Fireworks And Explosives

Question 1

Explosives what is the definition of a Yankee Hazard On the mobile data terminal

Answer 1

Red warning triangle with a black exclamation mark

Question 2

Explosives what is the definition of a detonating explosive

Answer 2

This is when the reaction exceeds the speed of sound

Question 3

Explosives what is the definition of a deflagrating explosion

Answer 3

This is when the explosion is below the speed of sound.

Factors such as pressure heat and confinement may influence the rate of reaction

Question 4

Explosives what is the definition of overpressure

Answer 4

This is when the pressure of the wave can be great enough to kill without the victim being struck by any fragment

Question 5

Explosive with radio controlled detonators or metal components can be detonated by radio transmission up to what distance

Answer 5

60 m.

Some military munitions can be detonated up to 600 m

Question 6

Explosives who is the licensing authority for bulk storage of fireworks

Answer 6

Health and safety executive

Question 7

Explosives when crews become aware of a shop selling or storing fireworks who should They liaise with and what steps should they take

Answer 7

They should liaise with the local regulatory fire safety team.
An entry will be placed on the ORD data base for all firework retailers.
A reinspection will be programmed to ensure short-term storage fireworks has been removed.

Question 8

When explosives have been confirmed involved what priority message must be sent to inform control

Answer 8

Explosives confirmed involved

Question 9

Explosives the maximum storage of fireworks for domestic use for a shop is how many and how are they stored

Answer 9

250 kg.

Stored in an ISO container

Question 10

Explosives gun enthusiasts who hold an acquire and keep certificate are license by the police to keep up to how much black powder and where should it be stored

Answer 10

20 kg.

Stored in a metal box

Question 11

Explosives railway fog signals contain approximately how much black powder

Answer 11

8 g.

When they are stored in bulk in metal boxes they should be treated as high explosive

Question 12

Explosives hazard zones what is the hazard zone for explosives up to 250 kg or a small size car

Answer 12

200 m

Question 13

Explosives what is the hazard zone for explosives from 251 kg - 2000 kg and any military explosive munitions.
HD1.2.

Answer 13

600 m

Question 14

Explosives what is the hazard zone for any explosive over 2000 kg

Answer 14

1000 m

Question 15

Explosives tests with ammunition found that the majority of burning out lasting no more than how long

Answer 15

90 minutes

Question 16

Explosives transport where should the orange plates be fitted on vehicles carrying explosives

Answer 16

The orange plate should be fitted front and rear of the vehicle.
In addition vehicles carrying explosives and now required to display hazard warning diamonds on the front rear and side of the vehicle

Question 17

Explosives if a container has been subjected to the impingement of heat once the fire is extinguished how should the crews check the container and what PPE should they be rigged in

Answer 17

Full PPE including BA.
The container should be checked with the thermal image camera.
When openings are available the container should be flooded with water.
If this is not possible correct door procedure should be used or consider making A suitable hole

Question 18

Explosives when are explosives most volatile

Answer 18

When subject to heating %%%%