FMF - Fleet Marine Force Infantry Weapons Fundamentals Questions and Answers

Question 1

Which of the following BEST describes the primary role of the M27 Infantry Automatic Rifle (IAR) within a Marine Corps fire team?

Accepted Answer

To provide accurate, suppressive fire while maintaining maneuverability with the fire team.

Answer

To provide a high volume of suppressive fire similar to the M249 SAW.

Answer

To serve as a precision marksman rifle for engaging targets at extreme ranges.

Answer

To function as the primary breaching weapon for close-quarters combat.

Question 2

A Marine is firing an M240B machine gun. The gun fires a long burst and then stops. The barrel is glowing red and emitting heat waves. What is the MOST critical immediate action the Marine should take?

Accepted Answer

Wait approximately 15 minutes, keep the weapon pointed downrange, and then conduct a barrel change.

Answer

Immediately clear the weapon by pulling the charging handle to the rear.

Answer

Wait for the barrel to cool completely before attempting any action.

Answer

Pour water over the barrel to cool it down quickly.

Question 3

What are the four universal firearm safety rules that are fundamental to all Marine Corps weapons handling?

Accepted Answer

1. Treat every weapon as if it were loaded. 2. Never point a weapon at anything you do not intend to shoot. 3. Keep your finger straight and off the trigger until you are ready to fire. 4. Keep the weapon on safe until you are ready to fire.

Answer

1. Keep weapon on safe. 2. Treat every weapon as if it were loaded. 3. Never point your weapon at an enemy until ordered. 4. Keep your finger off the trigger.

Answer

1. Treat, Never, Keep, Keep. 2. Always assume a weapon is unloaded. 3. Point the weapon only at approved targets. 4. Keep your finger on the trigger for a faster reaction.

Answer

1. Always keep the weapon pointed downrange. 2. Never load a weapon until you are on the firing line. 3. Keep your finger on the trigger guard. 4. Only handle your assigned weapon.

Question 4

During a live-fire range, a Marine's M4 Carbine fails to fire. The bolt is forward, and the ejection port cover is closed. According to the immediate action drill, what is the first step the Marine should take?

Accepted Answer

Slap upwards on the bottom of the magazine.

Answer

Observe the chamber for a double feed.

Answer

Pull the charging handle to the rear.

Answer

Place the weapon on 'SAFE'.

Question 5

Which characteristic correctly describes the M240B medium machine gun?

Accepted Answer

Gas-operated, air-cooled, and belt-fed.

Answer

Fires from a closed-bolt position.

Answer

Magazine-fed with a 30-round capacity.

Answer

Chambered in 5.56x45mm NATO.

Question 6

A fire team is maneuvering through an urban environment. The fire team leader needs to provide suppressive fire on a second-story window 200 meters away to cover the team's movement across a street. Which weapon system is best suited for this task with the highest degree of precision?

Accepted Answer

M27 IAR with Squad Day Optic (SDO)

Answer

M320 Grenade Launcher

Answer

M4 Carbine with iron sights

Answer

M240B Machine Gun