A

1/2 “ inch bolts spaced not more than 6 feet apart

147
Q

What are the requirements for vertical reinforcement for masonry elements?

A

They shall consist of at least one No. 4 bar spaced not more than 48” inches and vertical reinforcement shall be located within 16” inches of the ends of masonry walls.

148
Q

What is the maximum spacing for masonry reinforcement for walls that are solid grouted and constructed of hollow open-end units?

A

48” inches

149
Q

What is the maximum spacing for masonry reinforcement for walls that are NOT solid grouted and constructed of hollow open-end units

A

24” inches

150
Q

What is the maximum spacing for shear wall reinforcement?

A

The smaller of one-third the length of the shear wall, one-third the height of the shear wall or 48” inches.

151
Q

What is the minimum bearing for beams and girders supported by a wall or column?

A

At least 3 inches on solid masonry or 4” inches on a metal bearing plate

152
Q

What is the minimum bearing for joists?

A

1 1/2” inch

153
Q

Unless otherwise required or indicated on the project drawings, head and bed joints shall be how thick?

A

3/8” inch

154
Q

What is the maximum distance between adjacent full-length solid masonry headers?

A

Full-length headers shall not exceed 24 inches either vertically or horizontally.

155
Q

Where two or more hollow block are used to make up the thickness of a wall, the stretcher courses shall be bonded at vertical intervals not exceeding how many inches?

A

34” inches

156
Q

Where metal wall ties are embedded in the horizontal mortar joints, there shall be at least one metal tie for each:

A

4 1/2 square feet

157
Q

When bonding with ADJUSTABLE wall ties, there shall be at least one wall tie per how many square feet?

A

2.67 square feet

158
Q

What is the maximum amount of time in which grout can be placed after water has been added?

A

1 1/2 hours

159
Q

The specified thickness of a standard glass block unit shall be at least:

A

3 7/8” inches

160
Q

The specified thickness of a thin glass block unit shall be at lease

A

3 1/8” inches for hollow units and 3” inches for solid units

161
Q

What is the maximum area of each glass masonry individual thin-unit panel?

A

85 sq. ft.

162
Q

What is the proper thickness of head and bed joints in glass block masonry

A

1/4” inch

163
Q

Using 5/8” drywall on walls with 24” on-center spacing of supports, what is the proper spacing of drywall screws?

A

12” inches

164
Q

What type drywall screws should be used

A

Type W or Type S, or if metal studs are used the screws must be number 6 or greater.

165
Q

What type of barrier should be applied over studs or sheathing of all exterior walls?

A

One layer of 15 lb felt or other approved water-resistive barrier

166
Q

What is the minimum length of bearing of lintels?

A

4” inches

167
Q

When using wall ties in a non-seismic area, the maximum spacing of wall ties shall be:

A

24’ inches on center supporting not more than 2.67 square feet.

168
Q

The veneer shall be separated from the sheathing by an air space between of how many inches?

A

A minimum of 1 inch, but not more than 4 1/2” inches

169
Q

Where should flashing be located on a masonry wall?

A

Beneath the first course of masonry above the finished ground level above the foundation wall or slab and other points of support

170
Q

Weepholes shall be provided in the outside wythe of masonry walls at a maximum spacing of:

A

33” inches

171
Q

Treated lWall plates used to umber shall be dried to a moisture content of

A

19% or less

172
Q

What is the nominal thickness of a ridge board

A

1 inch nominal thickness and not less in depth than the cut end of the rafter.

173
Q

Rafter ties shall be what size?

A

A minimum of 2” inches x 4” inches

174
Q

Ends of ceiling joists shall be lapped a minimum of how many inches?

A

3” inches

175
Q

What are the requirements for notches in joists, rafters, and beams?

A

Notches shall not exceed 1/6th the depth of the member, shall not be longer than 1/3 the depth of the member and shall not be located in the middle third of the span. Notches at the ends of the member shall not exceed 1/4th of the depth of a member. Holes shall not be closer than 2” inches to the top or bottom of the member or to any other hole or notch

176
Q

How should rafters and ceiling joists be supported?

A

Laterally by solid blocking and diagonal bridging or a continuous 1” inch X 3” inch wood strip nailed across the rafters or joists at intervals not exceeding 8’ feet

177
Q

What is the maximum ceiling joist span when using 12” inch spacing and Southern Pine SS 2 x 4s?

A

12’ feet 11” inches

178
Q

Wall plates used to connect trusses, shall have a resistance to uplift of not less than how many pounds.

A

175 lbs

179
Q

What must be designed to transmit the uplift forces from the rafter or truss ties to the foundation?

A

A continuous load path

180
Q

What is the minimum net free ventilating area?

A

It shall not be less than 1/150th of the area of the space being ventilated.

181
Q

Buildings shall have an attic access where attic areas exceed 30 sq. ft. and have a vertical height of:

A

30” inches or greater.

182
Q

Where must you install a cricket or saddle.

A

On any chimney or penetration more than 30” inches wide perpendicular to the slope.

183
Q

What is the minimum slope of a roof when using asphalt shingles?

A

2:12

184
Q

What is the minimum gage for roof fasteners for asphalt shingles

A

12 gage

185
Q

What is the minimum number of fasteners for asphalt shingles?

A

4 fasteners per strip or 2 fasteners per individual shingle

186
Q

When using a single layer of felt underlayment, the minimum roof slope for asphalt shingles shall be

A

33% (4:12) or greater

187
Q

On asphalt roofing in areas where there has been a history of ice dams what shall be used in lieu of normal underlayment?

A

An ice barrier that consists of at least two layers of underlayment cemented together, or a self-adhering polymer modified bitumen sheet

188
Q

The minimum gage of galvanized steel metal roof valley flashing use on an asphalt roof is:

A

26 gage

189
Q

What is the minimum width of an open metal valley lining on an asphalt roof?

A

24” inches

190
Q

The installation of clay roofing tile shall comply with?

A

ASTM C1167

191
Q

What is the minimum gage nail to be used for tile roofs?

A

11 gage

192
Q

What is the minimum distance clay roof flashing must extend from the centerline?

A

11” inches

193
Q

What is the minimum roof slope required for the installation of metal roof shingles

A

25%

194
Q

What is the minimum roof slope for mineral surfaced roll roofing?

A

1:12

195
Q

What is the minimum roof slope for slate shingles

A

4:12 or 33%

196
Q

How many nails are required for each wood shakes or shingles?

A

2 nails

197
Q

The proper spacing for wood shingles is:

A

1/4” inch minimum and 3/8” inch maximum

198
Q

What is the minimum roof slope for wood shakes

A

3:12

199
Q

What is the minimum side lap for wood shakes between joints in adjacent courses?

A

1 1/2” inches

200
Q

The minimum roof slope for built-up roofs shall be 1/4:12 with what exception?

A

Exception: Coal-tar built-up roofs can have a slope as low as 1/8:12 (1%)

201
Q

What is the minimum roof slope for lapped, non-soldered seam metal roofs without lap sealant

A

3/12 (25%)

202
Q

What is the minimum roof slope for standing seam roof systems

A

1/4:12 (2%)

203
Q

What is the minimum slope for lapped, non-soldered seam metal roofs with applied lap sealant

A

1/2:12 (4%)

204
Q

When can you reinstall existing slate clay or cement tile?

A

When it is not cracked, damaged or broken

205
Q

Masonry chimneys shall be supported on foundations of solid masonry or concrete at least 12 inches thick and should extend how many inches beyond each side of the exterior dimensions?

A

6” inches

206
Q

Where shall the fireplace throat or damper be located?

A

A minimum of 8” inches above the lintel

207
Q

In the table for masonry fireplace and chimney table, what is the required clearance above the roof?

A

3’ feet at roofline and 2’ feet at 10’ feet.

208
Q

What is the minimum length of bearing of lintels

A

4” inches

209
Q

What is the minimum thickness of a fireplace hearth?

A

4” inches

210
Q

Where a fireplace opening is less than 6 square feet, hearth extensions shall extend how far to the front and to the sides?

A

16” inches to the front and 8 inches to the sides

211
Q

Where a fireplace opening is more than 6 square feet, hearth extensions shall extend how far to the front and to the sides?

A

20” inches to the front and 12” inches to the sides.

212
Q

Woodwork or other combustible materials shall not be placed within how many inches of a fireplace opening?

A

6” inches

213
Q

In a masonry fireplace, what are the minimum clearances for for all wood beams, joists, or studs?

A

A minimum of 2” inches from the front faces and sides and 4” inches from the back of the fireplace.

214
Q

The minimum thickness of a masonry fireplace foundation is:

A

12” inches

215
Q

Chimneys shall extend at least 2 feet higher than any portion of a building within how many feet?

A

10’ feet

216
Q

Any portion of a masonry chimney located in the interior of the building or within the exterior wall of the building shall have a minimum air space clearance of at least how many inches?

A

2” inches

217
Q

Chimneys shall be provided with crickets when the dimension parallel to the ridgeline is greater than____ inches and it does not intersect the ridgeline.

A

30” inches

218
Q

When using blown-in or sprayed on roof or ceiling insulation, how must it be marked?

A

Thickness in inches shall be written on markers that are installed at least one for every 300 feet.

219
Q

How often shall markers be placed in an attic to show the amount of blown insulation?

A

Every 300 square feet

220
Q

What minimum R-value is required for ceilings?

A

R-30

221
Q

What is the minimum passageway for attics containing appliances?

A

They must have a clear and unobstructed passageway large enough to allow removal of the largest appliance, but not less than 30” high and 22” wide and not more than 20’ feet in length. A level service space at least 30” x 30” shall be present along all sides of the appliance where access is required.

222
Q

What is the minimum passageway for underfoor spaces containing appliances?

A

The passageway must be large enough to remove the largest appliance, but not less than 30” x 22” nor more than 20 feet in length.

223
Q

Appliances supported from the ground shall be level and firmly supported on a concrete slab. Appliances suspended from the floor shall have a clearance of at least how many inches from the ground?

A

6” inches

224
Q

For heating and cooling equipment, when is a second drain pan required?

A

Where damage to any building components will occur due to a result of overflow.

225
Q

What must 4-inch diameter exhaust ducts be made from?

A

Rigid metal

226
Q

Freestanding and built-in ranges shall have a vertical clearance above the cooktop of not less than how many inches to unprotected combustible material?

A

30” inches

227
Q

Shower receptors shall have a finished curb (threshold) of at least ____ above the sides and back of the receptor?

A

1” inch

228
Q

A shower curb shall not be less than ______ inches, and no more than ____ inches high?

A

2” inches and 9” inches

229
Q

Conductors that are to be spliced shall have a minimum of 6 inches of free conductor at each outlet. Where the opening to an outlet, junction or switch point is less than 8 inches in any dimension, each conductor shall be long enough to extend at least how many inches outside of such opening?

A

3” inches

230
Q

What do you call a device intended for the protection of personnel that functions to de-energize a circuit or portion thereof within an established period of time when a current to ground exceeds the value for a Class A device?

A

Ground-fault interrupter

231
Q

What do you call a complete lighting unit consisting of a lamp or lamps together with parts designed to distribute the light, to position and protect the lamps and ballast, where applicable, and to connect the lamps to the power supply?

A

Luminaire

232
Q

What is a compartment or chamber to which one or more air ducts are connected and that forms part of the air distribution system called?

A

Plenum

233
Q

How many 20 amp circuits are required in kitchens, pantry, breakfast or dining areas?

A

Two

234
Q

What size circuit is required for bathroom receptacles?

A

A minimum of one 20 amp circuit

235
Q

A wall space shall include any space that is ___ how many feet or more in width and that is unbroken along the floor line by doorways, fireplaces and similar openings?

A

2’ feet

236
Q

What must be installed at each conductor splice point, outlet, switch point, junction point and pull point?

A

A box or conduit body

237
Q

Access gates for outside pools must be equipped with what?

A

Self-closing and self-locking gates opening away from pool. Lock mechanism located inside the gate.

238
Q

Where an above ground pool is used as a barrier the ladder must be able to?

A

Be secured, locked, or removed

239
Q

What is the minimum slope on which clay tile can be installed?

A

2 1/2 : 12

240
Q

hat depth does a pool have to be in order for it to be classified officially as a swimming pool?

A

24” inches

241
Q

If a pool is directly accessible from the dwelling, what must be in place?

A

An alarm wich produces an audible warning when the door and/or its screen are opened

242
Q

What should be used as the primary power source for smoke detectors?

A

The building wiring with battery back up

Contractors Exam (12 decks)

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