| Xavier University Army ROTC
Study Guide
Military Weapons (Hand Grenades, Mines,
AP Mine, Claymore, M18A1, Launcher, 84mm, M136 HEAT)
Hand Grenades
References:
Field Manual 23-30
1. What is a hand grenade?
A hand grenade is a small, hand-held, short
range, indirect fire weapon that is designed for projection
to a target by means of throwing.
2. In what five (5) areas can the hand grenade
assist the individual soldier in the accomplishment of the
mission?
- Producing casualties
- Signaling
- Screening
- Producing incendiary effects
- Riot control
3. What are the three (3) characteristics of
all hand grenades?
- Employment range is short
- Small effective casualty radius
- Delay element permits safe throwing
4. What are the four (4) general types of hand
grenades?
- Fragmentation - time delay and impact M68;
grenades to inflect casualties
- Chemical/Smoke - canister type grenades used
for signaling, screening, or CBR
- Riot Control - bursting type grenades or
burning type grenades used for control of unruly crowds
- Special Purpose - grenades used for specific
results: Incendiar: Used to destroy by heat; Concussion:
Used for destruction by shock wave; Practice: Used for training
5. What types of grenades should every soldier
be able to identify (according to the soldiers manual of common
tasks)?
- M67 Fragmentation
- M18 Colored Smoke
- M34 WP Smoke
- AN-M8 HC Smoke
- AN-M14 TH3 Incendiary
- ABC-M2A2 CS Riot Control
6. What are the components of a hand grenade?
- Body
- Filler
- Fuze
- Safety Clip
7. What is the effective casualty-producing
radius of the M67 hand grenade?
15 meters.
Mines/Antipersonnel Mine M18A1 (Claymore)
References:
Field Manual 20-32, Field Manual 23-23)
1. What is a land mine?
A land mine is a weapon, an explosive or other
substance (normally encased) used to kill, wound or somehow
harm personnel, or to damage or destroy vehicles, boats, or
aircraft. Alone they are a weak weapon, with men and other
weapons, they are a strong defense.
2. What is meant by breaching a mine field?
- Breaching a mine field is the use of any
means to make a passage through the mined area
- An Assault Mine Field Breach is a combat
breach of an enemy mine field covered by enemy fire
3. What is meant by countermine?
Countermine is the operations, tactics, and
techniques used to find, avoid, or neutralize enemy mines,
and the use of resources to keep the enemy from using mines
against our forces.
4. How can a mine be detonated?
- By action of the victim
- By passage of time
- By controlled means
- By preset timers
5. What is mine warfare?
Mine warfare is the strategic or tactical use
of mines and their countermeasures.
6. What are the five (5) parts of a mine?
- Fuse
- Detonator
- Booster or Activator (with some exceptions)
- Main Charge
- Body or Case
8. What are the four (4) main types of fuses
used in mines?
- Mechanical: A spring drives a striker against
a percussion cap which fires the detonator
- Chemical: A small container of acid is broken
by the initiating action; the acid dissolves a restraining
wire freeing the striker to fire the detonator
- Friction: The initiating action that ignites
substances inside the fuse by friction; the flame fires
the detonator
- Electrical: The initiating action closes
an electrical circuit which detonates an electrical detonator
9. Name four (4) types of mines.
Service, Phony, Training, and Improvised.
10. What are the colors of mines and what do
they indicate?
- Olive Drab: High Explosives (HE)
- Gray: Chemical Mines (sometimes with a colored
banded to indicate agent)
- Light Red: Incendiary burst
- Blue: Practice mines
- Blue with the word INERT: Inert mines
11. What is the Claymore mine effective against?
Massed infantry attacks and light vehicles.
12. What is the optimum effective range of the
Claymore mine?
50 meters.
13. What are the components of the Claymore
mine?
- M40 test set
- M4 electric blasting cap with wire
- M57 firing device
- M7 bandoleer
- M18A1 claymore mine
- Insulation tape
- Instruction sheet
14. How far from the detonation is the Claymore
mine considered dangerous?
250 meters.
Launcher and Cartridge, 84mm, M136 (AT4)
HEAT
Reference:
Field Manual 23-25
1. What is the AT4?
It is a 84mm, light weight, single shot, man-portable,
self contained anti-armor weapon fired from the right shoulder
only.
2. What is the maximum range?
2,100 meters.
3. What is the maximum effective range?
300 meters.
4. What is the minimum target engagement range?
30 meters.
5. How many pre-fire checks are there and what
are they?
There are 10 pre-fire checks:
- Ensure transport safety pin is in place/fully
inserted
- Cocking lever is in SAFE condition and folded
down
- Fire through muzzle cover is intact
- Launcher has a black color code band
- Sights function properly
- Red safety catch does not move when depressed
- Rear seal is not cracked or damaged
- Shoulder strap is not broken or damaged
- Carrying sling is not frayed and is firmly
attached
- Red trigger button is not missing, broken
or damaged
6. How large and what does the back-blast area
consist of?
The black-blast area is 65 meters in a 90 degree
fan behind the weapon.
- Zone A ( 5 meters) combat
- Zone B (60 Meters) training
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