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Atmc > Test Four > Flashcards

Test Four Flashcards

1
Q

What are the different types of corrosion

A
  1. Rust
  2. Aluminum oxidisation
  3. Muzak contamination
  4. Zinc exudation
  5. Cupourus oxide contamination
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2
Q

What are the different types of metal defects

A
  1. Chemical

2. Mechanical

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3
Q

What are the 4 different types of filling used in projos

A
  1. Casting
  2. Pressing
  3. Extruding
  4. Preforming/concooning
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4
Q

What are the 3 methods of casting explosinves

A
  1. Pouring
  2. Creaming
  3. Liquid and biscuits
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5
Q

Driving bands are one use of copper in ammo where the rest

A
  1. SAA jackets
  2. Shape charge liners
  3. Dets
  4. Cart cases (brass)
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6
Q

What is brass?

A

70% copper

30% zinc

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7
Q

What are 3 different types of QF cart cases/systems

A

Separate
Semi fixed
Fixed

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8
Q

What is AO and BO

A 
AO = ammunition obutration cart case seals
BO = breach seals obutration
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9
Q

What are the different ways too ignite tracers

A

Direct ignition

Propellant ignition

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10
Q

How are cart cases stuck to projos

A

Conning
Cannularing
Combo of Cannularing and conning

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11
Q

Why are driving bands used

A

Center projectile in the bore
Obturation
Stops slip back when rammed in barrel at high angle

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12
Q

How are driving bands stuck on projos

A

Knurling

Wavey ribs

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13
Q

What are 2 types of primers

A

Percussion

Electric

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14
Q

What are 2 types of recolis rifle rounds

A

Blow out disc

Perforated cart case (106 recolis rifle, chinease recoiless)

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15
Q

How are promo shells made

A

Casting
Forging
Extruding

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16
Q

What is in a conducting cap electric and how’s it work

A
  1. Base
  2. Pole
  3. Cap
  4. Magazine

Electric current passed up pole to cap and passed through mixture causing heating and ignition

17
Q

What are the classifications of tracers

A 
Tracer projectile 
Tracer and igniter projectile (self distruct)
Integral tracer (small arms)
18
Q

The 1960s explorer system had 3 main benifets what are they

A

Ease of removal
Setback forces eliminated
No migration of explosive.

19
Q

Requirments of a cart case

A

Holds the primer
Provides obturation
Protection of contents
Ease of extraction

20
Q

What is a non permanent seal

A

Luting

21
Q

Name the types of natural fibres which may be used with ammunition explosives

A

Cellulose
Silk
Wool
Rubber

22
Q

What are the types of bagged charges

A

Equal cylinder
Steam and ring
Unequal cylinder
Steam and segmented

23
Q

What are the types of QF cart systems?

A

Fixed cart and promo joined
Semi fixed parts mated before ramming
Seperate mated in gun

24
Q

What are the types of metal defects

A

Chemical

Mechanical

25
Q

Why do we use brass in cart cases

A

Does not corrode and give abrasive particals
Performs well in most equipment
Know it’s mettelurgy and techniques are well know

26
Q

What advantage does a combustible cart case offer

A

All helps ballistics

27
Q

Attaching cart case too projo

A

Cone
Cannaluring
Cone - cannaluring

28
Q

How are tracers ignited

A

Direct

Propellants

29
Q

Methods of sealing tracer

A

Brass or celluloid discs
Nitroglycerin and carbamite
Bakelite discs

30
Q

How are tracers fitted to projectiles

A

Externally to the base
Internally to the spigot
Grub screwed passing through tracer body

31
Q

Design requirements of driving band

A

…

32
Q

What are the classifications of weapon shells

A

Operational
Weapon functioning/inspection
Training

33
Q

What are the four parts in a conducting caps

A

Base, pole unit, cap, magazine

34
Q

What are the design requirements for driving bands

A

Must not alter ballistics
No excessive friction in the bore
Must remain attached
Simple to fit

Atmc (18 decks)

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