Ladders, Scaffolds and Lifts 110101d Flashcards
What is accountable for 25% of loss time workplace claims?
Falls
Which stepladder may be used by two workers at the same time?
Double or Twin step ladder
What is the maximum capacity of an extra heavy-duty industrial type ladder?
300lb
What factors determine the ladder you choose for a job?
Type of project, Height you will be working at.
Which type of material is best suited for working near electricity or overhead power lines?
Fiberglass
The side rails of a portable extension ladder should extend at least
1 METRE above a platform, landing or parapet.
What colour should a wood ladder be painted?
Are not to be painted, other than by being preserved with a transparent protective coating.
What is the most widely used scaffold system?
Frame Scaffolds
Which part of the scaffold system must be matched to site conditions?
The base
Name two (2) types of suspended scaffolds.
-Work cage or Bosun’s chair
-Swingstage
12, Most construction sites do not require licensed certified people to operate lifts.
False
Name three (3) ways material lifts can be powered.
-Manually
-C02 Bottle
-Compressed Air
An employer shall ensure that the height of a rolling scaffold is not more than _____ times the dimension of it’s smallest base.
3
List five (5) factors to consider when choosing the correct scaffold for a job.
-Availability
-Cost
-Workforce Expertise
-Site parameters
-Expected loads, Terrains
What is the ratio for ladder positioning?
4 to 1
1 metre for every 4 metres of length
It is okay to stand above the second step from the top of a stepladder?
False.
Except ladder is equipped with a railed platform
Always ensure that the front section of a stepladder is used in the open position is no steeper than a ratio of?
6-to-1
______ are generally described as temporary elevated work platforms.
Scaffolds
Five scaffolding systems typically used in industry are
-Frame scaffolds
-Free-standing or rolling
-Tube and coupler
-Modular system scaffold
-Suspended scaffold
The most common frame widths are
3’ (0.914m) and 5’ (1.524m)
The most common frame heights are
5’ (1.524m) 6’-6”’ (1.981m)
_____ connects two frames and provides lateral support and rigidity.
Crossbracing
_____ are called runners or ledgers
Horizontal tubes
_____ also called braces, hold the scaffold plumb and square
Diagonal tubes
Platforms supported by wire ropes are called?
Suspended Scaffold
An employer must ensure that a scaffold is designed and constructed to support at least _____ times the load that may be imposed on it.
4
A guardrail required by this regulation must have a horizontal top member that not less than _____ nor more than _____ above the base of the guardrail.
920 mm , 1070 mm
A toe board required but regulation is not less than _____ in height above the surface of the work area
140 mm or 5.5 inches
The space between the bottom of the toe board and the surface of the work area is not more than _____ high
6mm or 1/4 inch
An employer must ensure that a solid sawn lumber scaffold plank is sized _____ lumber
51mm x 254mm / 2” x 10”
An employer must ensure that a scaffold plank extends no less than _____ and not more than _____ beyond a ledger
150mm / 5.9” inches
300mm / 11.8” inches
An employer must ensure that all light duty scaffold platforms are not less than _____ wide
500mm
An employer must ensure that heavy duty scaffold platforms are not less than _____ wide
1 m
