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2w051 e6 study guide version M05 > 2w051 Module 5 > Flashcards

2w051 Module 5 Flashcards

1
Q

What explosive do we use as the comparison for measuring explosive power?

A

tnt

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2
Q

What general requirements must material used to manufacture military explosives meet?

A

Must be cheap, plentiful, and not vital to any other phase of the war effort.

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3
Q

What is the brisance of a military explosive?

A

The shattering or fragmentation effect.

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4
Q

What term describes the tendency of a substance to produce vapors

A

Volatility.

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5
Q

What is meant by explosive toxicity?

A
  1. An explosive’s poisonous characteristics.
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6
Q

When a military explosive does not react with the metal that encases it or with another explosive, it is said to have what characteristic

A
  1. A natural compatibility.
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7
Q

What is hygroscopicity?

A
  1. The moisture-absorbing property of an explosive.
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8
Q

What is the autocombustion rate of low explosives?

A
  1. A few inches per minute to 1,300 feet per second.
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9
Q

What term do we use to describe the tendency of a substance to burn with a rapid
and sparkling combustion?

A

Deflagration.

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10
Q

What condition is essential for an explosive to detonate rather than to merely
deflagrate?

A
  1. It must be confined.
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11
Q

What are the basic components of an explosive train?

A
  1. Detonator, booster, and bursting charge.
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12
Q

What is the relatively small and sensitive initial component that begins the
functioning of the explosive train

A

Primer.

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13
Q

What are the two means by which we can activate a detonator

A
  1. The action of a primer or by a non-explosive impulse.
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14
Q

What is the purpose of a delay in an explosive train

A
  1. A delay controls the timed delay in the functioning of the train.
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15
Q

What does an explosive booster do?

A
  1. Amplifies the detonation received from the detonator to detonate the main charge.
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16
Q

Which effect of a general-purpose (GP) bomb does the most damage: blast or
fragmentation?

A

Blast.

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17
Q

What effect causes greater penetration of the explosive charge?

A
  1. Munroe effect.
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18
Q

What happens when you increase the standoff distance of an explosive?

A
  1. Its penetrating capability is increased.
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19
Q

What are the four factors that control the visibility of pyrotechnics?

A
  1. (1) Candlepower.(2) Color.(3) Weather.(4) Light.
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19
Q

How do we classify pyrotechnics?

A
  1. According to their purpose as illuminants, signals, combinations of signal and illuminants, and simulators
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20
Q

What type of weather reduces the visibility range of pyrotechnics?

A
  1. Moist weather, rain.
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21
Q

What are the two effects of signals?

A
  1. Light and smoke.
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22
Q

How can you identify pyrotechnic ammunition?

A

By its nomenclature, lot number, model designation, painting, marking, national stock
number, and Department of Defense identification code

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23
Q

How does one ignite the AN–MK13 flare?

A

Pulling on the pull ring removes the soldered closing cap and pulls a brass wire through a
small cup of friction-igniting composition

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24
Q

Which day/night signal is designed to be used with only one hand?

A

The MK124 Mod 0 and MK124 Mod 1

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25
Q

What is the difference between the A/P 25S-5A and the A/P 25S-5B?

A

Penetrate a heavy foliage canopy

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26
Q

What is the approximate distance that the M127A1 ground illumination signal propels
from the launcher?

A

Approximately 20 feet from the launcher

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27
Q

What are the five main assemblies of the M131 ground illumination signal?

A

(1) Launcher.(2) Igniter.(3) Motor.(4) Delay.(5) Parachute and Illumination composition

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28
Q

What is the M131 signal designed to do?

A

To produce a distinctive red light above the ground fog, haze, or overcast

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29
Q

Which military weapons do we classify as “small arms”?

A

Those with a bore diameter (inside diameter of the barrel) of 0.50 inch or less

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30
Q

What terms do we use to describe the measurement of small arms

A

Gauge and caliber

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31
Q

What is the process we use to determine the shotgun ammunition gauge?

A

Gauging is the process we use to determine a number value for diameter of the bore; that
is, how many lead balls the same diameter as the gun’s bore equal 1 pound

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32
Q

What color is the tip of an AP bullet painted

A

Black

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33
Q

Ball ammunition is used against what type of targets

A

Personnel or light materiel targets.

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34
Q

What is the purpose of tracer rounds

A

To illuminate the path of the bullets so the gunner can correct his/her aim

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35
Q

What is non-combat ammunition used for?

A

Training and weapons testing

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36
Q

Which type of round do we use for weapons load training?

A

Dummy.

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37
Q

What is a small-arms cartridge?

A

A complete assembly of all components necessary to fire the weapon once

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38
Q

What causes a bullet to spin?

A

The rifling in the gun barrel

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39
Q

What determines the core/filler of a bullet?

A

The ammunition’s purpose

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40
Q

What is the term for the recess groove part of the bullet into which the cartridge
case is crimped during assembly

A

Cannelure

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41
Q

What are the classifications of Air Force grenades

A

Service, practice, and training

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42
Q

What can functional hand grenades be used for

A

Inflict casualties or damage and for screening and signaling

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43
Q

What are the tactical classifications of service grenades

A

Fragmentation, irritant, riot control, screening smoke, signaling smoke, and incendiary

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44
Q

How long does the delay element burn within the fragmentation hand grenades

A

The delay element burns for 4 to 5 seconds

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45
Q

Why is the base of the M34 grenade tapered

A

So that the grenade can be mounted on an M1A2 grenade projection adapter

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46
Q

What are the uses of the M25-series grenades

A

Riot and disturbance control

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47
Q

Why must M34 grenades be stored fuze end up?

A

To avoid possible leakage of the filler

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48
Q

What are some of the things that you look for in inspecting grenades?

A

Damaged, rusted, or poorly marked inner or outer containers. Unauthorized fuzes and for
deformed or missing safety pins. Look for leaking or exuding fillers; cracks, damage, or corroded
grenade body or fuze; loose fuze; lot number of fuze or grenade unknown; missing markings

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49
Q

What is the killing agent of the M18A1 antipersonnel mine?

A

700 steel balls

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50
Q

What is the effective kill range of the M18A1 mine?

A

100 meters

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50
Q

What safety precaution must you observe with the detonation of a claymore mine?

A

Personnel up to 100 meters to the sides and rear of these mines should take cover for
protection.

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51
Q

What initiation source do we primarily use to detonate high-explosives (HE)?

A

Blasting caps.

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51
Q

What is the purpose of the M60 igniter

A

It is used to light a safety/time fuse

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51
Q

What are the two ways in which blasting caps can be fired?

A

Electrically or nonelectrically

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52
Q

What is the purpose of the initiator well on the trinitrotoluene (TNT) demo block

A

Receiving the initiating explosive/charge

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52
Q

What is the purpose of the yellow painted bands covering military safety fuses

A

To estimate the length for tactical situations, the single bands are designated for 1-minute
lengths and the double bands are designated for 5-minute lengths

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52
Q

What is the rate of detonation for detonating cord

A

Between 20,000 and 21,000 feet per second

52
Q

For what do we use a flash vented squib

A

It is used to ignite pyrotechnic or incendiary compositions or black powder

53
Q

What is the advantage of military dynamite over commercial dynamite

A

Military dynamite is safer to store, transport and handle

54
Q

What is the M1 clip used to hold together

A

Two strands of detonating cord

54
Q

What is the purpose of the M1A4 priming adapter

A

It is used to secure electric or nonelectric blasting caps in a threaded activator well of a
demolition charge

55
Q

What do we use a galvanometer for

A

To check electrical circuits and their components

56
Q

How do we classify bomb fuzes

A

By their position, action, and method of arming

57
Q

Name the three main types of fuze action.

A

(1) Impact.(2) Time.(3) Proximity

58
Q

What determines the detonation of a proximity fuze?

A

The bomb reaching the preset height of function above the target

59
Q

What is the main type of fuze arming?

A

Electronically timed

60
Q

What are the most common safety devices found in bomb fuzes?

A

Seal wires, cotter pins, safety blocks, and the detonator safe feature

61
Q

What fuze safety device is installed at the time of manufacture?

A

Safety block

62
Q

Name at least three different electrical fuzes.

A

1) FMU–139.(2) FMU–143.(3) FMU–152

63
Q

Which two fuzes are used by both the Navy and the Air Force?

A

FMU–139 and FMU–152.

64
Q

What provides electrical power in the FMU–139 series fuze?

A

FZU–48 initiator.

65
Q

What provides electrical power in the FMU–143 series fuze?

A

FZU–32 initiator

66
Q

What capability does the FMU–152 series fuze provide

A

Hardened target capability that provides safing, in-flight cockpit selection, and arming fuzing
functions for general purpose and penetrating, unitary warheads

67
Q

What can be determined if the gag rod indicator is showing red and protruding from the safety pin housing of an FMU–152 series fuze

A

That the fuze is armed

68
Q

What type of sensor is the DSU–33?

A

Doppler ranging radar proximity sensor

69
Q

Which tail fuzes are used with the DSU–33?

A

FMU–139 and FMU–152

70
Q

Which dispenser(s) uses the FZU–39/B proximity sensor?

A

The SUU–64/B, SUU–65/B and SUU–66B.

71
Q

What are the function height settings for the FZU–39/B?

A

Ranges from 300 to 3,000 feet

72
Q

What are the combined effects of the MK80 series bombs

A

Blast, penetration, and fragmentation

73
Q

Which MK80 series bomb weighs approximately 500 pounds

A

MK 82 series

74
Q

Which BLU series bomb uses the MK83 Mod 4 bomb body?

A

The BLU–110.

75
Q

How can an MK82 series bomb produce a mining or penetrating effect?

A

By using delayed action fuze

76
Q

What is the NEW of the MK84 bomb?

A

945 pounds

77
Q

What are penetrator bombs designed to do?

A

Designed to be used on hardened targets. Examples are HAS, reinforced concrete buildings,
underground command and control facilities, and runways

78
Q

What are the four penetrator bombs the Air Force uses?

A

1) BLU–109 series.(2) BLU–113 series.(3) BLU–118 series.(4) BLU–122 series

79
Q

What is the BLU–109/B penetrator bomb capable of doing?

A

It can penetrate 4 to 6 feet of reinforced concrete

80
Q

Which penetrator has the case constructed of modified HP9420 alloy steel?

A

BLU–113

81
Q

Which penetrator is used as the warhead for the GBU–28 A/B, GBU–28 B/B, and GBU–28E/B?

A

BLU–113

82
Q

What penetrator bomb is designed to be more lethal in confined spaces?

A

BLU–118

83
Q

What is the payload of the M129 series bomb

A

8 to 10 leaflet rolls

84
Q

What bomb was developed to drop leaflets from the SUU-76C/B dispenser

A

PDU–5/B

85
Q

The BLU–126/B LCDB designed to be used in what type of situations?

A

Situations where friendly forces and/or civilians are close to the target

86
Q

What is the NEW of the BLU–126/B LCDB?

A

27 pounds.

87
Q

Why are practice bombs used instead of regular live bombs during training?

A

To provide low-cost target practice for the flight crews of fighter and bomber aircraft and also
used by the ground crew for identifying, assembling, fuzing, and bomb handling training

88
Q

When would you use the CXU–3A/B spotting charge?

A

When the danger of starting brush or forest fires is high

89
Q

How many and what type of submunitions are loaded in a CBU–105?

A

10 each BLU–108/B submunitions

90
Q

The CBU–105 series is designed for what type of target?

A

Tanks and armored support vehicles

91
Q

How does a BLU–108 submunition device destroy a detected target?

A

Fires an explosive forged penetrating projectile at the target

92
Q

Which CBU series is considered to be wind-corrected munitions?

A

CBU–103, CBU–104, and CBU–105

93
Q

How does the WCMD function?

A

The WCMD tail kit provides guidance and navigation during free flight. Correction for wind
effects, ballistics dispersion and launch transients for munitions delivered from high altitude are
communicated with the carrier aircraft prior to weapon separation. The control actuation
assembly cants the fins to spin the dispenser during flight.

94
Q

How is an API round initiated

A

On impact.

94
Q

How are 20 mm cartridges classified?

A

According to their purpose

95
Q

What is the semi-armor piercing, high-explosive and incendiary PGU-28 series round used for?

A

Aircraft and light materiel targets

96
Q

What are the combat effects of a HEI round?

A

It is a combined explosive and incendiary effect.

97
Q

Name two uses for 20 mm dummy ammunition.

A

(1) Testing feeder assemblies.(2) Drill/familiarization

98
Q

The 20 mm cartridge case is usually made of what material?

A

Brass (M103) and Steel (M103A1

99
Q

What is the purpose of the bourrelet

A

It acts as a forward-bearing surface to prevent the projectile from wobbling as it passes
through the bore

100
Q

What do the other chemicals in double-base propellant do

A

They minimize smoke and flash, increase stability, and permit uniform loading during
manufacture.

101
Q

Which 20 mm round requires a fuze to detonate the projectile

A

The HEI round.

102
Q

What is the safety feature of the M505 fuze

A

The fuze is bore safe

103
Q

How can we identify 20 mm ammunition

A

By model number, lot number, and manufacturer’s symbol, all of which are marked or
stamped on the side of the projectile

104
Q

What container are 20 mm rounds stored in

A

The M548 container (linkless or linked belt).

105
Q

What Air Force aircraft fires the 25 mm round

A

The F-35 Joint Strike Fighter.

106
Q

What is 25 mm PGU–23/U ammunition used for?

A

Target practice for pilot proficiency training

107
Q

What does the PGU–25 series high-explosive incendiary round consist of

A

steel cartridge case, an M115 percussion primer, an ignition booster, a projectile, and an
M505 series fuze

108
Q

What is 25 mm cartridge case made of

A

Steel

109
Q

A functioning M115 percussion primer is used with which 25 mm round(s)?

A

All 25 mm rounds except for dummy rounds

110
Q

What fuze is used in the 25 mm HEI round

A

M505 series

111
Q

What markings can you find on the cartridge case of 25 mm ammunition

A

Model number, type, and lot number

112
Q

What are 25 mm rounds packaged into for storage

A

CNU–405/E ammunition shipping and storage containers.

113
Q

How do we classify 30 mm ammunition

A

According to its purpose.

114
Q

PGU–15 ammunition is used for what purpose

A

Pilot training, weapon testing, and aircraft system checkout

114
Q

What impact fuze is used on the 30 mm HEI round

A

M505A3.

115
Q

What are the two purposes of the fumer charge in the APIT rounds

A

(1) Reduce air drag during flight to the target.(2) To give a visible trace of the flight path

116
Q

What does the projectile retaining screw in the PGU–16 series dummy round do

A

It holds the projectile in the cartridge and simulates the weight of the propellant and the
center of gravity of the round

117
Q

The 30 mm cartridge case is made of what material

A

Aluminum

118
Q

What type of propellant does the 30 mm round use

A

The high-pressure gases it produces as it burns drive the projectile out of the gun barrel

119
Q

How can you identify 30 mm ammunition

A

By its model number, lot number, part number, and color coding

120
Q

What color(s) are 30 mm API and APIT rounds painted

A

Both rounds have a black projectile with a red band and white markings

121
Q

How are 30 mm dummy rounds identified

A

Bronze or gold projectile with black markings

122
Q

How are USAF 105 mm rounds classified

A

As fixed complete rounds depending on their use/function

122
Q

What are some uses for the 105 mm HE round

A

Conventional fire support for harassment and interdiction, fragmentation, mining, and blast
effect.

123
Q

What point detonating fuze is used with the PGU–44/B

A

FMU–153

124
Q

If the proximity mode fails, how does the FMU–160/B fuze detonate

A

By impact (point detonating backup

125
Q

What is the NEW of the PGU–43/B TP round

A

0.3 pound TNT supplementary charge

126
Q

What round is designed to remove a projectile lodged in the bore of a 105 mm
cannon

A

The 105 mm clearing round.

127
Q

When are mechanically-operated initiators fired

A

When the initiator pin is withdrawn by a force of 12 to 35 pounds

127
Q

Once an initiator supplies the pressure needed for the firing mechanism, what jobs
can thrusters perform?

A

Position ejection seats, stow control columns, and open the canopy or escape hatch locks

127
Q

Name three examples of a CAD.

A

(1) Initiators.(2) Thrusters.(3) Catapults

128
Q

What are catapults specifically designed to do

A

Eject the pilot’s seat and the pilot from an aircraft under emergency situations

129
Q

What do removers do

A

Jettison the canopy forcibly from the aircraft.

130
Q

What is a propellant-actuated device (PAD)?

A

A device that uses a propellant that is an integral part of the device to provide a source of
gas pressure to perform its intended function

131
Q

What are impulse cartridges used for?

A

To furnish explosive power to separate munitions, fuel tanks, launchers, dispensers, racks,
etc., from an aircraft.

2w051 e6 study guide version M05 (7 decks)

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