Welcome to the 'Specialists - Tunnelling'
This practice test will select 10 random questions, which you will be expected to complete within the allocated 10 minute time limit. You will be shown correct and incorrect answers at the end of the quiz.
Each question is representative of the type used in the Specialists Test.
Instructions:
- The test will begin after you select the 'Start Quiz' button below.
- For each question, choose from the multiple choice answers provided.
- Some questions may have more than one answer, a note will be displayed when to do this.
- After the last question, click 'Submit' to be shown your results.
Ready? Click 'Start Quiz' to begin.
If a grouting pipe becomes blocked, what should be done first?
Within what distance of a diesel refuelling point is hot work prohibited?
Nitrogen oxide (NOx) may be present in tunnel environments. Which type of plant typically produces the greatest amount of NOx?
What effect can hydrogen sulphide have on people working in a tunnel?
In an emergency, who is most likely to rely on the information shown on a tally board?
What is the most effective way to deal with the tunnel-boring machine operator having limited visibility?
Which feature is commonly associated with hydrogen sulphide gas?
How would you be alerted if the tunnel ventilation system failed?
Which method provides a dependable way of detecting carbon monoxide and methane?
Methane has no smell. In which two ways can it present a danger?
