Natural Gas And CO

Question 1

The legal responsibility for dealing with natural gas leaks including carbon monoxide and natural gas safety rests with who

Answer 1

The gas authority

Question 2

Natural gas high pressure gas pipelines called the National transmission system operate at what bar pressure

Answer 2

85 bar

Question 3

Natural gas local distribution zones called the medium pressure system operate at what bar pressure

Answer 3

25 bar

Question 4

Natural gas

gas distribution site at what bar pressure is gas distributed to domestic customers

Answer 4

1 bar

Question 5

Natural gas the high pressure system can take up to how long to be turned off due to the gas having to be staged down

Answer 5

One hour

Question 6

Natural gas what is the PDA for a natural gas leak

Answer 6

An initial one pump attendant is dispatched to investigate

Question 7

Natural gas what is the minimum distance appliances should be positioned from a suspected leak

Answer 7

25 m

Question 8

Natural gas what is the minimum hazard zone to be implemented for a gas leak at an NTS and LDZ site

Answer 8

200 m.

Crews working within this zone to affect rescue must have full PPE and BA

Question 9

Natural gas under congested conditions a minimum hazard zone or what size should be established at an NTS and LDZ site

Answer 9

600 m

Question 10

Natural gas when there is an uncontrolled leak from a mass storage site what is the minimum hazard zone

Answer 10

1000 m

Question 11

Natural gas where a leak in the natural gas supply is suspected a cordon to ensure public safety should be a minimum of how many metres

Answer 11

25 m

Question 12

If a crew is to be committed to shut off the gas supply what is the minimum PPE required

Answer 12

Full PPE and BA.
The responsibility for the safety of the gas supply rests with the gas authority this should only be undertaken when there is a risk to life in surrounding buildings or critical infrastructure

Question 13

Natural gas does the fire service have power of entry at a gas leak incident for the purpose of securing the gas supply

Answer 13

No.
However the gas authority does crews should not make an entry on behalf of the gas authority unless there is an exceptional public safety issue

Question 14

Natural gas who has overall authority for the safety of anyone working at a natural gas incident

Answer 14

The LFB incident commander is responsible for the safety of anyone working at the incident

Question 15

Natural gas when sending a message to control what must be included within the message

Answer 15

Whether the incident is inside or outside the premises.
The size of the fire.
Whether any injuries have been sustained by members of the public.

Question 16

Carbon monoxide at a level one attendance what is the minimum level of PPE a crew must be Rigged in to ventilate the premises

Answer 16

Full PPE and breathing apparatus is required.

This is to prevent small doses of CO accumulating over time

Question 17

Carbon monoxide at a suspected large release or persons are reported trapped what level attendance will be required

Answer 17

Hazmat level 2 required

Question 18

Natural gas a request to remain on site to provide cover for the gas authority workforce should be authorised by who

Answer 18

The duty DAC.

This may be a chargeable service

Question 19

Natural gas faulty equipment the gas authority official will want to try to establish the gas apparatus fault the incident commander should make every effort to preserve the scene when an investigation is likely who should the incident commander contact

Answer 19

A request for the fire investigation team should be made

Question 20

Natural gas.

The on arrival tactics for a natural gas leak or a carbon monoxide leak can be described in three words what are they

Answer 20

Isolate.
Evacuate.
Ventilate.

Question 21

Natural gas when a gas leak has ignited what is the priority of the incident commander

Answer 21

The flame should not be extinguished but surrounding risks should be protected by lasting jets in place and evacuating the area until the gas supply has been isolated