A requirement for military explosives is that raw materials must be
cheap
nonhygroscopic
common to America
vital to the war effort
Volatility is the tendency of a substance to produce
pressure
energy
vapors
heat
What property of an explosive do we refer to by the word “hygroscopicity?”
Moisture-absorbing property
Tendency to produce sensitive metallic salts.
Ability of an explosive to be cast into a mold or form
Ability to liberate gaseous products during detonation.
Upon what factor does the rate of detonation depend?
Degree of confinement and loading density
Degree of confinement and volatility
Volatility and loading density
Loading density only
What are the basic components of an explosive train?
Fuze, detonator, booster, and bursting charge.
Detonator, booster, and a bursting charge.
Fuze, booster, and a bursting charge.
Detonator and booster only
What does an explosive train booster do?
Detonates the fuze
Detonates the main charge
Transmits energy from one detonating component to the next
Controls the delay in the functioning of the fuze explosive train
How can you achieve an airburst with a general-purpose bomb?
Use a time action high-explosive (HE) train
With a super quick action HE train
With a delay action HE train
Use a nondelay delay
What effect does more damage than the fragmentation effect of a specific bomb?
Heat
Blast
Detonation
Penetration
The penetrating action of a shaped charge is the result of the
size of the burster charge
type and amount of explosive
shock wave and a jet of dense gas
density and thickness of the target
The four factors that control the visibility of pyrotechnics are candlepower, color, weather, and
light
altitude
humidity
chemical composition
What are the classifications of pyrotechnics?
Illuminants and signals only
Illuminants and igniters only
Illuminants and combinations of signals only
Illuminants, signals, combinations of signals and illuminants, and simulators
When considering pyrotechnics, two types of effects for signals are
fire and flash
heat and flash
smoke and heat
light and smoke
What do the colored bands, letters, or patches on signal munitions indicate?
Color of the signal produced
Type of pyrotechnic ammunition
Different factory modification of signals
Different manufacturer identification codes
What pyrotechnic effect is produced by the AN–MK13 signal?
Noise only
Flare and noise
Smoke and flare
Smoke and noise
When and where is the MK124 Mod 0 signal used?
Day and land use only
Night and sea use only
Day or night, land use only
Day or night, land or sea use
How much light does the M127A1 signal produce?
50,000 candlepower
100,000 candlepower
1,000,000 candlepower
2,000,000 candlepower
What is the largest caliber ammunition that we classify as “small arms”?
Caliber .38
Caliber .50
5.56 millimeter
7.62 millimeter
What shotgun round is the exception to the gauging principle?
.22
.30
.50
.410
What hazard is involved in using blank ammunition?
Ejection of the primer
The wad can cause injury
There is no significant hazard
Fragmentation of the projectile
What are the components of a typical small-arms cartridge?
Cartridge case, primer, bullet, and propellant
Cartridge case, primer, bullet, and detonator
Cartridge case, shot pellets, and propellant
Cartridge case, propellant, and tracer
What substance is the explosive filler for the M30 practice grenade?
Inert powder
Black powder
Composition B
White phosphorus
How far in front of an M18A1 mine do we consider inside the danger zone?
50 meters
100 meters
250 meters
300 meters
How far behind an M18A1 mine should personnel take cover before they fire it?
What mortar has a short range and a small explosive charge?
Short
Light
Heavy
Medium
What device(s) do we use to detonate high explosives (HE)?
Firing wire
Blasting caps
Galvanometer
Detonating cord clip
What device is used to initiate time fuse?
M60 igniter
Blasting machine
The M112 demo block is made of what substance?
Ammonia
Nitroglycerin
Composition C–4
The difference between commercial dynamite and military dynamite is that military dynamite does not contain
initiators
nitroglycerin
gelatin dynamite
ammonia dynamite
In what length is fire wire issued?
50 feet
100 feet
500 feet
1000 feet
How do we classify bomb fuzes?
Action and contents
Position and action
Method of arming and contents
Position, action, and method of arming
The main types of fuze actions are impact, time, and
electrical.
hydraulic
proximity
inertia
Where is a proximity fuze placed on the bomb?
Nose
Tail
Nose and tail
Between the lugs
In an electronically-timed fuze, what component replaces the arming vanes used in mechanically timed fuzes?
Battery-firing device
Arming lanyard assembly
Electric charging assembly
Electronically timed sensor
The design of which safety feature is to prevent movement of the arming heads, arming stems, and strikers while the fuze is being handled?
Seal wires
Cotter pins
Safety blocks
“Detonator safe” feature
What action must you take to set the “SECONDS TO ARM” setting below six seconds on an M904 fuze?
Depress the time lock
Install the stop screw in the fuze body
Remove the stop screw from the fuze body
Depress the detent pin on the arming vane shaft
What adapter booster is used with the M904 fuze?
T44
T45
T46
FZU–2/B
In a bomb body, where is the M905 fuze installed?
Either the nose or the tail
The nose fuze well
The tail fuze well
The FMU–54 series tail fuzes are used in
laser-guided bomb series
BLU–109/B series guided bombs
MK80 and M series general-purpose bombs with conical fins
MK80 series general-purpose bombs with an air inflatable retarder
With electrical fuzes, which device is used in place of arming wire?
Bungee cord.
Linear-shaped charge
Target-detecting device
How many FZU–2/B boosters are used with the FMU–81/B fuze when installed in the nose fuze well and the tail fuze well, respectively?
One; four
Four, two.
Two; four
Four; one
What component provides the electrical power needed to operate the FMU–139A/B fuze?
FZU–39/B sensor
FZU–48/B initiator
MK32 Mod 1 arming device
The FMU–143 series fuze was designed for use in
chemical bombs
penetration bombs.
land and sea mines
blast and fragmentation bombs
What provides the electrical power needed to operate the FMU–143 series fuze?
FZU–55 series fuze initiator
FZU–32 series fuze initiator
What hazard is associated with the DSU–33 proximity sensor?
Explosives
Fragmentation
Thermal battery
Radio frequencies
Which sensor is a radio frequency (RF) radar ranging system used with the suspension utility unit (SUU)–64/B, SUU–65/B, and SUU–66/B dispensers?
FZU–39/B
FMU–56/B.
FMU–110/B
FMU–124/B
What does HOF stand for on the FZU–39/B proximity sensor?
Hour of flight.
Hour of function
Height of function
Height of fragmentation
What component is used to adapt a nose fuze for an M series bomb?
Fuze adapter
Bomb adapter
Adapter booster
Adapter burster
Which fin provides a high-drag, low-altitude bombing capability for the M117 bomb?
BSU–50/B
BSU–49/B
BSU–93/B
MAU–103
Which air inflatable retarder (AIR) fin is used on the MK82 bomb?
BSU–92
What air inflatable retarder (AIR) fin is used on the MK84 bomb?
Which bomb is used as the warhead in the GBU–28A/B?
BLU–113
BLU–118
BLU–122
BLU–126
Which bomb is filled with a thermobaric explosive?
Externally, the M129 leaflet bomb is similar to the
M117, 750-pound bomb
MK82, 500-pound bomb
MK84, 2,000-pound bomb.
BLU–109, 2,000-pound bomb
Which suspension utility unit (SUU) does the PDU–5/B utilize?
SUU–64/B
SUU–65/B
SUU–66/B
SUU–76C/B
The BLU–126/B bomb is identical to the
MK82, 500-pound bomb.
What is the net explosive weight (NEW) of the BLU–126/B?
27 pounds
92 pounds
192 pounds
270 pounds
What is the weight of the BDU–33 series practice bomb?
10 pounds
20 pounds
25 pounds
45 pounds
The BDU–48/B resembles the ballistics of the
MK82 high-drag munition
MK82 low-drag munition
M117 high-drag munition
MK84 low-drag munition
Which suspension utility unit (SUU) dispenser does the CBU–87 cluster bomb use?
SUU–66
SUU–65
SUU–64
SUU–30
Which submunitions are loaded into a CBU–87 cluster bomb?
BLU–61 bomblets
BLU–63 bomblets
BLU–97 bomblets
MK118 bomblets
What is the only difference between the CBU–87/B and the CBU–87A/B cluster bombs?
The A/B has modified bomblets
The A/B has the live FZU–39/B sensor installed
The B comes in a different container
The B has the live FZU–39/B sensor installed
How many different types of bomblets are loaded into a single CBU–89/B cluster bomb at one time?
1
2
3
4
How many projectiles are contained in each BLU–108/B submunition?
What ejects the BLU–108 series submunition into the airstream?
Drogue parachute
Airbag ejection system
Linear shape cutting charge
The components of a wind corrected munitions dispenser consist of a fin guidance system, a variable position umbilical connector, and
dummy fuze.
rocket motor
signal cartridge
operational flight program
Which wind-corrected munitions dispenser component cants the fins to spin the dispenser during flight?
Gas grain generator
Fin lanyard assembly
Fin stabilizer assembly
Control actuation assembly
What 20 millimeter (mm) round is used for drill or testing feeder assemblies?
Target practice tracer
Target practice
Dummy
Inert
What M505 series fuze safety feature prevents accidental arming during handling?
Fuze is bore safe
M505 series fuze is inertia armed
Rotor assembly is safety pinned until loading
M505 series fuze does not have a safety, but it does require very careful handling
What is the arming delay distance for the M505 fuze?
5–10 feet
10–35 feet
45–50 feet
50–55 feet
The identifying information on a 20 millimeter (mm) round of ammunition is marked on the
bourrelet
projectile
primer
fuze
When 20 millimeter (mm) ammunition is bulk-packed, how many rounds may you expect to find in an M548 container?
50–100
150–175
200–250
275–300
What aircraft cannon fires the 25 millimeter (mm) round?
GAU–2.
GAU–8
GAU–12
GAU–18
How can you tell a 25 millimeter (mm) dummy cartridge from other 25 mm rounds?
Dummy cartridge is painted blue.
Dummy cartridge is hollow and lighter
Dummy cartridge projectile is nonseparable and the total cartridge is gold in color
Dummy cartridge projectile is gold in color with white lettering on the cartridge case
When 25 millimeter (mm) ammunition is bulk-packed, how many rounds you expect to find in a CNU–405 container?
80 or 100
150 or 175
200 or 250
275 or 300
How is ignition from the primer carried to the propellant in a 30 millimeter (mm) target practice round?
The primer vents directly into the propellant
The propellant is ignited electrically when the gun is fired
The primer ignites black power in a flash tube, which ignites the propellant
The primer activates the M505 time delay fuze, which ignites the propellant after it is fully armed and detonates.
What device holds the ball rotor of the 30 millimeter (mm) M505A3 impact fuze in an unarmed position until it is fired?
Lock ring
Split latch
Safety block
Detonator safety latch
Which component allows the 30 millimeter (mm) armor-piercing round to achieve target penetration?
Fumer charge
Linear shape charge
Munroe effect shape charge
Depleted uranium penetrator
What is the purpose of the 30 millimeter (mm) dummy ammunition?
As ballast
For target practice on small ranges
For use in static displays and award presentations
As familiarization training and mechanical cycling of the gun system
How long does the red tracer composition burn in the 40 millimeter (mm) AAA, target practice tracer (M91) round?
10 seconds
12 seconds
14 seconds
16 seconds
Name the components of a 40 millimeter (mm) round.
Ignition booster, cartridge case, and projectile.
Propellant, cartridge case, and ignition booster
Propellant, cartridge case, ignition booster, and fuze
Primer, cartridge case, propellant charge, projectile, and fuze.
What is the total number of rounds can the MK1 ammunition box hold?
36
24
20
16
What aircraft fires 105 millimeter (mm) ammunition?
B–52
B–1B
KC–10
AC–130
What type of explosive is loaded in the projectile of the 105 millimeter (mm) high-explosive (HE) round?
Comp B.
Comp C.
Cyclonite (RDX).
Pentaerythritol Tetranitrate (PETN).
Approximately how many fragments will the high fragmentation (HF) PGU–45/B projectile produce?
300
1,300
3,300
13,000
What is the factory set height of burst (HOB) for the FMU–160/B fuze to optimize lethality?
15 feet
30 feet
32 feet
42 feet
The 105 millimeter (mm) clearing cartridge was designed to
clean the bore of a 105 mm cannon
prepare the 105 mm cannon for shipping
clear the immediate area around a ground target
clear a projectile lodged in the bore of a 105 mm cannon
What are countermeasure flares designed to do?
Emergency signaling by a downed aircraft
Illuminate emergency landing fields at night
Emergency signaling to rescue aircraft from the ground
Divert enemy aircraft infrared/heat-seeking missiles from friendly aircraft
Which impulse cartridge initiates the MJU–7/B flare?
BBU–35/B
BBU–36/B
BBU–46/B
BBU–47/B
The SD–206 infrared flare (Smokey Devil) provides
less heat than the M206 flare
more heat than the M206 flare
more flexibility due to its smaller size
smoke to simulate a flare for training purposes
Which impulse cartridge does the RR–170 chaff cartridge use?
BBU–45/B
The LUU–2 series aircraft flare produces
500,000 candlepower for an average burn time of three minutes
300,000 candlepower for an average burn time of two minutes
two million candlepower for an average burn time of five minutes
one million candlepower for an average burn time of five minutes
What output does the LUU–5/B target marker produce?
Red light
Green light
White light
Yellow light
What output does the LUU–19 series illumination flare produce?
Visible light
Light in the near-infrared region
In which direction are flares launched from the SUU–25E/A flare dispenser?
Downward
Rearward
Sideward
Forward
What impulse cartridge supplies the gas pressure to launch the flares from the SUU–25E/A dispenser?
ARD 446–1
ARD 863–1
MK2 Mod 0.
MK107 Mod 0
The gas pressure produced by the impulse in an SUU–25 ejects the flare at a speed of approximately
50 feet per second (fps).
60 (fps).
65 (fps).
75 (fps).
What are initiators, found in cartridge-actuated devices (CAD), designed to do?
Supply gas pressure to operate other CADs
Supply gas pressure to remove aircraft canopies
Eject external stores
Eject seats
What are removers, found in cartridge-actuated devices (CAD), designed to do?
Remove obstacles from the ejecting pilot’s path
Remove the aircraft seat from the aircraft
Eject crew members safely
Eject aircraft canopy
What are the two types of impulse cartridges found in propellant-actuated devices (PADS)?
Electric and gas
Explosive and gas
Percussion and electric
Explosive and nonexplosive
What must you do before you handle any impulse cartridge?
Ensure service life is not expired
Ensure shelf life is not expired
Install shorting clips
Ground yourself.
