Primary Explosives

Question 1

What is the definition of primary explosive?

Answer 1

Substance or mixture of substances used to initiate a detonation or a burning reaction.

Question 2

Explain the explosives train.

Answer 2

Detonator, booster, Maincharge

Question 3

Explain F/I primary and secondary explosives.

Answer 3

Primary has a lower F/I Making it more sensitive

Secondary has a higher F/I

Lower the F/I, more sensitive
Higher F/I, less sensitive.

Question 4

Required characteristics of primary explosives.

Answer 4

1. Stability over long periods of time
2. Optimum sensitivity to applied stimulus
3. Optimum output
4. Compatibility with materials
5. Safety in loading and handling.

Question 5

Two types of explosive initiators are?

Answer 5

Detonators (disruptive)
Ignitors (igniferous)

Question 6

ASA Composition

Answer 6

Lead Azide 68%
Lead Styphnate 29%
Aluminium powder 3%

Question 7

List 6 Primary Explosive compounds

Answer 7

1.Lead Azide
2.Lead Styphnate
3.Lead Dinitro Rescorinate
4.TR1
5.VON HERZ MIXTURES
6.ASACOMPOUND

Question 8

Composition of TR1

Answer 8

RDX - 98.75%
WAX - 1.25%

Question 9

Composition of Comp B

Answer 9

RDX - 59.5%

TNT - 39.5%

WAX - 1%

Question 10

Composition of OCTOL

Answer 10

HMX - 70%

TNT - 30%

Question 11

Composition of PE 4

Answer 11

RDX - 88%

Plasticiser - 12%