TBS Exam 3 Questions and Graded Answers.
identify characteristics of the M240B medium MG - A - Air-Cooled
B - Belt-fed
C - Crew-served
F - Fully Automatic Weapon
O - Open bolt weapon system
G - Gas operated
Bipod, Tripod, and Vehicle Mounted Weapon
identify M240 medium MG nomenclature - Components of a M240 medium MG:
Barrel assembly
Butt stock and buffer assembly
Driving spring rod assembly
Bold and operating rod assembly
Trigger-housing assembly
Cover assembly
Feed tray
Receiver assembly
identify M240 medium MG ammo - (M62) Tracer: orange/red tip used for observing fires,
incendiary effects, signaling, and
marking
(M61) Armor Piercing: black tip used for light armored targets
(M80) Ball: plain tip, full metal jacketed bullet used for field firing, personnel, and light
material vehicles
(M82) Blank: doubled tapered neck with no bullet used for simulated fire
(M172) Dummy: plain, fluted cartridge, with no primer or propellant used for training
(loading/unloading) and gun drills
, Relationship Use of Fires Tactical Control
Admin & Logistics
Control
General Support PC PC PC
Direct Support SL MG SL PC
Attached
Supported unit leader (it doesn't make sense to attach a MG Sqd
to a rifle Sqd)
identify MG capabilities and limitations - Max Range - 3725m, Max Eff. Point - 800m,
Max Eff. Area - 1800m, Grazing Fire - 600m,
Tracer Burnout - 900m
Cycle of Operations:
Feeding/Chambering/Locking/Firing/Unlocking/Extracting/Ejecting/Cocking
define rates of fire for the M240 medium MG - Sustained: 100 RPM (6-8 rds/burst, 4-5
sec pause, barrel change every 10 minutes)
Rapid: 200 RPM (10-12rds/burse, 2-3 sec pause, barrel change every 2 minutes)
Cyclic: 650 RPM (continuous burst, barrel change every 1 minute)
8 Principles of MG Employment: - P - Pairs: employing two weapon systems IOT
duplicate fires to ensure continuous fire
support even if one gun goes down; "talking guns": constant fires on the target and
uninterrupted fires during IA drills or if a gun goes down
I - Interlocking Fires: reinforce and double the firepower employed across the units frontage;
no area goes uncovered
C - Coordination of Fires: the use of appropriate weapons to fire on appropriate targets;
max effectiveness of all systems to conserve ammo and mask MG position until their fires
are required
identify characteristics of the M240B medium MG - A - Air-Cooled
B - Belt-fed
C - Crew-served
F - Fully Automatic Weapon
O - Open bolt weapon system
G - Gas operated
Bipod, Tripod, and Vehicle Mounted Weapon
identify M240 medium MG nomenclature - Components of a M240 medium MG:
Barrel assembly
Butt stock and buffer assembly
Driving spring rod assembly
Bold and operating rod assembly
Trigger-housing assembly
Cover assembly
Feed tray
Receiver assembly
identify M240 medium MG ammo - (M62) Tracer: orange/red tip used for observing fires,
incendiary effects, signaling, and
marking
(M61) Armor Piercing: black tip used for light armored targets
(M80) Ball: plain tip, full metal jacketed bullet used for field firing, personnel, and light
material vehicles
(M82) Blank: doubled tapered neck with no bullet used for simulated fire
(M172) Dummy: plain, fluted cartridge, with no primer or propellant used for training
(loading/unloading) and gun drills
, Relationship Use of Fires Tactical Control
Admin & Logistics
Control
General Support PC PC PC
Direct Support SL MG SL PC
Attached
Supported unit leader (it doesn't make sense to attach a MG Sqd
to a rifle Sqd)
identify MG capabilities and limitations - Max Range - 3725m, Max Eff. Point - 800m,
Max Eff. Area - 1800m, Grazing Fire - 600m,
Tracer Burnout - 900m
Cycle of Operations:
Feeding/Chambering/Locking/Firing/Unlocking/Extracting/Ejecting/Cocking
define rates of fire for the M240 medium MG - Sustained: 100 RPM (6-8 rds/burst, 4-5
sec pause, barrel change every 10 minutes)
Rapid: 200 RPM (10-12rds/burse, 2-3 sec pause, barrel change every 2 minutes)
Cyclic: 650 RPM (continuous burst, barrel change every 1 minute)
8 Principles of MG Employment: - P - Pairs: employing two weapon systems IOT
duplicate fires to ensure continuous fire
support even if one gun goes down; "talking guns": constant fires on the target and
uninterrupted fires during IA drills or if a gun goes down
I - Interlocking Fires: reinforce and double the firepower employed across the units frontage;
no area goes uncovered
C - Coordination of Fires: the use of appropriate weapons to fire on appropriate targets;
max effectiveness of all systems to conserve ammo and mask MG position until their fires
are required
