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apprenticeship > H-line > Flashcards

H-line Flashcards

1
Q

How do you calculate supported joist length

A

half clear spans of joists on each side of beam
+plus the beam with
.5 x joist length + beam width + .5x joist

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2
Q

How do you calculate the supported joist length for buildings for more than one beam

A

Each beam calculated separately

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3
Q

Are beam lengths in the codebook Imperial or metric

A

Metric

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4
Q

If the size of the beam is unknown how do you calculate that supported joist length

A

Assume the beam is three ply

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5
Q

What is the definition of the supported joist length

A
  • The amount of load that a beam carries is proportional to the amount of floor that it supports.
  • The amount of floor is the S.J.L.
  • The S.J.L. is a distance equal to the length of joist supported by the beam
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6
Q

Why have framing systems been developed ?

A

To construct low rise residential and commercial buildings up to 3 floors

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7
Q

On which framing system is the standard stud length based

A

Standard platform framing

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8
Q

Which framing system is used to create large open spaces

A

Post, beam, plank construction

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9
Q

Why would the foundation design be different for post, beam and plank framing?

A

To support concentrated loads

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10
Q

Which framing system is the fastest to construct

A

Platform frame construction

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11
Q

Which framing system requires its components to be designed by registered professional engineer

A

Post, beam, plank construction

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12
Q

Which part of building code covers the design of platform framing

A

Part nine

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13
Q

Which type of framing system usually uses wood trusses

A

Platform frame construction

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14
Q

What must be done if changes are made to the structure of a woodframe

A

A complete review of design

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15
Q

Went to exterior finishes require special attention to shrinkage and settling

A

Masonry veneer and cement stucco

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16
Q

What is formed when two roofs intersect

A

Valley

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17
Q

What is done to allow the attic space to be used for living space

A

Building gable dormers with windows

18
Q

What is another name for cripple stud

A

Trimmed stud

19
Q

What are purlins

A

Beams used to support rafters or ceiling joists that run at right angles to rafters

20
Q

What are the purposes of Girts

A

Blocking that stiffen the wall or acts as fire stops

21
Q

With three functions does sheathing provide

A

Supports the finishes
Laterally supports the studs, joists or rafters
Braces the floor, wall or roof diagonally

22
Q

How does a greater differ from a beam

A

It is a large beam

23
Q

Explain the difference between a header and a trimmer and floor framing

A

Headers are perpendicular to the floor joist

Trimmers are parallel

24
Q

What are two types of studies that are not full

A

Cripple, Jack

25
Q

List three members that can be used to support the ceiling finish

A

Ceiling joists, ceiling rafters, roof joists

26
Q

Where are collar ties used

A

Used to strengthen rafters and reduce unsupported span

27
Q

What are airspaces

A

The gaps are on the ends of members such as a beam pocket allowing air to circulate and preventing decay

28
Q

What does the term breaking joints mean

A

Describe staggering the joints in cheating or top plates usually offset by 4 feet but according to code by 2 studs or more

29
Q

What is a cornice

A

I would projection of the roof where it meets the wall

30
Q

What is a camber

A

And upward curve built into it to prevent sagging the due to its own weight or its load

31
Q

What is a soffit or plan over

A

The underside of a building component

32
Q

When is another name for cornice

A

And eave

33
Q

What is a gable

A

The triangular shaped end of the gable roof

34
Q

What is the purpose of a rough opening

A

To allow for doors windows there’s other items

35
Q

What is the density of wood

A

500 to 600 kg cubed

36
Q

What is the density of steel

A

8000 kg cubed

37
Q

What is the density of concrete

A

2400 kg cubes

38
Q

Why does using wood for window fans reduce condensation on the inside surfaces

A

Doesn’t sweat when exposed to differences in temperature

39
Q

How long does it take for Wood to mentor to a size that it can be harvested

A

40 to 100 years

40
Q

List five engineered building products

A

Particleboard, waferboard, dense fiberboard, parallel strand beams, plywood

41
Q

What happens to Wood when exposed to atmospheric changes

A

Swells or shrinks

42
Q

How can a wood beam and that sporting events steel beam after a fire

A

It burns slower than the HoT MetaL weakening

apprenticeship (4 decks)

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