Fireworks And Explosives

Question 1

What is a “Yankee hazard”?

Answer 1

An explosive hazard

Question 2

What are the two types of explosive material? And which one is quicker?

Answer 2

Detonating and deflagrating

Detonating is quicker than the speed of sound

Question 3

Why is it worse when in line of sight of an explosive and have a solid surface behind you?

Answer 3

Subjected to double the over pressure due to reflected pressure waves

Question 4

Even some small domestic fireworks are design to propel up to what distance?

Answer 4

50 - 100 meters with an exploding fire ball of 100m

Question 5

What is done with shops who stock fireworks for short periods?

Answer 5

• an entry will placed on the ORD data base for all firework retailers
• a re-inspection will be programmed in to ensure short term storage of fireworks has been removed.

Question 6

Sporting ammunition used by member of the public holding gun license, does this need to be recorded?

Answer 6

Need not be recorded. These are usually less of hazard to firefighting operation than exploding aerosol cans!

Question 7

Is storage of black powder by gun holders with ‘acquirer and keep certificate’ classed as a Yankee hazard?

Answer 7

Yes and information is held by the metropolitan police service and is entered directly into the ORD

Question 8

How does a Yankee hazard appear on the MDT?

Answer 8

Red triangle with a black exclamation mark

Question 9

What is the maximum storage of domestic fireworks in a shop?

Answer 9

250kg

Question 10

Gun enthusiasts who hold “acquire and keep certificates” are licensed to keep how much black powder and where must it be stored?

Answer 10

20kg and in a black box

Question 11

What are the hazard zones for the following

250kg or the size of a small car?

251 - 2000kg and any military explosives?

2000kg and above?

Answer 11

250kg or small car - 200m

251 - 2000kg or military - 600m

2000kg and above - 1000m

Question 12

Radios should not be used with in what distance of explosive material?

Answer 12

60m which can be relaxed if the specialist says that it is not sensitive to radio transmissions

Question 13

Use of a radio will not permitted with in what distance if a military grade or malicious explosive?

Answer 13

600m can be relaxed on specialists say so.

Question 14

What does an orange Placard indicate on a lorry and what also should be on the lorry?

Answer 14

Dangerous goods and warning diamonds on front, rear and sides.

Question 15

When might you use TOPS?

Answer 15

Total operations processing system for finding out explosive transport by network rail.

Question 16

Railway fog signals - how much black powder do they carry and what is the danger to us?

Answer 16

8kg and danger would be the loud noise

Question 17

ISO containers must be checked how?

Answer 17

That they are ambient temperature with a TIC and flooded with water by a suitable opening before doors are opened. When opening door ms firefighters must wear full PPE and have a covering jet avail