Module 15 Re-establishing gas supply Flashcards

1
Q

If you have not directly worked on an appliance regulation 34 states…

A

If you know or have reason to believe that the appliance may be a risk to people you should inform the responsible person or, failing that, the transporter

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2
Q

If you have worked on an appliance regulation 26 states that you should check 4 things – what are they?

A

1) Effectiveness of the flue
2) Supply of combustion air
3) Operating pressure and/or heat input
4) Its operation – functioning safely

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3
Q

Prior to a tightness test the cooker lid should be…

A

Opened

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4
Q

Prior to purging an installation do you need to do a tightness test?

A

Yes

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5
Q

From a safety perspective why would you purge an installation?

A

Remove the possibilities of explosive mixtures

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6
Q

If you have a U6 meter and the pipework is <= 28mm what is the purge volume

A

0.01m3

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7
Q

How do you calculate the purge volume for a G4 meter with pipe work greater than 28mm?

A

Meter volume x5 (0.01m3) + IV of pipework & fittings x 1.5

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8
Q

What is IV?

A

Installation volume = Pv + (Pv x 0.1) for fittings

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9
Q

If the IV <0.02m3 do you purge to:

a) air
b) flame
c) either

A

a) air

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10
Q

If the IV >0.02m3 do you purge to:

a) air
b) flame
c) either

A

b) flame

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