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cpi > Explosive > Flashcards

Explosive Flashcards

1
Q

solid or liquid
substance (or a mixture of substances)
that is in itself capable by chemical
reaction of producing gas at such a
temperature and pressure and at such a
speed as to cause damage to the
surroundings

A

Explosive

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2
Q

the discove• of nitroglycerin and nitrocellulose

A

Before 1850

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3
Q

the invention of dynamites and mercu• fulminate blasting
cap

A

After 1850

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4
Q

smokeless powder was made

A

1867

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5
Q

Where do we employ explosive

A

Mining, digging, trucks and airplanes

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6
Q

material that, under the influence of thermal or mechanical shock, decomposes rapidly and spontaneously with the evolution of a great deal of heat and much gas.

A

Explosive

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7
Q

differ widely in their sensitivity and power

A

Explosive

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8
Q

Classification of explosive

A

Initiating or primary explosives (detonators)
High explosives-trinitro-toluene (T.N.T)
Low explosives or propellants-colloided cellulose nitrate (smokeless powder)

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9
Q

sensitive materials which can be made to explode by the application of fire or by means of a slight blow

A

Initiating or primary explosives

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10
Q

used in primers, detonators, and percussion caps

A

Initiating or primary explosives

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11
Q

insensitive to both mechanical shock and flame

A

High explosive

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12
Q

explode with great violence when set off by an explosive shock such as that which would be obtained by detonating a small amount of an initiating explosive in contact with the high explosive.

A

High explosive

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13
Q

In high and primary explosives, decomposition proceeds by means of

A

Detonation

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14
Q

rapid chemical destruction progressing directly through the mass of the explosive

A

Detonation

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15
Q

used as a booster between the initiating and high explosive

A

Tetryl

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16
Q

Mode of decomposition of low explosive

A

Burning

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17
Q

evolve large volumes of gas on combustion in a definite and controllable manner

A

Low explosive

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18
Q

Less shattering

A

Low Explosive

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19
Q

phenomenon that proceeds not through the body of the material but in layers parallel to the surface

A

Burning

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20
Q

refers to all black powder having sodium or potassium nitrate as a constituent

A

Black blasting powder

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21
Q

One which has been approved by the US Bureau of Miners or British Ministry of Fuel and Power for use in gas or dust-filled mines

A

Permissible explosive

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22
Q

Examples of permissible explosives

A

Ammonium nitrate explosive
Hydrated explosive
Organic nitrate explosive
Nitro-glycerin explosive

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23
Q

constitutes over 65 percent of the weight of the permissible

A

Ammonium nitrate explosives

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24
Q

contain an excess of free water or carbon

A

Nitro-glycerine explosives

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25
Q

Power or Brisance of an explosive may be measured by exploding a small quantity of it in a ___________

A

Sand bomb

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26
Q

a heavy-walled vessel designed to resist the explosion without being ruptured

A

Sand bomb

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27
Q

It is a nitro-cellulose produced in this manner contains about 12.6%
nitrogen

A

Pyrocotton

28
Q

Velocity of detonation is dependent on many factors including the
composition of the explosive, the density at which it was loaded after firing, and
the degree of confinement

A

False (before)

29
Q

How deep is the center hole of the trauzl block?

A

125 mm

30
Q

Mixture of strong oxidizing agents, oxidizable material and material acting as binders that alter the character of the flame with color-producing chemical

A

Pyrotechnics

31
Q

Tetryl also is used as a booster between the initiating and low explosive

A

False (high)

32
Q

Sensitive materials which can be made to explode by the application of fire or by means of a slight blow. It is also used in primers, detonators, and percussion caps

A

Initiating explosive

33
Q

It contains an explosive mixture of sulfur, charcoal, and saltpeter.

A

Black powder

34
Q

Considered to be one of the most useful explosives.

A

Black basting powder

35
Q

Sand bomb contains 200 grams of _________________.

A

Ottawa silica sand

36
Q

Manufactured by the nitration of mixed phenolsulfonates with mixed acid.

A

Picric acid

37
Q

What is the oldest chemical weapon known to humans

A

Flammable mixture

38
Q

Used as a base charge in blasting caps, booster explosive in high-explosive shell, and ingredient of binary explosives

A

Tetryl

39
Q

The finished nitro-cellulose should not be allowed to become acid in use or storage as this catalyzes its further decomposition.

A

True

40
Q

measures the power of the explosive by measuring the ballooning of a soft lead cylinder in which the explosive is inserted and exploded.

A

Trauzl block test

41
Q

Thought to be a combination of strength and the velocity

A

Brisance

42
Q

determined by finding the height from which a standard weight must be allowed to fall in order to detonate the explosive

A

Sensitivity of explosive to impact

43
Q

contains a small amount of a primary explosive or sensitive mixture

A

Primer

44
Q

designed for armor piercing must have heavy walls and contain an explosive so insensitive to impact

A

Projectile

45
Q

Violently decomposed at high temperature

A

Ammonium

46
Q

2 suitable explosive for projectile

A

Ammonium nitrate
Guanidine picrate

47
Q

Special projectiles loaded with lead balls embedded in a matrix of rosin or bakelite and
equipped with a time fuze

A

Shrapnel

48
Q

stop futher
decomposition

A

Stabilizer

49
Q

nitro-cellulose produced in this manner contains about 12.6%
nitrogen

A

Pyrocotton

50
Q

Cotton nitrated to contain 13.2% nitrogen or greater

A

Guncotton

51
Q

contains about 13.15% nitrogen
and is made from a blend of pyro- and guncotton

A

Modern military smokeless powder

52
Q

colloided nitro-cellulose containing about 1% of
diphenylamine to improve its storage life and a small amount of a
plasticizer

A

Black powder

53
Q

oldest known propellant

A

Black powder

54
Q

replace black powder for its smokelessness, superior power, and better
storage characteristics

A

Smokeless powder

55
Q

low explosives consisting of fuels that include their own
oxidant or other reactants necessary to cause the planned
reaction

A

Rocket propellant

56
Q

added to the combustion chamber as
liquids used in a single propellant system, seing as fuel,
oxidizer, and catalyst

A

Liquid propellant

57
Q

used in bipropellant systems

A

Liquid propellant

58
Q

fuels and oxidizers
stored in two fuel tanks and fed separately to the combustion
chamber

A

Bipropellant

59
Q

combined the fuel and oxidizer in one mixture

A

Monopropellant

60
Q

used
in large high-performance rockets for their specific impulse and
low cost

A

LOX and LH2

61
Q

a type of spacecraft that require rocket propulsion for
launching

A

Artificial satellite

62
Q

can be placed without backing devices

A

Explosive rivet

63
Q

extremely reliable on space missions and in industrial emergency
devices

A

Explosive thrustor

64
Q

form plate heat exchangers

A

Explosive wilding

65
Q

mixture of strong oxidizing agents, oxidizable
material and material acting as binders that alter the character of
the flame with color-producing chemical

A

Pyrotechnics

66
Q

splitting of an atom into two or more smaller ones

A

Nuclear

cpi (7 decks)

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