Natural Gas And Carbon Monoxide

Question 1

What is added to natural gas so a leak can be detected

Answer 1

Ethyl mercaptan - it is extremely harmful to the environment and should not be allowed to enter water courses or

Question 2

How long does it take for a high pressure system to shut down

Answer 2

It can take 1 hour to prevent rupture of the system from sudden shock of the valves being closed

Question 3

What is a hazard zone for a suspected gas leak

Answer 3

25 m and position cruise at an angle greater than 45 degrees to the front or rear of the building

Question 4

What is the hazard zone for a high pressure natural gas pipeline rupture

Answer 4

200 m cruise working within this zone must have full PPE and BA on to affect rescues.Under congested conditions as hazard zone of minimum of 600 m should be established

Question 5

What is the hazard zone for a leak from a mass storage site

Answer 5

1000 M&A weight advice from the hazardous materials and environmental protection officer

Question 6

Where a gas leak has ignited what actions should crews take

Answer 6

They should protect surrounding buildings and wait until the gas supply has been shut off

Question 7

Do we have powers of entry at a gas leak incident

Answer 7

No but the gas authority does

Question 8

What level of attendance will be required at a suspected large release or persons reported trapped

Answer 8

Minimum level 2 attendance

Question 9

What does c o m a h site stand for

Answer 9

Control of major accident Hazard