CITB Tunneling Specialists Mock Test - 1

How could hydrogen sulphide affect those working in a tunnel?

Nitrogen oxide (N0) gas can be present in tunnels. Which one of these plant items causes most nitrogen oxide to be generated/made?

A locomotive or vehicle is approaching you in the tunnel? When should you make your way to a hop-up or safe refuge?

Why is it important to clean grouting pipelines after use to prevent injury to workers?

Which of the following characteristics are associated with hydrogen sulphide gas?

Which of the following must be fitted as a conveyor system safety device?

A grout gun inserted into a segment grout hole may present which of the following hazards?

When working underground where should your self-rescue set be?

While walking through the tunnel you see a tear in the ventilation ducting. What should you do?

Which of the following is one way to tell that there may be hydrogen sulphide in the air?

What is a common method used for communication between the tunnelling face and the surface?

Which of the following statements is correct regarding hand-arm vibration syndrome?

Crash cages and side bars/or sliding doors should be fitted to all man-riding cars used in the tunnel. Select TWO reasons why they are needed.

What is the likely hazard from moving plant or locomotives in a tunnel?

Which of the following is a common traffic light system used underground to control plant movement?

Exposure to nitrogen oxide (N0) gas can cause breathing problems. Which of the following should be the first control measure?

Which of the following is a potential accident which could occur during pumped grouting operations?

For tunnelling operations what is the minimum number of escape routes or methods that must be maintained from a working shaft?

What hazards need to be controlled during sprayed concrete operations?

Which of the following is NOT a health risk associated with sprayed concrete linings?