1) What must happen each time a shift starts work in an excavation? a) Someone must go in and sniff the air to see if it is safe b) A competent person must inspect the excavation c) A supervisor should staty in the excavation for the first hour d) A supervisor should watch from the top for the first hour 2) When digging, you hit and damage a buried cable. What should you do? a) Move the cable out of the way and carrying on digging b) Wait 10 seconds and then move the cable out of the way c) Do not touch the cable, stop work and report it d) Dig around the cable or dig somewhere else 3) 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 4) You are working in an excavation. If you see the side supports move, you should: a) keep watching and see if they move again b) Make sure that you and others get out quickly c) Do nothig as the sides move all the time d) Work in another part of the excavation 5) What is the safe way to get into a deep excavation? a) Climb down a ladder b) Use the buried services as steps c) Climb down the shoring d) Go down in an excavator bucket 6) When digging, you find a run of yellow plastic marker tape. What does it 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 Equiptment d) The excavation now needs side supports 7) Guard-rails are places 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 8) Which of these is the most accurate way to locate buried services? a) Cable plans b) Trial holes c) Survey drawings d) Architects drawings 9) 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 excavtor 10) You are in a deep trench. A lorry backs up to the trench and the engine is left running. What should you do? a) Put on ead defenders to cut out the engine noise b) Ignore the problem, the lorry will soon drive away c) See if there is a toxic gas metre in the trench d) Get out of the trench quickly 11) You are in a deep trench and start to feel dizzy. What should you do? a) Get out, let your head clear and then go back in again b) Carry on working and hope that the feeling will go away c) Make sure that you ansd any others get out quickly d) Sit down in the trench and take a rest 12) Before work starts in a confined space, how should the air be checked? a) someone should go in and sniff the air b) The air should be tested with a metre c) Someone should look around to see of there is toxic gas d) the air should be tested with a match to see if it stays alight 13) if you need to work in a confined space, one duty opf the top man is to: a) Tell you how to work safely in confined spaces b) Enter the confined space to see if there is a problem c) start the rescue plan if needed d) Supervise the work in the confined space 14) Work in a confined space usually needs three safety documents- a risk assessment, a method statement and a) A permit to work b) an up-to-date staff handbook c) A written copntract for the work d) A company health and safety policy 15) Which of these is not a hazard in a confined space? a) Toxic gas b) A lack of carbon dioxide c) A lack of oxygen d) Flammable or explosive gas 16) If there is sludge at the bottom of a confined space, you should: a) Go in and then step in the sludge to see how deep it is b) Throw something into the sludge to see how deep it is c) Put on a disposable face mask before you go in d) Have the correct Respiratory Protective Equiptment and training before you go in 17) Why is methane gas dangerous in confined spaces? Give two answers a) It can explode b) It makes you hyperactive c) You will not be able to see becuase of the dense fumes d) It makes you dehydrated e) You wil not have enough oxygen to breathe 18) you are in a confined space when the gas alarm sounds. You have no RPE, what should you do? a) Switch off the alarm b) Get out of the confined space quickly c) Carry on working but do not use electrical tools d) Carry on working but take plenty of breake in the fresh air 19) you are in a confined space. If the level of oxygen drops: a) Your hearing could be affected b) there is a high risk of fire or explosion c) You could become unconscious d) You might be dehydrated 20) you have to work in a confined space. There is no rescue team or rescue plan. What should you do? a) Assume that a rescue team or a plan is not necessary and do the job b) Get someone to stand at the opening with a rope c) Do not enter until a rescue plan and team are in place d) Carry out the job in short spells 21) You are woprking in a confined space when you notice the smell of bad eggs. This is a sign of: a) Hydrogen sulphide b) oxygen c) mathane d) Carbon dioxide 22) you need to walk throught sludge in a onfined 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 23) You are working in a confined space. If the permit to 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 on the permit d) Leave the confined space before the permit runs out 24) When digging, you notice the soil gives off a strange smell. What is thsi likely to mean? a) The soil contains a lot of clay b) The soil has been excavated before c) The ground has been used to grow crops in the past d) The ground could be contaminated

Excavations And Confined Spaces

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