ECS Health Safety and Environmental Assessment 07
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Questions and Answers

Most deaths on site are caused by:

  • Vehicle movements
  • Solvent inhalation
  • Chemical burns
  • Falling from height (correct)

    • The type of accident that kills most construction site workers is:

  • Being hit by falling objects
  • Falling from heights (correct)
  • Electrical accident
  • Trench collapses

    • The main cause of deaths on construction sites is

  • Fire
  • Being run over by plant
  • Falls from height (correct)
  • Excavation collapse

    • How many people should be working on a ladder at one time?

    <p>One</p> Signup and view all the answers

    Ladders should be set at a slope of approximately:

    <p>1 out for every 4 up</p> Signup and view all the answers

    Why should aluminium ladders be kept away from wet lime or cement?

    <p>It may corrode the ladder</p> Signup and view all the answers

    Before being used, a ladder should be inspected:

    <p>By the user</p> Signup and view all the answers

    Ladders should be:

    <p>Tied or footed AND at the right angle AND in good condition</p> Signup and view all the answers

    A ladder giving access to a scaffold can generally be safely used, provided that:

    <p>It is tied and extends at least 1 metre above the platform</p> Signup and view all the answers

    What is the ideal angle for a ladder against a wall and floor?

    <p>Four metres up for every metre out from the wall</p> Signup and view all the answers

    The rung of a wooden ladder has started to split, what should you do?

    <p>Do not use it, tell your supervisor</p> Signup and view all the answers

    Ladders should not be painted because:

    <p>The paint may cover a defect or damaged part of the ladder</p> Signup and view all the answers

    When can you work from a ladder?

    <p>For short periods and then only if it is safe to do so</p> Signup and view all the answers

    When working above public areas, what should be considered?

    <p>The danger of falling materials</p> Signup and view all the answers

    A scaffold tower must be erected by:

    <p>A trained and competent person</p> Signup and view all the answers

    What is the minimum height of the top guard-rail of a scaffold above the edge from which someone is liable to fall?

    <p>950mm</p> Signup and view all the answers

    A working platform used for construction work, and from which a person could fall 2 metres or more, must not be used unless it has been inspected (and a report is subsequently prepared) by a competent person:

    <p>Within the previous seven days</p> Signup and view all the answers

    On a mobile elevating work platform, what should you attach your safety harness to?

    <p>A secure anchorage point inside the platform</p> Signup and view all the answers

    You have been asked to operate a cherry-picker (mobile elevated work platform) when it is very windy. What should your FIRST consideration be?

    <p>Does the wind-speed make it unsafe to use the machine</p> Signup and view all the answers

    If you have to work at height and it is not possible to erect a scaffold, or use any other type of working platform or mobile elevating work platform, then you should:

    <p>Wear a harness and lanyard at all times</p> Signup and view all the answers

    When working on a roof that has fragile, clear-plastic panels, what is the best way of preventing falls through the panels?

    <p>Cover the fragile panels with a strong material and secure the covers to stop them being dislodged</p> Signup and view all the answers

    When working on a roof that has fragile, clear-plastic panels, what is the best way of preventing falls through the panels?

    <p>Crawling boards should always be used</p> Signup and view all the answers

    Half the deaths on construction sites are caused by which one of the following?

    <p>Falls from heights</p> Signup and view all the answers

    What should you do if your work activity requires you to wear a full body safety harness and one is not available?

    <p>Stop work immediately and tell your supervisor that you do not have the correct PPE</p> Signup and view all the answers

    Under what circumstances do the Work at Height Regulations permit a stepladder to be used on site?

    <p>Only when a risk assessment shows that safer alternatives have been ruled out and the task is of low risk and of short duration</p> Signup and view all the answers

    Of the following, which is the POOREST method of securing a ladder?

    <p>Having someone foot the ladder</p> Signup and view all the answers

    Prior to moving a mobile tower scaffold, the platform height should reduced to a maximum of:

    <p>4 metres</p> Signup and view all the answers

    What is the best method of securing a ladder?

    <p>Tying it to a suitable point</p> Signup and view all the answers

    Study Notes

    Safety on Construction Sites

    • Most common cause of death: Falling from heights is the leading cause of fatalities on construction sites, despite other hazards like vehicle movement, chemical exposure and falling objects also posing risks.

    • Type of accident killing most workers: Falling from heights is the biggest killer on construction sites.

    • Main cause of construction site fatalities: Falls from heights are the leading cause of death on construction sites.

    Ladder Safety

    • Maximum workers on a ladder: Only one person should use a ladder at a time.

    • Ladder angle: Ladders should be set at a 1:4 slope (1 out for every 4 up).

    • Ladder inspection: Before use, a ladder must be inspected by the user to ensure it's in safe condition.

    Scaffold Safety

    • Safe erection: A trained and competent person must erect a scaffold tower.

    • Minimum height above edge: The top guard rail of a scaffold must be at least 950mm above the edge where people could fall.

    • Scaffold Inspection: A scaffold used at heights of 2m or more should be inspected by a competent person within seven days of last use.

    Working Above Public Areas

    • Falling material: When working above public areas, consider the risk of falling materials.

    Working with Ladders

    • Ladder placement: The ladder should extend at least 1 meter above the landing point.
    • Ideal angle for ladder: The ideal angle for a ladder is 75 degrees.
    • Ladder stability: Ladders should be tied, wedged (where necessary), or have a stability device to prevent them from moving during use.
    • Ladder use: Use only when necessary; the task must have low risk and a short duration.
    • Dangerous materials or conditions: If working with materials that may corrode aluminium ladders, or if the site is wet or windy, ensure the ladder is protected.

    Working at Height

    • Fall prevention: Use appropriate fall protection equipment (e.g., harnesses, lanyards).
    • Competent person review: Platforms that could cause a fall of 2 meters or more need to be inspected by a qualified person before use.

    Specific Equipment Safety

    • Mobile elevating work platform (cherry picker): When using a cherry picker, consider the weather and site conditions if working in windy weather.
    • Fragile panels: When working on roofs with fragile panels, use crawling boards to ensure the safety of those working on the site.
    • PPE (Personal Protective Equipment): If the correct PPE is not available, stop work immediately.

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    Section 07

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