1561855
Description
Quiz by Vito Martino, updated more than 1 year ago
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Created by Vito Martino
about 10 years ago
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Question 1
Question
Why may a confined space be dangerous to work in?
Answer
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All of the hazards mentioned
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Temperature and poor ventilation may affect the worker
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Air in the space may be unbreathable due to poisonous gas
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There may not be sufficient working space
Question 2
Question
What must be considered first when planning to carry out work in a confined space?
Answer
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Can the work be done from the outside
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Has sufficient manpower been allocated
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Have the correct tools been arranged
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Has the job been priced properly
Question 3
Question
When working in a confined space, such as a sewer, what danger may occur?
Answer
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Not enough time for the job to be done
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Build up of harmful gases
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Boredom
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Getting wet through
Question 4
Question
To determine the safety of the atmosphere in an excavation, which of the following is essential
Answer
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Only entering for a short period to enable a quick escape
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Looking for toxic gases
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Using a gas detector
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Sniffing the atmosphere after entry
Question 5
Question
Before entering an excavation to start work, it must first be:
Answer
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filled with water then drained
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inspected by the HSE
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covered over and left overnight
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inspected by a competent person
Question 6
Question
You have to enter a manhole in which you know there are toxic gases. You have all the PPE but there does not appear to be a rescue plan in place. What should you do?
Answer
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Ask your mate to stand-by at the top of the manhole with a length of rope
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Do not enter the manhole until a rescue plan and rescue equipment are in place
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Plan to carry out the job in short bursts
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Just get on and do the job, it will probably be alright
Question 7
Question
While digging a trench, you uncover a length of yellow marker tape at a depth of about 150mm. What does the presence of the marker tape mean?
Answer
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The area has a high water-table and precautions must be taken to prevent an in-rush of water
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There is a buried electrical cable and further excavation must be carried out with care
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There is contaminated soil below the level of the marker tape and all excavation must stop
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The excavation has reached a depth where the sides must now be supported
Question 8
Question
When working alone:
Answer
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Make sure someone responsible knows where you are
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You can do away with protective equipment
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Don’t bother anyone if you have a problem, always sort it out yourself
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Wear headphones, it will make the day go more quickly
Question 9
Question
If you are planning to work I a confined space, what is the first question that should be asked
Answer
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Can the work be performed from the outside?
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Does the site require temporary lights
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How many workers are required for the job
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What does the confined space contain
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