CITB Operatives Mock Test – Excavations and Confined Spaces

The CITB Operatives mock test below covers all the questions you’ll face from the Excavations and Confined Spaces section of the CITB Health, Safety and Environment Test in 2024.

There are 20 questions in this practice test and the pass mark is set at 18 out of 20, you will get a pass or fail result after submitting your answers.

Don’t forget to like, share, or comment if you found this CITB Operatives mock test on Excavations and Confined Spaces useful. Good luck!

1. Why is a person always positioned immediately outside of a confined space while work is taking place inside it?

Question 1 of 20

2. What is the safest way of entering and exiting a deep excavation?

Question 2 of 20

3. What do yellow service pipes carry in relation to underground service pipes?

Question 3 of 20

4. You have to work in an excavation, what is the main hazard while working?

Question 4 of 20

5. What substance is probably present in the air if workers notice the smell of rotten eggs?

Question 5 of 20

6. What should you do if you’re working in a deep trench and notice a lorry with its engine running above you?

Question 6 of 20

7. Methane gas is very dangerous in confined spaces because: (choose 2 answers)

Question 7 of 20

8. What should you do if you’re working in a deep trench and you start to feel dizzy?

Question 8 of 20

9. What should you do if you have to work in a confined space and realize your permit to work will expire before you can finish the work?

Question 9 of 20

10. Which of these is most likely if you're digging and notice a strange smell coming from the soil?

Question 10 of 20

11. What is the main cause of death among workers in confined spaces?

Question 11 of 20

12. You have to work in a confined space and notice there is sludge at the bottom, what should you do before entering? (Choose 3 answers)

Question 12 of 20

13. If you need to hand dig near any electrical underground services you must use __.

Question 13 of 20

14. Guard rails placed around the top of an excavation are meant to ___.

Question 14 of 20

15. What could happen if oxygen levels in a confined space drops below 8 percent?

Question 15 of 20

16. Why should workers be fully trained and competent before they’re allowed to enter a confined space?

Question 16 of 20

17. What does it mean if you digging and find a run of coloured marker tape?

Question 17 of 20

18. What should you do if you notice the side supports moving around as you're working inside an excavation?

Question 18 of 20

19. An excavation should be battered back or stepped if ___.

Question 19 of 20

20. If you’re working in a confined space and the gas alarm goes off you should:

Question 20 of 20


 

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