E1 Flashcards

Ladders and scaffolding

1
Q

a stairway must be provided to each new floor before work starts on that level true or false ?

A

true

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2
Q

temporary access ramps must be at least _____ wide with a max slope of ________

A

20in and 1:5

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3
Q

max spacing of cleats on a sloped ramp is

A

400mm

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4
Q

walkways must be a minimum of ______ wide

A

500mm

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5
Q

temporary stairs require hand rails when

A

there are more than 4 risers

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6
Q

using part 4 of the O.H.S the top rails must be able to

A

withstand a point load of 125lbs in any direction, span no more than 8ft, or 10 ft for scaffold, and be between 40 - 44” above the travel and work surfaces

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7
Q

what’s the minimum width of a wooden scaffold plank?

A

235mm or 9 1/4”

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8
Q

what’s the minimum height of a guardrail

A

40in

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9
Q

above what height does a scaffold require a guardrail

A

10ft

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10
Q

what’s the max that a scaffold plan can project beyond its support

A

12”

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11
Q

what’s the max span for a wooden guardrail?

A

up to 8ft for 2x4 and up to 10 ft for 2x6

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12
Q

what’s the max slope, vertical to horizontal, that’s allowed for a work platform

A

1:5

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13
Q

what’s the max gap allowed under a toeboard

A

1/2 “

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14
Q

what’s the min width allowed for a scaffold work platform?

A

2 plank widths

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15
Q

what’s the min amount that a scaffold plank may project beyond its supports

A

150mm or 6in

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16
Q

what’s the max spacing allowed for supports or scaffold planks of the scaffold is to be used by a bricklayer?

A

7ft or 2100mm

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17
Q

the type of nail used in the construction of wooden scaffold is

A

duplex

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18
Q

best length of nail to use if the ledge is 19mm is

A

2 1/4

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19
Q

best location for the 38x140mm bearer may have in light duty work is

A

5ft or 1500mm

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20
Q

the minimum size that a bearer block is allowed to be is

A

2x6 or 38x140 mm

21
Q

the minimum size of lumber used for toeboards is

A

1x4 or 19x89mm

22
Q

an 89x89mm (4x4) upright is required

A

When the height of the scaffold exceeds 6m or 20ft

23
Q

the maximum distance between the horizontal building ties is

A

21ft or 6.4m

24
Q

What are the 2 basic structural components of steel scaffolding?

A

end frame and braces

25
bolts or pins must be placed through the end frames when the scaffold is higher than 1 unit. true or false ?
true
26
the All round scaffolding system uses a
rosette and wedge
27
the Allround system requires an
adjustable base and collar
28
handrails and midrails in the Allround system
are automatically set by the Rosettes
29
minimum width of a swing state platform is
20"
30
thrust out beams supporting swing stages must be counter balanced with weights equal to
4 times the static load
31
hangers or stirrups used to support swing stages must be made from
mild steel or similar
32
max load on a swing state suspension rope must not exceed
1/10 of its breaking strength
33
19mm (3/4") synthetic rope for suspending a swing stage must have a breaking strength of
22kN (5000lbs)
34
wire rope used to suspend swing stages must provide a safety factor or not less than
10
35
the length of a suspension rope must be enough to provide for
a safe lower landing
36
a hard tire scissor lift may only be us3d
on hard smooth surfaces
37
before using a scizzor lift for the first time
get training, check maintenance and controls and look for hazards, review operators Manuel
38
side rails shall be _____ for ladders up to 5m (16ft) long
2x4
39
side rails must be ________ for ladders up to 24ft long.
2x6
40
cleats must be _________ for ladders up to 16ft long.
1x3
41
cleats must be ________ for ladders up to 24 ft long
1x4
42
Is it safe practice to notch out side rails for cleats
no never could be dangerous
43
What's the distance that should be between the side rails?
15-20 " or 380- 500mm
44
How many workers are aloud on a ladder back scaffold at 1 time?
2 max
45
What type of work is ladder jacks made for ?
light duty and short duration work
46
How wide can the work platform be for ladder jack scaffolding ?
12" wide
47
if a manufactured scaffold is used it may span up to ______ between supports
7.3m or 24ft
48
if a lumber planks used on ladder jack scaffolding how wide can it be ?
must be 2x12 and supported every 3m or 10ft
49
workers must tie off after ________ ft
10