ladders scaffold and lifts

All portable ladders must be approved by?

The canadian standards association (CSA) or the American National Standards Institute (ANSI)

What is accountable for 25% of lost time workplace claims?

Falling

Characteristics of stepstools?

Lightweight, sturdy and compact. Unlike regular ladder you can step on the top.

Characteristics of Portable Work Stands (drywall sawhorse)

They have steps on both sides. They're extra width provides the versatility necessary for them to be used as portable work stands, seahorses, or material supports.

Single step ladder characteristics?

Most popular ladder of all styles and are for applications at low to medium heights. Accessories are available for holding tools and small parts.

Double or twin step ladders (two-person ladder) characteristics?

They have steps on both sides for two way access. This can extend the user's work area or allow two people to work on a task.

Platform ladders charactoristics

Provide a large standing surface that allow for more comfortable working at a fixed height.

Single ladders charactoristics?

Single-section, non-extendable ladders provide easy access to mid range heights. Ideal for a task at a constant height.

Extension ladders charactoristics?

Available in a wide assortment of materials, types and sizes. They can handle a range of tasks at different heights and are the most popular long ladder.

What type determines the ladder you choose for a job?

Type of project, height, specific.

Which stepladder may be used by two workers at the same time?

The double or twin step ladder.

What is the maximum load of the medium duty commercial ladder (type two)?

225 lb

What is the maximum load of Heavy-duty industrial ladders (type 1)?

250lb

What is the maximum capacity of the extra heavy duty industrial ladders (type 1A)?

300lb

What is the maximum capacity of the super heavy duty industrial ladders (type1AA)?

375lb

Charactoristics of wood ladders?

Electrically non-coductive when clean and dry

What are the charactoristics of aluminium ladders?

-Strong

-lightweight

-corrosion-resistant

Charactoristics of a fibreglass ladders

Electrically non-conductant

Strong

What type of ladder should be choose if there is even a remote possibility you will work near electricity or overhead powerlines?

Fibreglass is electricity, non conductive.

What is the correct way to position a extension ladder?

4:1 ratio and the side rails of a portable extension ladder should extend 1 meter above the platform.

Do not stand on or above the second step from the top of the step ladder except when?

The ladder is equipped with a railed platform

The front section of a stepladder used in the open position is no steeper than a ratio of?

6 to 1

What should you always ensure when using the extension ladder?

Locks are fully engaged, and the fly is front of the base before climbing.

Are you supposed to climb a closed step ladder?

No

Are you allowed to Paint a wooden stepladder?

No

When inspecting a ladder what should you look for?

Check the spreaders, extension ladder locks, flippers and saftey shoes and make sure they arn’t missing, damaged or loose

What should you look for when inspecting a fibreglass ladder?

weathering due to ultraviolet exposure

What are are some ladder accessories available?

Conduit holder, Ladder jack, Ladder leveler, Bucket hanger, extension ladder covers

What are five factors to consider when choosing correct scaffolding for a job?

Availability, Cost, workforce expertise, site parameters, expected loads, terrain

What is the most widely used scaffold system?

Frame scaffolds

Which part of the scaffold system must be matched to site conditions?

The Base

5 scaffolding systems typically include?

• Frame scaffolds

• free-standing or rolling

• tube and coupler (also called tube and clamp scaffold)

• modular system scaffold

• suspended scaffold

What do Frame scaffold consist of?

Welded assembly of tubular members called frames, joined crossbraces, connecting pins, bases and guard rails.

What do cross braces do?

Connect the two frames and provides lateral support and rigidity

What is the purpose of the retainer pin?

The retainer pin must hold two types of components of the frame scaffold system together (typically the two frames stacked on each other). Ensure the pin itself will not come loose.

Tube and coupler scaffold are utilized primarily because?

of it’s flexibility and it’s versatility in providing access and design freedom.

What do vertical tubes do in a tube and coupler scaffold set up?

They transfer the load to the ground and can be located anywhere, regardless of the length of horizontal tubes connected to them.

What do the horizontal tubes do in the tube and coupler scaffold set up?

They can be used to space the vertical tubes or support scaffold loads.

What are other names for horizontal tubes in the tube and coupler scaffold?

Runner or ledgers

What are some other names for vertical tubes in the tube and coupler scaffold system?

Posts, standards, uprights or verticals

What do diagonal tubes do in the tube and clamp system?

They hold the scaffold plumb and square.

What are some other names for the diagonal tubes in m the tube and scaffold system?

Face or Facade sway braces are placed on the face of the scaffolding and transverse or end brace are on the ends.

What is the advantage of the Modular system scaffold?

They do not require the degree of expertise that tube and clamp scaffold does and they have quick connection pieces so the erector doesn't have to worry about the location of connections.

When would you use the modular system scaffold?

Applications where there is limited access, obstructions, uneven surfaces, and non- rectangular shape areas

Name two types of suspended scaffolds?

• Work cage or bosun’s chair

• Swing stage

With suspended scaffolds the work platforms are suspended from a load line typically anchored on the roof of a building by specially designed attachment points called?

Thrust outs or parapet hooks

What is the main advantage of suspended scaffolds?

They can hang from structures over 1000 feet tall

Two things to keep in mind when using a free standing or rolling scaffold?

• the height of a free standing or rolling scaffold is not more then 3 times the smallest dimension of its base.

• Where outriggers are used to atain a 3:1 ratio they are firmly attached to ensure the stability of the scaffold.

What does clause 325 say about loads of scaffolds?

The employer must ensure that scaffold is designed and constructed to support at least 4 times or ¼ times the load that may be imposed.

What does clause 324 say about the design of scaffolding?

Must be anchored by one tie in for each 4.6 metre vertical interval and one tie in for each 6.4 metre horizontal interval

What does clause 315say about guardrails?

A horizontal tip member that is no less than 920mm not more than 1070mm above the base of a guardrail.

What does clause 321 say about toe boards?

• Required by regulation is not less than 140mm in height above the surface of the work area

• The space between the bottom of toe board and the working surface areas no more than 6mm

• A tie board must be installed where material or tools can fall more then 1.8m

What must all light duty scaffold platforms be measured in width?

500mm wide

Main beifit of using lifts?

Mechanical lifts are typically more expensive that built in place scaffolds but substantial savings are often realized due to reduce set up and tear down costs

Two types of boom lifts?

Articulating or telescoping