Excavations and confined spaces CITB HS&E test for operatives and specialist Exam Verified A+

Excavations and confined spaces CITB HS&E test for operatives and specialist Exam Verified A+ 1. What is the safest way to get into a deep excavation? A) Climb down a secured ladder B) Use the buried services as steps C) Climb down the shoring D) Go down in an excavator bucket: A 2. 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 ear 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 meter in the trench D) Get out of the trench quickly: D 3. 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 and any others get out quickly and report it D) Sit down in the trench and take a rest: C 4. 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 meter C) Someone should look around to see if there is toxic gas D) The air should be tested with a match to see if it stays alight: B 5. If there is sludge at the bottom of a confined space, you should: A) go in and then step into 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 facemask before you go in D) have the correct respiratory protective equipment (RPE) and training before you go in: D 6. 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 because of the dense fumes D) It makes you dehydrated E) You may not have enough oxygen to breathe: A and E 7. 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 get dehydrated: C 8. You are working in a confined space when you notice the smell of bad eggs. This smell is a sign of: A) hydrogen sulphide B) oxygen C) methane D) carbon dioxide: A 9. 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: A 10. What is the main reason for having a person positioned immediately outside a confined space whilst work is taking place inside it? A) To supervise the work taking place inside the confined space B) To check compliance with the method statement C) To get the rescue plan underway in an emergency D) To carry out a risk assessment for the work: C 11. You are in a confined space when the gas alarm sounds. You have no respiratory protective equipment (RPE). What should you do? A) Switch off the alarm