Natural Gas And Carbon Monoxide Flashcards

Increase knowledge on policy 804

1
Q

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

A

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

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2
Q

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

A

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

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3
Q

What is a hazard zone for a suspected gas leak

A

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

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4
Q

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

A

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

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5
Q

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

A

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

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6
Q

Where a gas leak has ignited what actions should crews take

A

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

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7
Q

Do we have powers of entry at a gas leak incident

A

No but the gas authority does

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8
Q

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

A

Minimum level 2 attendance

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9
Q

What does c o m a h site stand for

A

Control of major accident Hazard

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