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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?

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?

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?

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?

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?

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?

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?

133
Q

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

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.

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?

184
Q

What is the minimum gage for roof fasteners for asphalt shingles

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:

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?

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

194
Q

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

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?

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

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?

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?

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?

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?

233
Q

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

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?

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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