Quiz

Question 1

It is a small container or wafer of explosive material used to ignite the gunpowder

Answer 1

Primer

Question 2

The upper portion of the primer cup which is the complete assembly of priming composition,
paper disk, anvil and vent.

Answer 2

primer

Question 3

Contains a highly sensitive mixture of chemical compound which when struck by the firing pin would detonate or ignite. Such reaction is called percussion.

Answer 3

primer

Question 4

Composition of Priming Mixture

Answer 4

1. Potassium Chlorate – 45 %
2. Antimony Sulfite – 23%
3. Fulminate Mercury – 32%

Question 5

– the first to conceive an idea of using a detonating compound for igniting powder charge in small arms by percussion, and obtained a patent for this idea. He was then considered as the Father of Percussion.

Answer 5

Alexander John Forsyth

Question 6

has ONE vent/flash hole invented by Colonel Edward M. Boxer, a British Army.

Answer 6

Boxer Primer

Question 7

has TWO vents/ flash holes, invented by Colonel Hiram Berdan, a US Army

Answer 7

Berdan Primer

Question 8

has THREE vents/flash holes

Answer 8

Berdan-Boxer Primer

Question 9

used for shotgun shells, a variation of Berdan

Answer 9

Battery cup type

Question 10

early primers

Answer 10

corrosive

Question 11

mostly used at present

Answer 11

non-corrosive

Question 12

where the priming mixture is crushed by blow from the firing pin.

Answer 12

anvil

Question 13

piece of small paper or disk of tin foil that contains the priming mixture that is being pressed over the anvil. It has 2 purposes: 1) To hold priming mixture in place and 2) To exclude moisture.

Answer 13

disc

Question 13

container of the anvil, disc and priming mixture. This is made of brass, gilding
metal or copper.

Answer 13

primer cup

Question 13

is a highly sensitive mixture of chemical compound contained in the primer
cup

Answer 13

priming mixture

Question 13

gives up its oxygen readily. The oxygen is needed to burn the fuel

Answer 13

oxidizer (barium nitrate)

Question 13

set off with a sharp blow, as when the firing pin strikes the primer
cup.

Answer 13

initiator (lead atyphnate)

Question 13

burns the gunpowder in very high rate that results to the propulsion of bullet

Answer 13

fuel (antimony sulfide)

Question 14

in order to fire before, the gunpowder must have to be ignited

Answer 14

igniting the propellant

Question 15

were the earliest firearms which use closed tubes, that needs manual ignition of its
gunpowder

Answer 15

cannons

Question 16

a small aperture drilled in the closed end of the tube, leading to the main powder charge. This hole was filled with finely ground powder, which was then ignited with a hot ember or torch

Answer 16

touchhole

Question 17

around the rim

Answer 17

rimfire

Question 17

external pin is used in igniting the priming mixture

Answer 17

pinfire

Question 18

combination of rim and pinfire, uses a pin that strikes a ring of a priming
compound

Answer 18

peripheral primer

Question 19

no rim. rounded at the rear, with a small “teat” that would protrude through a tiny opening in the rear of the cylinder

Answer 19

teat-fire

Question 19

primer is located at the center

Answer 19

centerfire

Question 20

Used by larger military gun and cannon rounds (such as the M50 20mm) utilize an internal electric primer that is activated by an externally-provided electric charge

Answer 20

electric-primed

Question 21

A a British Army who has invented ONE vent/flash hole.

Answer 21

Colonel Edward M. Boxer

Question 22

a US Army who invented TWO vents/ flash holes.

Answer 22

Colonel Hiram Berdan