Excavations And Confined Spaces

10 Questions

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Space Quizzes & Trivia

This quiz is a sample of questions from the excavations and confined spaces section of the health and safety test.


Questions and Answers
  • 1. 
    An excavation must be supported if:
    • A. 

      It is more than 5 metres deep

    • B. 

      It is more than 1.2 metres deep

    • C. 

      There is a risk of the sides falling in

    • D. 

      Any buried services cross the excavation

  • 2. 
    When digging, you find a run of yellow plastic marker tape.  What does this mean?
    • A. 

      There are buried human remains and you must tell your supervisor

    • B. 

      There is a buried service and further excavation must be carried out with care

    • C. 

      The soil is contaminated and you must wear Respiratory Protective Equipment

    • D. 

      The excavation now needs side supports

  • 3. 
    Guard-rails are placed around the top of an excavation to prevent:
    • A. 

      Toxic gases from collecting in the bottom of the trench

    • B. 

      Anyone falling into the trench and being injured

    • C. 

      The sides of the trench from collapsing

    • D. 

      Rain water running off the ground at the top and into the trench

  • 4. 
    If you need to dig near underground services, you should use:
    • A. 

      A jack hammer

    • B. 

      A spade or shovel

    • C. 

      A pick and fork

    • D. 

      An excavator

  • 5. 
    If you need to work in a confined space, one duty of the top man is to:
    • A. 

      Tell you how to work safely in confined spaces

    • B. 

      Enter the confined space if there is a problem

    • C. 

      Start the rescue plan if needed

    • D. 

      Supervise the work in the confined space

  • 6. 
    • A. 

      Toxic gas

    • B. 

      A lack of carbon dioxide

    • C. 

      A lack of oxygen

    • D. 

      Flammable or explosive gas

  • 7. 
    • A. 

      It can explode

    • B. 

      It makes you hyperactive

    • C. 

      You will not be able to see because of the dense fumes

    • D. 

      It makes you dehydrated

    • E. 

      You will not have enough oxygen to breathe

  • 8. 
    You are working in a confined space when your notice the smell of bad eggs.  This smell is a sign of:
    • A. 

      Hydrogen sulphide

    • B. 

      Oxygen

    • C. 

      Methane

    • D. 

      Carbon dioxide

  • 9. 
    You are working in a confined space.  If the Permit of Work runs out before you finish the job, you should:
    • A. 

      Carry on working until the job is finished

    • B. 

      Hand the permit over to the next shift

    • C. 

      Ask your supervisor to change the date of the permit

    • D. 

      Leave the confined space before the permit runs out

  • 10. 
    You need to walk through sludge at the bottom of a confined space.  Which of these is not a hazard?
    • A. 

      The release of oxygen

    • B. 

      The release of toxic gases

    • C. 

      Slips and trips

    • D. 

      The release of flammable gases