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Atmc > Explosive And Propellents > Flashcards

Explosive And Propellents Flashcards

1
Q

What colour produces red smoke?

A

Strontium nitrate

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2
Q

what are the ingredients of Greek fire?

A

sulfur, pitch, Naphtha

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3
Q

what does Ballisite consist of ?

A

capmhor, nitro glycerin, nitro cellulose

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4
Q

what are the 4 types of of modern smokeless propellants?

A

single, double triple based and composite

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5
Q

What components make up gun cotton?

A

NC, Nitric Acid and cotton fibers

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6
Q

what was added to the picric acid explosives to increase there effectiveness

A

Tetryl (boer war, yellow mist,)

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7
Q

what are the pyrotechnic groups

A

Illum, smoke, signal, delay, tracer, priming, simulators and pyromechanisms

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8
Q

what are the effects of pyrotechniques?

A

heat, light, smoke, noise

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9
Q

what is added to make the colours?

A 
Red - strontium nitrate
yellow - sodium nitrate
White - barium and potassium mixture
blue - copper carbonate
Green - barium nitrate
Orange - calcium nitrate
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10
Q

what are the characteristics of primer compositions?

A 
easily ignited
generates high heat
not burn to quickly or violently
produce some solid products of combustion 
be compatible with the mixture used
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11
Q

primary explosive defintion

A

a substance or mixture of substances used to initiate a detonation or a burning reaction

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12
Q

what are the types of explosive intiators

A

detonators and igniters

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13
Q

what are the types of intiators

A

exploding bridge wire,

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14
Q

What are the types of initiators?

A 
Stab ignitors
Percussion ignitors
Hot bridge wire ignitors 
Conducting composition  ignitors
Exploding bridge wire ignitors
Pro technique ignitors
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15
Q

What are some low explosives

A

Gunpowder
Pyro
Propellant

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16
Q

What are some high explosives

A

Tetryl
Comp b
RDX
CE

17
Q

What is comp b %

A

RDX 59.5
Tnt 39.5
Wax 1%

18
Q

What do additives do to high explosives

A 
Decrease sensitivity
Increase maldobility 
Increase sensitivity
Improve stability
Increase blast effect
19
Q

What is a desensitized in high explosives

A

TNT
WAX
ALLUMINIUM

20
Q

Caps or primiers contain three primary components what are they?

A

The primery explosice
The oxidiser
The sensitiser

21
Q

What is the purpose of a dark ignitor tracer

A

To prevent dazzling

To minimise the enemies ability to pin point filter position.

22
Q

What are the design requirements for illumination

A

Withstand firing forces
Enough luminosity
Burn for correct time

23
Q

What are the ideal properties for smoke

A 
Immediate effect
Unaffected as much as possible by weather 
Persistent
Non anti personal
Non incendiary
24
Q

What are armies smoke requirments

A

Screening and signalling

25
Q

Definition of ignitor composition

A

A pyrotechnic composition used to ignite propellant explosive systems giving off hot flames, usually accompanied by sparks and hot gasses for relatively short times.

26
Q

Metals useful in incindery

A

Magnesium and alluminum

27
Q

Delay definition

A

A device which provides a time delay for a burning train of inflammable composition between events.

A pyro delay between two igniting or exploding events

28
Q

Definition propellants

A

Propellants are an explosive which by controlled burning provides gas pressure required to give motion to a projectile or missile.

29
Q

What are the types of propellants

A

Single base
Double
Triple
Composite

30
Q

Advantages of single based propellant

A

Cooler burning
Generates considerable less erosive
Ballistics less effected by change in tempreture

31
Q

Advantages of double based propellant

A

Easily ignited
Higher energy rating than single based
Higher flame temp
Higher burning rate

32
Q

What are the propellant additives

A 
Stabilizers
 plasticisers
Coolant
surface moderants
Surface lubricants 
Flash inhibitor
Decoppering agentsanti
Antiwear additives
33
Q

What are the main chemicals used as a Dr competing agent

A

Tin
lead
Bismuth (not tought)

34
Q

How are the rates of burn controlled

A

Size
shape
composition

35
Q

What are the types of burning

A

Progressive
Regressive
Neatrual

36
Q

Name the propellant shapes the do a constant burn

A

Tubular
Cogged
Star center
Slotted tubular

37
Q

What is a carbomite

A

Plastiser
Stabilizer
Coolant
Moderant

Atmc (18 decks)

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