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116 Cards in this Set

  • Front
  • Back

An elevated temporary platform?

Scaffold

3 Basic types of scaffolds?

Supported scaffolds


●Suspended scaffolds


●Aerial lifts

Platforms supported by rigid, load bearing members, such as poles, legs, frames, and outriggers?

Supported scaffold

Platforms suspended by rope or other non-rigid, overhead support?

Suspended scaffolds

Such as "cherry pickers" or "boom trucks" ?

Aerial lifts

Employees working on scaffolds are exposed to what hazards?

Falls from elevation


●Struck by


●Electrocution


●Scaffold collapse


●Bad planking

The contractor/owner is responsible for scaffold even if it is defective or mislabeled T/F ?

True

Fall hazards may occur when:

Climbing on/off scaffold


●Working on unguarded platforms


●Scaffold platform or planks fail

PLANKING must be able to support its own weight and atleast ______ times the intended load?

4x (this includes workers, tools, materials)

If a worker can fall more than _____ft they should be protected by guardrails and/or PFAS

10 feet

Scaffolds and components must be inspected by a competent person before ______ ______ and after any _______ ?

before each shift; alterations

When scaffold is fully loaded, the plank cannot deflect more than _____ of the span?

1/60

10 ft plank spans can have a maximum deflect of ______ inches on a scaffold?

2"

Workers can never work on scaffolds during storm or high winds T/F ?

False, they can't unless a competent person can determine it is safe and employees are protected by PFAS and wind screens

PLATFORMS shall be _____ inches from the work, unless using guardrails and/or PFAS?

14 inches

TOP RAILS should be ____ to ____ inches tall?

38 to 45 inches tall (most common is 42")

MIDRAILS shall be ______ between top rail and platform?

halfway

TOE BOARDS shall be atleast _____ inches high?

3-1/2 inches

Wooden planks need to be inspected & graded by an inspector who is certified by a lumber grading inspecting agency T/F ?

True

You do NOT have to be trained how to properly use PFAS?

False

PFAS includes:

Anchorage


●Lifeline


●Body harness

Safety NETS shall be installed no more than _____ feet below the falling level?

30 feet

How to protect from falling objects?

Wear hard hats


●Barricade area below scaffold


●Use panels or screens for materials


stacked above toe board


●Build canopy or erect a net below


the scaffold

PFAS can be used instead of guardrails on some scaffolds T/F ?

True

It is required to use both PFAS and guardrails on suspension scaffolds


T/F ?

True

It is required to use PFAS on erectors and dismantlers where feasible T/F?

True

Clearance between scaffolds and INSULATED powerlines shall be as follows:

< 300 volts 3ft


> 300 volts to 50kV 10ft


> 50kV 10 ft + .4" for each 1 volt or


50kV

Clearance between scaffolds and UNINSULATED powerlines shall be as follows:

< 50kV 10ft


> 50kV 10ft + .4" for every 1volt or


50kV

PLATFORMS shall be fully planked with no more than ____inch gaps?

1 inch

PLATFORMS shall be atleast _____ inches wide?

18 inches

Max width on a SUSPENDED scaffold is ______inches?

36 inches

Each abutted end of plank must rest on a separate support surface T/F ?

True

Overlap platforms must be at least ____ inches over supports, unless restrained to prevent movement?

12 inches

Scaffoling planks are not to be painted except on the ends of planks to indicated the wood grade T/F ?

True

Refers to the types of species of wooden boards to be used.

Scaffolding grade wood

3 MOST COMMON wooden species used for scaffolding that meet OSHA requirments are:

Sitka Spruce


●Douglas Fir


●Southern Yellow Pine


Advantages of manufactured wooden planks?

Longevity


●Stiffness & strength


Resists splitting


●Certification (tested before leaving facility)


●Cost

Scaffoling components used must match and be the same type T/F?

True

Scaffoling components used if similar metal shall not be used together; unless, a comletent person has determined that _______ action (chemical reaction) will not reduce the strength of any components?

galvanic action

The HEIGHT of the scaffold should not be more than ______ times it's minimum base dimension unless guys, ties, or braces are used?

4x

Each end of a platform, unless cleated or otherwise restrained by hooks, must extend over its support by at least _____ inches?

6 inches

Scaffoling supports have to be able to support the load without _______ or displacement?

settling

Scaffoling poles, legs, posts, frames and uprights must be on _____ _____ and _____ _____ or other firm foundation?

base plates & mud sills

Access to scaffolds must be provided when platforms are more than ____ft


above or below a point of access?

2 feet

Permitted types of access to scaffolds:

Ladders


●Stair towers


●Ramps and walkways

A structual block used at the end of the platform to prevent the platform from flipping?

Cleat

When using ladders for access to a scaffold, the bottom rung can be no more than _____ inches high?

24 inches

Crossbraces can be used for access to a scaffold T/F ?

False, no access by crossbraces

Some end frames can be used for access onto a scaffold T/F ?

True

You can access from one scaffold or hoist to another T/F ?

True

All suspension scaffold support devices (outriggers, clamps, hooks), shall rest on surfaces capable of supporting at least ______ times the load

4x

Any gasoline powered equipment and hoist cannot be used on suspension scaffoling T/F ?

True

Ropes that suspend scaffolds must be capable of supporting _____ times the load

6x

PFAS must have anchors independent of the scaffold support system T/F ?

True

A competent person must be on site to supervise moving scaffolds T/F ?

True

What is the height to base ratio on a moving scaffold?

2 to 1

Workers can't be on a MOVING SCAFFOLD unless:

Surface is level


●Height to base ratio is 2 to 1


●Outriggers are installed on both


sides of scaffolds

Why should you NOT use shore or lean-to Scaffolds?

Because they are:


●Not fixed


●Not securred

A supported scaffold which is placed against a building or structure and held in place with props?

Shore scaffold

A supported scaffold which is kept erect by tilting it toward and resting it against a building or structure?

Lean-to scaffold

Gears and breaks on a moving scaffold must be enclosed because it is considered rotating equipment that must be guarded T/F ?

True

Tag lines must be used on swinging loads T/F ?

True

When overhead bricklaying from a supported scaffold a guardrail or PFAS is NOT required on all sides including the side where the work is being done T/F ?

False, guardrails or PFAS is required on all sides except the side where the work is being done

A person capable of identifying and promptly correcting hazards

Competent person

In regards to scaffoling A Competent Persons Responsibilities are:

Identifies and corrects hazards


●Determine if it's safe to work on


scaffolds during bad weather


●Trains workers to recognize hazards


●Selects qualified workers

Fabricated scaffoling frames must be designed by a registered engineer (also known as PE) after they are over 100 ft T/F ?

False, after they are over 125 ft

Scaffold Training must include:

Electrical, fall, & falling object


hazards


●How to deal w/ electrical hazards


and fall protection systems


●Proper use of the scaffolds


●Load capacities


Retrain under 3 different conditions:

1) any changes at the work site that prevent a hazard which an employee has not previously been trained



2) changes in types of scaffoling fall protection, falling object protection, or other equipment that presents a hazard if employee has not previously then trained



3) when inadequacies in an effective employees work involving scaffold indicates that the employee has not obtained the required sufficiency (when an employee continues to work unsafe on a scaffold)

Main Hazards of Scaffolds:

Falls from elevation


●Bad planking


●Scaffold collapse


●Getting struck by falling objects


●Electrocution

Operated by a liquid moving in a confined space under pressure?

Hydraulic

Containing or operated by air or gas under pressure.

Pneumatic

Bursting Safety Factor shall apply to all critical _______ and _______ components?

hydraulic and pneumatic

Who determines the load capacity for aerial lifts?

Manufacturer

Only trained and authorized persons are allowed to operate an aerial lift T/F ?

True

When should a pre-start inspection be conducted on aerial lifts?

Prior to each work shift

Any vehicle mounted device used to elevate personnel?

Aerial lift

Means an obstruction to deter the passage of persons or vehicles ?

Barricade

These are the warnings of a hazard, temporarily or permanently affixed or placed at locations where hazards exist ?

Signs

Moving signs, provided by workers such as flaggers, or by devices such as flashing lights to warn of possible or existing hazards ?

Signals

Temporary signs, usually attached to a peice of equipment or part of a structure to warn of existing or immediate hazards?

Tags

Signs used only where there is an immediate hazard. It's predominant color is ______?

Danger Signs; red

Signs that warns against potential hazards and unsafe conditions. The predominant color is ______?

Caution Signs; yellow

The letters on an EXIT sign cannot be less than _____ inches high and at least _____ of an inch wide?

6 inches high ; 3/4 of an inch wide

Signs that are white with a green upper panel with white letters to convey the principle message ?

Safety signs

Signs that are white with a black panel and a white symbol?

Directional signs

Tags can be used in the place of, or substitution of a sign T/F ?

False, tags cannot be substituted, or take the place of a sign

Barricades is incorporated by reference to the MUTCD in what part?

Part 6 of the MUTCD

What is the difference between a sign and a tag?

Tags are temporary and signs are permanent

Name 3 different types of signs/tags used in construction?

Caution Sign


Danger Sign


Traffic Sign

What is the predominate color on a caution sign?

Yellow

Warning garments worn at night shall be of _______ material ?

retroflective

MUTCD ?

Manual on Uniform Traffic Control Devices

Are those that operate within an off highway job site, not open to public traffic

Motor vehicle

Marine Operations and Equipment conform to the applicable requirments of what other safety and health requlations?

Long shoring operations

ROPS ?

Roll Over Protective Equipment

All ______ in use shall be checked at the beginning of each shift to assure that the following parts, equipment, and accessories are in safe operating condition?

Vehicles

The area along the waterfront edge of the pier?

Apron

The side of the ship above the upper deck?

Bulwark

The raised frame, as around a hatch way in the deck, to keep water out?

Coaming

A marine ladder of rope or chain with wooden or metal rungs?

Jacobs ladder

Means a light structure serving as a guard at the outer edge of a ships deck?

Rail

Means the loading, unloading, moving, or equipment & supplies, etc. into, in, on, or out of any vessel from a fixed structure or shore-to-shore vessel, vessel-to-shore or fixed structure or vessel-to-vessel

Long shoring operations

Subpart O

Motor Vehicles, Mechanized Equipment, & Marine Operations

What is Subpart L

Scaffolds

A white tag with white letters on red square ?

DO NOT OPERATE tag

A white tag with white letters on red square ?

DO NOT OPERATE tag

A white tag with white letters on red oval with a black square?

DANGER tag

Yellow tag with yellow letters on a black background?

CAUTION tag

White tag with white letters on a black background?

OUT OF ORDER DO NOT USE tag

What is the life expectancy on a Barricade?

1 year

Barricades and channeling devices warn and alerts drivers of changes and hazards to the following:

● Roadway Ends


● Ramp or lane is closed


● Permanent or semi permanent closure or termination of a roadway

Construction areas shall be posted with legible ______ signs at points of hazard?

Traffic signs

Hand signaling by flag men shall be by use of red flags at least _____ inches square or sign paddles, and in periods of darkness, ____ ____?

18 inches; red lights

Flag men shall be provided with and shall wear a ______ or ______ warning garment while flagging.

red or orange

Flagger garments shall be visible at a minimum distance of _______ feet?

1,000 ft

What is the best way to control vehicle speed?

Governing engine machines