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4th Year > 4th Year Carpenter Review Module > Flashcards

4th Year Carpenter Review Module Flashcards

1
Q

The amount that a hip rafter is backed or dropped is a function of what to things

A

Roof slope and rafter thickness

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2
Q

The shortening of the top end of a hip rafter is one half diagonal of what roof member?

A

Common rafter

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3
Q

What is the minimum clearance between wood framing and masonry fireplace?

A

50 mm

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4
Q

What is the main advantage in using air-entrained concrete

A

Reduces the effect of freeze-thaw cycles

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5
Q

Water for concrete should be of what quality

A

Potable

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6
Q

The strength of concrete prior to proper curing is most affected by what?

A

Water/cement ratio

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7
Q

What is the purpose of construction joints

A

To stop the place of concrete at a pre determined place

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8
Q

What is the purpose of isolation joints

A

Allows separation of 2 concrete members to allow independent movement

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9
Q

Why are bulk heads installed in forms

A

To stop the placement of concrete at a pre determined place

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10
Q

water-stop is normally found in conjunction with what type of joint?

A

Construction joint

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11
Q

Post and beam construction is defined as having members at what minimum on center spacing

A

Over 600mm o/c

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12
Q

What is the primary purpose of reinforcing rods in concrete structures

A

To resist tension and sheer

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13
Q

Rotating or a twisting action that is prevalent in tall columns is called what type of force?

A

Torsion

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14
Q

What type of butt hinges are required for exterior doors that swing out

A

NRP hinges : a hinge with a non removable pin

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15
Q

What type of butt hinges are required for exterior doors that swing out

A

NRP hints : a hinge with a non removable pin

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16
Q

Holes in a solid lumber floor joists should be in what portion of the joist

A

Middle. Max hole diameter is 1/4 depth of joist

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17
Q

What is the primary purpose of cross bridging

A

Joist restraint- To keep joists upright

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18
Q

Double doors without a center mullion, leading to an exit require what hardware

A

Panic hardware flush bolts and an astragal

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19
Q

At what height do scaffolds require a toe board?

A

3.5 m

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20
Q

What is the minimum thickness of concrete that can be used in a basement floor

A

75mm

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21
Q

Define rafter run

A

Out side of wall to centre of ridge

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22
Q

Define rafter span

A

Edge of support to edge of support (horizontal)

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23
Q

The name “Portland cement” refers to what?

A

The binding ingredient (adhesive) that reacts with water in concrete prior

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24
Q

Dead loads as applied to floor systems are defined how?

A

The weight of all permanent components of a building

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25
Q

Concrete forms that are subjected to extreme lateral pressure can have deflection reduced by what procedures

A

Reduced tie spacing more walers slower rate of pour less vibration and warm temperature

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26
Q

Hydrostatic pressure in forms is influenced most by what factors

A

Water/cement ratio (slump) height of pour, vibration and ambient temperature

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27
Q

Define rate of pour

A

The rate (speed) at which concrete is placed in forms influenced most

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28
Q

Concrete footing width and depth is based upon what primary conditions

A

Total weight of building and soil conditions

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29
Q

Define the term spandrel beam

A

Concrete beam at exterior of building resting on columns

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30
Q

What is the primary function of a spilt ring connector

A

Wood-wood connection : transfer load from one member to the next

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31
Q

How does a shear plate differ from a split ring connector

A

Sheer is taken on by bolts rather than the member itself

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32
Q

What is the maximum vertical rise for one lift in a step footing

A

600mm

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33
Q

Define a stile

A

Vertical member in a raised panel doors or wall treatments

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34
Q

Define a rail

A

Horizontal member in a raised panel door or wall treatments

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35
Q

Define a muntin

A

Decorative grid patterned bars on windows

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36
Q

Describe nailing pattern for plywood subfloor

A

150 edges 300 on the field

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37
Q

What is the most common cause for squeaky floors

A

Lumber shrinkage around fasteners (nails)

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38
Q

Ceiling joists placed on top of walls that are framed with a single top plate must be within what distance of a stud

A

50mm

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39
Q

What is a party walls

A

Sound/ fire separation between 2 dwelling units

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40
Q

What is the minimum air space that is required between brick vaneer and wall sheathing

A

25mm

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41
Q

Building paper when applied to walls must have what minimum lap?

A

100mm

42
Q

Interior load bearing walls supporting a second floor must be within what distance of a support

A

600mm

43
Q

If common rafters are 38x140 the hip and valley rafters must be what size

A

50mm greater than commons

44
Q

What is the maximum length for collar ties before they need to have a cross tie to

A

2.4

45
Q

Suspended ceiling crossties are inserted into the main tees on what side of the slot

A

Left side

46
Q

What is the recommended size for suspended ceiling border tiles

A

Greater than 1/2 tile dimensions

47
Q

What is the minimum that flashing must extend up under wall sheathing paper

A

50mm

48
Q

What is the minimum that eave protection must extend in beyond the wall

A

300mm

49
Q

Eave projection may be eliminated if the overhang is over what measurement

A

Greater then 900mm

50
Q

What is the minimum width of a residential stair

A

860mm

51
Q

What is the maximum moisture content for framing lumber

A

19%

52
Q

What type of concrete should be used in alkaline soils

A

Type50

53
Q

What is the primary purpose of crossbracing of shoring

A

To increase lateral stability

54
Q

What is the recommended splice for rebar expressed in bar diameter?

A

24 times diameter for walls/slabs 20 times diameter for columns

55
Q

Rebar is used to increase the strength of concrete and resist what force

A

Tension

56
Q

temperature bar is used and at what location are they placed?

A

To resist cracking and near the top of the slab

57
Q

What is the purpose of underpinning?

A

Extend foundation to new lower section

58
Q

What condition must soil be prior to casting footings?

A

Undisturbed and not frozen

59
Q

What is the minimum depth for a foundation?

A

1.2 m in clay soils

60
Q

What is the minimum thickness of a footing by code?

A

100 mm

61
Q

What is the minimum thickness of a foundation wall by code?

A

150 mm

62
Q

What type of nails are required when sheeting a preserved wood foundation

A

Corrosion resistant

63
Q

What is used to support basement floor joist in a wood foundation?

A

Pressure treated sleepers

64
Q

What is a gullet?

A

Spacing between saw teeth

65
Q

What are the top, side and bottom clearances for interior doors?

A

2 mm top and sides 19 to 25 mm at bottom

66
Q

How does the cold air return to the furnace in a residential house?

A

Through cold air returns

67
Q

What is the minimum fire rating of a door?

A

20 minutes

68
Q

How do you identify a fire rated door?

A

Label

69
Q

Which way does a fire rated door swing?

A

Direction of egress

70
Q

How are metal door jam secured in a masonry wall?

A

Metal clips embedded in mortar

71
Q

What is the minimum width of a door to the first bathroom in a dwelling unit?

A

760 mm

72
Q

Does a bathroom require a window and can a bathroom have a cold air return

A

The answer is no for both of them

73
Q

What is the correct first response if you find a worker that is unconscious

A

Check for hazards

74
Q

What purpose does a mud sillserve when it is placed under adjustable shoring

A

Ask as a footing to distribute load over a larger area

75
Q

Define the term astragal can it be used to reduce sound penetration?

A

Moulding or plate that cover gap between double doors

76
Q

What is an open cornice?

A

No soffit visible rafter tails

77
Q

What is a closed cornice

A

Soffit on underside over rafter tails

78
Q

What is a reglet

A

a groove made in concrete or masonry to receive flashing

79
Q

Define hydrostatic pressure

A

Water pressure within soil

80
Q

What kind of column forms are subject to torsion and what is done to counteract as force?

A

Square columns braced in two directions

81
Q

What is the maximum width of a stair without riser material

A

Private 900 mm
public not allowed

82
Q

What is required at the inside corner of a winder stair?

A

Newell post or wall

83
Q

What type of joint is used at the inside corner of bevel wood siding

A

Butt to vertical strip and caulk

84
Q

What must be used where metal siding butts up against a masonry chimney?

A

Caulking

85
Q

What should you set a mitre gauge to make a cut of 60° on a table so

A

30°

86
Q

How are fire doors hinged?

A

Swing in direction of egress

87
Q

At what point does an excavation become a trench?

A

When the depth is greater than the width

88
Q

How does architectural concrete differ from structural concrete?

A

Architectural – visible and must have good finish
Structural – more focus on strength

89
Q

What is the difference between a datum point and a benchmark?

A

Datum– officially register registered
Benchmark – job site reference

90
Q

What type of joint is between a transom panel and an active door?

A

Rabbet

91
Q

What is the maximum projection of masonry units past their support

A

25 mm

92
Q

Why do you require more bracing on formwork that has only one form

A

No ties to equalize the pressure on two sides

93
Q

What is a light duty scaffold?

A

122 kg/m² max load

94
Q

What is a heavy duty scaffold?

A

376 kg/m² max load

95
Q

Explain curtain walls

A

Non-loadbearing exterior walls

96
Q

The spacing for butt joints in hardboard siding is

A

Minimum 5 mm
OSB 3 mm
Plywood 2 mm

97
Q

What are the two grooves under a window for?

A

To prevent water penetration

98
Q

What is the side lap of wood shakes?

A

40mm (6 to 9 mm space between them)

99
Q

Hooks on a sling for lifting are always orientated

A

Outward

100
Q

Maximum aggregate is 3/4 the distance between rebar and form true or false?

A

True Max 1/3 slab thickness
Max 1/5 wall width

101
Q

To bring the cornice of an unequal slope to the same level as main roof cornice one would do what

A

Raise minor roof wall height

4th Year (6 decks)

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