Base Ops

Question 1

8 steps in the cycles of operation

Answer 1

1. feeding
2. chambering
3. locking
4. firing
5. unlocking
6. extracting
7. ejecting
8. cocking

Question 2

Feeding mechanisms

Answer 2

1. Magazines
2. Belts
3. Clips

Question 3

Types of magazines

Answer 3

1. Box(staggered, in line)
2. Drum
3. Pan

Question 4

Types of belts

Answer 4

Split link
Fully encased link
Non disintegrating link belt
Disintegrating link belt

Question 5

Types of clips

Answer 5

En bloc

Stripper clip

Question 6

5 types of cartridges

Answer 6

1. Rimmed
2. Semi rimmed
3. Rimless
4. Belted
5. Rebated

Question 7

5 varieties of firing pins

Answer 7

1. Free floating
2. Inertia
3. Percussion
4. Striker
5. Fixed

Question 8

The three ways fire pins receive their energy

Answer 8

1. Large mass strikes them
Free floating
2. A spring provides their energy 
Inertia
Percussion 
Striker
3. They own mass provides energy 
Fixed

Question 9

Two types of primers

Answer 9

1. Boxer- one flash hole. The boxer had a cup shaped igniting system having the anvil and flash powder built in
2. Berdan- two flash holes. The berdan contains only the flash powder, the anvil is part of the cartridge case and has two flash holes. Non reload able

Question 10

8 locking system

Answer 10

1. Rotating bolt
2. Rising/lowering bolt
3. Roller
4. Rising barrel
5. Locking flaps
6. Swinging bolt
7. Locking block
8. Rotating barrel

Question 11

8 operation systems

Answer 11

1. Bolt action
2. Blowback
3. Delayed blowback
4. Recoil
5. Recoil with gas assist
6. Gas operation
   - gas blast
   - gas tappet
   - gas direct
7. Manuel pump
8. Revolving cyclinder

Question 12

Battle sight

Answer 12

The range that allows you to hit the target between the throat and waist without site adjustment. Exact range varies with caliber of weapon

Question 13

Breech

Answer 13

The outside rear face of the barrel which meets the face of the bolt or breech block

Question 14

Breech block

Answer 14

A component that seals the breech and blocks the gases from the fired cartridge

Question 15

Caliber

Answer 15

The distance across the bore of a weapon, measured from land to land expressed in hundredths of a inch.

Question 16

Disconnector

Answer 16

A device incorporated in the action of a weapon which prevents the weapon from firing more than one round for one pull of the trigger. Or which prevents them weapon from firing until the action is fully closed.

Question 17

Ejector

Answer 17

A cam or projection inside the receiver against which the cartridge case strikes and is thrown clear of the mechanism after it has been drawn from the chamber by the extractor

Question 18

Extractor

Answer 18

A component that engages the rim or extractor groove of the cartridge case while the cartridge is in the chamber. After firing the extractor withdraws the case from the chamber when the action opens

Question 19

Headspace

Answer 19

The distance from the breech block to the part of the chamber which’s stops the foreword movement of the cartridge case.

Question 20

Rifiling

Answer 20

A series of spiral grooves in the bore of a barrel which imparts a spinning motion to the bullet as it travels the length of the barrel from breech to muzzle

Question 21

Sear

Answer 21

A component retained under spring tension which release by means of a trigger either a firing,hammer, or bolt

Question 22

Trigger

Answer 22

A finger activated lever used to activate the firing mechanism firing the weapon

Question 23

Trigger bar

Answer 23

A connecting bar operating between the trigger and the sear. Nothing more than an extension of the trigger.

Question 24

Types of firing

Answer 24

Single action (SA)
Double action (DA)
Semi auto ( semi auto only)
Automatic ( auto only)
Selective fire ( sel- fire)