Set B Vol 2 UREs Flashcards Preview

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Flashcards in Set B Vol 2 UREs Deck (100)
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1

A requirement for military explosives is that raw materials must be

cheap

2

Volatility is the tendency of a substance to produce

vapors.

3

What property of an explosive do we refer to by the word “hygroscopicity?”

Moisture-absorbing property.

4

Upon what factor does the rate of detonation depend?

Degree of confinement and loading density

5

What are the basic components of an explosive train?

Detonator, booster, and a bursting charge.

6

What does an explosive train booster do?

Detonates the main charge

7

How can you achieve an airburst with a general-purpose bomb?

Use a time action high-explosive (HE) train

8

What effect does more damage than the fragmentation effect of a specific bomb?

Blast

9

The penetrating action of a shaped charge is the result of the

shock wave and a jet of dense gas

10

The four factors that control the visibility of pyrotechnics are candlepower, color, weather, and

light.

11

What are the classifications of pyrotechnics?

Illuminants, signals, combinations of signals and illuminants, and simulators.

12

When considering pyrotechnics, two types of effects for signals are

light and smoke.

13

What do the colored bands, letters, or patches on signal munitions indicate?

Color of the signal produced.

14

What pyrotechnic effect is produced by the AN–MK13 signal?

Smoke and flare.

15

When and where is the MK124 Mod 0 signal used?

Day or night, land or sea use.

16

How much light does the M127A1 signal produce?

50,000 candlepower.

17

What is the largest caliber ammunition that we classify as “small arms”?

Caliber .50.

18

What shotgun round is the exception to the gauging principle?

.410.

19

What hazard is involved in using blank ammunition?

The wad can cause injury.

20

What are the components of a typical small-arms cartridge?

Cartridge case, primer, bullet, and propellant

21

What substance is the explosive filler for the M30 practice grenade?

Black powder.

22

How far in front of an M18A1 mine do we consider inside the danger zone?

250 meters

23

How far behind an M18A1 mine should personnel take cover before they fire it?

100 meters.

24

What mortar has a short range and a small explosive charge?

Light

25

What device(s) do we use to detonate high explosives (HE)?

Blasting caps.

26

What device is used to initiate time fuse?

M60 igniter.

27

The M112 demo block is made of what substance?

Composition C–4.

28

The difference between commercial dynamite and military dynamite is that military dynamite does not contain

nitroglycerin

29

In what length is fire wire issued?

500 feet.

30

How do we classify bomb fuzes?

Position, action, and method of arming.