2w051b V2
2W051B Vol. 2 URE Questions
- 1.
What is a requirement for military explosives ?
- A.
Raw materials must be cheap
- B.
Raw materials must be nonhygroscopic
- C.
Raw materials must be common to America
- D.
Raw materials must be vital to the war effort
Correct Answer
A. Raw materials must be cheap -
- 2.
Volatility is the tendency of a substance to produce
- A.
Pressure.
- B.
Energy.
- C.
Vapors.
- D.
Heat.
Correct Answer
C. Vapors. -
- 3.
The rate of transformation for high explosives is between
- A.
3,200 and 25,000 feet per second.
- B.
3,200 and 28,000 feet per second.
- C.
3,200 and 31,000 feet per second.
- D.
3,200 and 32,000 feet per second.
Correct Answer
B. 3,200 and 28,000 feet per second. -
- 4.
The tendency of a substance to burn with a rapid and sparkling combustion is called
- A.
Detonation.
- B.
Disposition.
- C.
Deflagration.
- D.
Decomposition.
Correct Answer
C. Deflagration. -
- 5.
What are the detonation products?
- A.
Deflagration and spontaneous ignition.
- B.
Spontaneous ignition, heat, and light.
- C.
Heat, light, gases, and pressure.
- D.
Volatility and deflagration.
Correct Answer
C. Heat, light, gases, and pressure. -
- 6.
How do we classify explosive train primers?
- A.
By the size of the primer.
- B.
According to their location.
- C.
By the way they are initiated.
- D.
According to their functioning
Correct Answer
C. By the way they are initiated. -
- 7.
How can you increase the penetration effect of a shaped charge?
- A.
Decrease standoff distance.
- B.
Increase standoff distance.
- C.
Decrease explosive charge.
- D.
Increase explosive charge.
Correct Answer
B. Increase standoff distance. -
- 8.
For what purpose do we use a shaped charge?
- A.
Bring down walls and collapse roofs.
- B.
No practical application in the munitions field.
- C.
Ignite rocket motors equipped with electric squibs.
- D.
To produce an explosive penetration of a solid object.
Correct Answer
D. To produce an explosive penetration of a solid object. -
- 9.
The four factors that control the visibility of pyrotechnics are candlepower, color, weather, and
- A.
Light.
- B.
Altitude.
- C.
Humidity.
- D.
Chemical composition
Correct Answer
A. Light. -
- 10.
Name two types of effects for signals.
- A.
Fire and flash.
- B.
Heat and flash.
- C.
Smoke and heat.
- D.
Light and smoke.
Correct Answer
D. Light and smoke. -
- 11.
What pyrotechnic effect is produced by the AN–MK13 signal?
- A.
Noise only.
- B.
Flare and noise.
- C.
Smoke and flare.
- D.
Smoke and noise.
Correct Answer
C. Smoke and flare. -
- 12.
How is the A/P25S–5A distress signal kit ignited?
- A.
Electric igniter.
- B.
Percussion primer.
- C.
Electric stab firing pin
- D.
Nonelectric stab firing pin.
Correct Answer
B. Percussion primer. -
- 13.
How much light does the M127A1 signal produce?
- A.
50,000 candlepower.
- B.
100,000 candlepower.
- C.
1,000,000 candlepower.
- D.
2,000,000 candlepower.
Correct Answer
A. 50,000 candlepower. -
- 14.
What effects do the booby-trap simulators provide?
- A.
Flash, smoke, and a whistling sound.
- B.
Flash, illumination, and a whistling sound.
- C.
Flash, illumination, and an explosive sound.
- D.
Smoke, illumination, and an explosive sound
Correct Answer
B. Flash, illumination, and a whistling sound. -
- 15.
What is the largest caliber ammunition that we classify as “small arms”?
- A.
Caliber .38.
- B.
Caliber .50.
- C.
5.56 millimeter.
- D.
7.62 millimeter.
Correct Answer
B. Caliber .50. -
- 16.
What shotgun round is the exception to the gauging principle?
- A.
10.
- B.
12.
- C.
28.
- D.
410.
Correct Answer
D. 410. -
- 17.
What hazard is involved in using blank ammunition?
- A.
Ejection of the primer.
- B.
The wad can cause injury
- C.
There is no significant hazard.
- D.
Fragmentation of the projectile.
Correct Answer
B. The wad can cause injury -
- 18.
What are the components of a typical small-arms cartridge?
- A.
Cartridge case, primer, bullet, and propellant.
- B.
Cartridge case, primer, bullet, and detonator.
- C.
Cartridge case, shot pellets, and propellant.
- D.
Cartridge case, propellant, and tracer.
Correct Answer
A. Cartridge case, primer, bullet, and propellant. -
- 19.
Name three classifications of Air Force grenades.
- A.
Combat, practice, and training.
- B.
Dummy, training, and service.
- C.
Service, practice, and training.
- D.
Chemical, practice, and service.
Correct Answer
C. Service, practice, and training. -
- 20.
What type of explosive filler does an M26 fragmentation grenade have?
- A.
Composition B.
- B.
Composition C.
- C.
Black powder.
- D.
Cyclonite (RDX).
Correct Answer
A. Composition B. -
- 21.
What substance is the explosive filler for the M30 practice grenade?
- A.
Inert powder.
- B.
Black powder.
- C.
Composition B.
- D.
White phosphorus.
Correct Answer
B. Black powder. -
- 22.
Which chemical filler is used in the AN–M8 smoke grenade?
- A.
Chloroacetophenone.
- B.
Hexachloroethane
- C.
White phosphorus.
- D.
Composition B.
Correct Answer
B. Hexachloroethane -
- 23.
Which mine do we commonly call the “claymore”?
- A.
M14.
- B.
M18A1
- C.
M27A1
- D.
M28A1.
Correct Answer
B. M18A1 -
- 24.
How far in front of an M18A1 mine do we consider inside the danger zone?
- A.
50 meters.
- B.
100 meters.
- C.
250 meters.
- D.
300 meters.
Correct Answer
C. 250 meters. -
- 25.
How much force is required to function the M14 anti-personnel mine?
- A.
5 to 10 pounds.
- B.
10 to 15 pounds.
- C.
20 to 30 pounds.
- D.
20 to 35 pounds.
Correct Answer
D. 20 to 35 pounds. -
- 26.
What mortar can be broken down into several smaller loads for easier carrying?
- A.
Short.
- B.
Light.
- C.
Heavy.
- D.
Medium.
Correct Answer
D. Medium. -
- 27.
What color is the most common for military safety fuze?
- A.
Red.
- B.
Green.
- C.
Purple.
- D.
Orange.
Correct Answer
B. Green. -
- 28.
What device is used to initiate time fuse?
- A.
M60 Igniter.
- B.
Firing Wire.
- C.
Galvanometer.
- D.
Blasting machine.
Correct Answer
A. M60 Igniter. -
- 29.
What substance is the M112 demo block made of?
- A.
Ammonia.
- B.
Black powder.
- C.
Composition C–4.
- D.
Nitroglycerin.
Correct Answer
C. Composition C–4. -
- 30.
The main types of fuze actions are impact, time, and
- A.
Electrical.
- B.
Hydraulic.
- C.
Proximity.
- D.
Inertia.
Correct Answer
C. Proximity. -
- 31.
Where is a proximity fuze placed on the bomb?
- A.
Nose.
- B.
Tail.
- C.
Nose and tail.
- D.
Between the lugs.
Correct Answer
A. Nose. -
- 32.
In an electronically timed fuze, what component replaces the arming vanes used in mechanically timed fuzes?
- A.
Battery-firing device.
- B.
Arming lanyard assembly.
- C.
Electric charging assembly.
- D.
Electronically timed sensor.
Correct Answer
C. Electric charging assembly. -
- 33.
The design of which safety feature is to prevent movement of the arming heads, arming stems, and strikers while the fuze is being handled?
- A.
Seal wires.
- B.
Cotter pins.
- C.
Safety blocks.
- D.
“Detonator safe” feature.
Correct Answer
B. Cotter pins. -
- 34.
How do you set the firing delay times in a mechanically timed M904 nose fuze?
- A.
Changing the delay element.
- B.
By rotating the timing lock.
- C.
By adjusting the calibrated dial.
- D.
The firing delay time is fixed and cannot be changed.
Correct Answer
A. Changing the delay element. -
- 35.
What adapter booster is used with the M904 fuze?
- A.
T44.
- B.
T45.
- C.
T46.
- D.
FZU–2/B.
Correct Answer
B. T45. -
- 36.
Where in a bomb body is the M905 fuze installed?
- A.
Either the nose or the tail.
- B.
The nose fuze well.
- C.
The tail fuze well.
- D.
Between the lugs.
Correct Answer
C. The tail fuze well. -
- 37.
The FMU–54-series tail fuzes are used in
- A.
Laser-guided bomb series.
- B.
BLU–109/B-series guided bombs.
- C.
MK80- and M-series general-purpose bombs with conical fins.
- D.
MK80-series general-purpose bombs with an air inflatable retarder.
Correct Answer
D. MK80-series general-purpose bombs with an air inflatable retarder. -
- 38.
With electrical fuzes, what device is used in place of arming wire?
- A.
Bungee cord.
- B.
Battery-firing device.
- C.
Linear-shaped charge.
- D.
Target-detecting device.
Correct Answer
B. Battery-firing device. -
- 39.
How can you tell when an FMU–124A/B fuze is armed?
- A.
You see only the green background through the window.
- B.
The safety pin is removed and the release shaft is extended.
- C.
The safety pin is removed and the release shaft is detracted.
- D.
You see a white “S” on a green background through the window.
Correct Answer
B. The safety pin is removed and the release shaft is extended. -
- 40.
What setting causes the FMU–139A/B fuze to abort and not arm?
- A.
“LOW-DRAG ARM TIME” knob set to the “X” position.
- B.
“HIGH-DRAG ARM TIME” knob set to the “X” position.
- C.
“LOW-DRAG ARM TIME” knob set to other than the “X” position.
- D.
“HIGH-DRAG ARM TIME” knob set to other than the “X” position.
Correct Answer
A. “LOW-DRAG ARM TIME” knob set to the “X” position. -
- 41.
What component provides the electrical power needed to operate the FMU–139A/B fuze?
- A.
FZU–39/B sensor.
- B.
FZU–48/B initiator.
- C.
Battery-firing device.
- D.
MK32 Mod 1 arming device.
Correct Answer
B. FZU–48/B initiator. -
- 42.
What provides the electrical power needed to operate the FMU–143 series fuze?
- A.
FZU–39/B sensor.
- B.
FZU–48/B initiator.
- C.
FZU–55 series fuze initiator.
- D.
FZU–32 series fuze initiator.
Correct Answer
D. FZU–32 series fuze initiator. -
- 43.
Where are proximity sensors/fuzes installed on a bomb?
- A.
Nose.
- B.
Tail.
- C.
Nose and tail.
- D.
Between the lugs.
Correct Answer
A. Nose. -
- 44.
Which sensor is a radio-frequency radar ranging system used with the suspension utility unit (SUU)–64/B, SUU–65/B, and SUU–66/B dispensers?
- A.
FZU–39/B.
- B.
FMU–56/B.
- C.
FMU–110/B.
- D.
FMU–124/B.
Correct Answer
A. FZU–39/B. -
- 45.
What does HOF stand for on the FZU–39/B proximity sensor?
- A.
Hour of flight.
- B.
Hour of function.
- C.
Height of function.
- D.
Height of fragmentation.
Correct Answer
C. Height of function. -
- 46.
Which proximity fuze has a height-of-burst (HOB) setting built into the fuze at the time of manufacture?
- A.
FZU–39/B.
- B.
FMU–56/B.
- C.
FMU–110/B.
- D.
FMU–113/B.
Correct Answer
D. FMU–113/B. -
- 47.
What component is used to adapt a nose fuze for an M-series bomb?
- A.
Fuze adapter.
- B.
Bomb adapter.
- C.
Adapter booster.
- D.
Adapter burster.
Correct Answer
C. Adapter booster. -
- 48.
Which fin provides a high-drag, low-altitude bombing capability for the M117 bomb?
- A.
BSU–50/B.
- B.
BSU–49/B.
- C.
BSU–93/B.
- D.
MAU–103.
Correct Answer
C. BSU–93/B. -
- 49.
What air inflatable retarder (AIR) is used on the MK84 bomb?
- A.
BSU–49/B.
- B.
BSU–50/B.
- C.
BSU–92.
- D.
BSU–93/B.
Correct Answer
B. BSU–50/B. -
- 50.
Which bomb is not classified as a penetrator?
- A.
BLU–113.
- B.
BLU–118.
- C.
BLU–122.
- D.
BLU–126.
Correct Answer
B. BLU–118. -
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Dec 06, 2013Quiz Edited by
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Oct 28, 2013Quiz Created by
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