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Tec Sift 23 > A12 - Incidents involving cylinders > Flashcards

A12 - Incidents involving cylinders Flashcards

1
Q

A12 - On arrival at all incidents involving cylinders an initial hazard zone of how many metres should be identified?

A

200m

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2
Q

A12 - True or false; A purely mechanical shock without elevated temperature to an acetylene cylinder, such as a drop from a lorry, will neither start decomposition nor ignite the gas.

A

True

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3
Q

A12 - which is lighter, acetylene or air

A

Acetylene

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4
Q

A12 - How long does cylinder need to remain cool to be handed over if not safe to do so beforehand?

A

24 hours

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5
Q

A12 - What indicators should you look for to see if cylinders have been heated?

A
  • Burnt Label
  • Burnt/Melted Plastic Rings
  • Scorch Marks On Cylinder
  • Wetting Test
  • Thermal Image Camera Registering Heat
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6
Q

A12 - What is the predetermined attendance for incidents involving Cylinders?

A
  • 2 x nearest fire appliances
  • 1 x flexi-duty officer
  • 1 x Hazardous Incident Team (HIT) officer
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7
Q

A12 - What is the colour classification for acetylene

A

Maroon/Burgundy

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8
Q

A12 - What is the colour classification for oxygen

A

white

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9
Q

A12 - What is the colour classification for Nitrous Oxide

A

Blue

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10
Q

A12 - What is the colour classification for Argon

A

Dark Green

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11
Q

A12 - What is the colour classification for Nitrogen

A

Black

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12
Q

A12 - What is the colour classification for Carbon Dioxide?

A

Grey

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13
Q

A12 - What is the colour classification for helium

A

brown

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14
Q

A12 - What is the colour classification for air or synthetic air?

A

bright green

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15
Q

A12 - What are the colour classifications by hazard type?

A

Inert is Bright Green
Oxidising is Light Blue
Flammable is Red
Toxic and/or Corrosive is Yellow

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16
Q

A12 - What are the hazards associated with Oxygen cylinders?

A

Explosion when subject to heat
Oxidising
Will intensify combustion

17
Q

A12 - What are the hazards associated with Helium and Nitrogen cylinders?

A

Explosion when subject to heat

Asphyxiant

18
Q

A12 - What are the hazards associated with Nitrous Oxide cylinders?

A 
Explosion when subject to heat
Oxidising 
Will intensify combustion 
Asphyxiant 
Contact with liquid causes skin burns and damage to eyes 
Narcotic in high concentrations
19
Q

A12 - What are the hazards associated with Compressed Air cylinders?

A

Explosion when subject to heat

20
Q

A12 - There are 4 main gas types. What are they?

A

Toxics/Corrosives
Oxidants
Inerts
Flammables

21
Q

A12 - LPG cylinders failing under heat may result in an explosion, also known as a BLEVE. What does BLEVE stand for?

A

Boiling Liquid Expanding Vapour Explosion

22
Q

A12 - How long is the cooling phase?

A

1 hour

23
Q

A12 - How long is the monitoring phase

A

1 hour with monitoring every 15 minutes.

Tec Sift 23 (15 decks)

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