Cylinders

Question 1

Name four ways gases are stored and transported?

Answer 1

Compressed (non-liquefied)
Liquefied
Refrigerated (cryogenic)
Dissolved

Question 2

What is critical pressure?

Answer 2

The pressure needed to liquefy a gas at its critical temperature

Question 3

What does BLEVE stand for?

Answer 3

Boiling liquid expanding vapour explosion

Question 4

What are the hazards associated with a cylinder failure (FOCCAT)

Answer 4

Flammable
Oxidising
Corrosive
Cryogenic
Asphyxiant
Toxic

Question 5

What temperature does, if heated past, acetylene have the potential to reheat internally?

Answer 5

Above 300 degrees

Question 6

What colour is an acetylene cylinder?

Answer 6

Maroon with yellow reflective collar

Question 7

What is the hazard overlay for an acetylene incident and what is it used for?

Answer 7

200m

To see what surrounding risks might be in the hazard zone.

Question 8

What three ways can the risk to crews be minimised?

Answer 8

Kept to a minimum in hazard zone
Work behind substantial cover
Full PPE
Wear BA within 25 m of heated cylinder

Question 9

What does CAP stand for?

Answer 9

Cylinder assessment process

Question 10

How long do you cool the cylinder for before doing the CAP?

Answer 10

1 hour

Question 11

What information must be gathered during a cylinder incident?

Answer 11

Identify type of cylinder involved
Contents
Location
Number of cylinders involved