TB 163, Metro Crenshaw/LAX Construction Phase

Question 1

The activation of air monitoring devices on the tunnel boring machine results in?

Answer 1

All power shut down in tunnel

Question 2

The responsibility to verify the brass board an account for all construction workers lies with?

Answer 2

Staging

Question 3

Tell division will ensure that all emergency operations are discontinued in the tunnel evacuated should the tunnel atmosphere meet or exceed?

Answer 3

20 percent LEL

Question 4

Due to the potential of an incident where access would be made at two or more access points the incident would dictate forming a?

Answer 4

Tunnel branch

Question 5

Allowing rescuers the ability to complete a rescue mission should a non-compromised atmosphere becomes compromised is achieved through?

Answer 5

Redundancy and breathing apparatus

Question 6

If the tunnel atmosphere is determined to be non-compromised, The first and Company me into the tunnel to assist with patient care?

Answer 6

As long as the comply with SCB a and self rescue device requirements

Question 7

The tunnel boring machine is powered by electric motors that operate hydraulic pumps. Combustibles around machine or limited to

Answer 7

Hydraulic oil and lines