INFANTRY SQUAD LEADER: WEAPONS AND FIRE SUPPORT EXAM LATEST UPDATED

State the key characteristics of the M60E3 machine gun - ANSWER The M60E3 is a belt-fed, gas-operated, air-cooled, automatic weapon that can be fired from pedestal, bipod, or tripod mounts or as a shoulder fired weapon. Weight: 18.5 lbs Maximum range: 3725 M Maximum effective: 1100 M Grazing fire: 600 M Cyclic: 550-600 RPM Rapid: 200 RPM Sustained: 100 RPM State the methods for loading of the M60E3 machine gun. - ANSWER There are two methods to loading the M60E3 either by cover raised or by cover closed State the method for changing the barrel of the M60E3. - ANSWER To change barrels, the gunner pulls the cocking handle to the rear palm up and returns it forward, ensuring that the bolt is to the rear. He then places the safety on safe, raises the barrel lock lever with his right hand, and keeps his hand on the barrel lock lever throughout the change. The team leader removes the barrel and inserts the spare barrel. The gunner lowers the barrel lock lever and places the weapon on fire, and the gun team continues the mission. List the steps in performing immediate action (hot barrel) - ANSWER A barrel is considered hot when 150 rounds or more have been fired in 1 minute. Cartridge WAS ejected: Step 1: Push the cocking handle forward to the locked position and continue to fire. Step 2: If the weapon still fails to fire, pull the cocking handle to the rear observing the ejection port. If a round is ejected, attempt to fire again. If the weapon still fails, follow "subsequent action" Cartridge WAS NOT ejected: Step 1: Place the weapon on safe. Step 2: Keep the weapon pointed down range, into the impact area. Clear the weapon when the barrel is cool (after 15 minutes). Gently push out the round with the cleaning rod. State the runaway gun procedures while in the assault fire position. - ANSWER If the gun is being fired from one of the assault positions, the gunner holds the gun on target until all rounds are expended. No one will attempt to break the belt of ammunition because doing so would pull the gun off target and possibly endanger troops. State the maintenance steps before firing. - ANSWER Inspect the weapon for cleanliness and proper mechanical condition. Remove the barrel and bolt, and check the locking recesses and locking lugs for cleanliness and burrs. Run a dry patch through the bore to remove excess lubrication and possible obstructions. Place a light coat of CLP on the bolt and receiver rails. State the maintenance steps during firing. - ANSWER Maintain a light coat of CLP on moving parts where friction may occur. Change the barrel after firing the rapid rate of fire for two minutes or the sustained rate of fire for 10 minutes. State the maintenance steps after firing. - ANSWER Thoroughly clean the gun for three consecutive work days to remove all powder residue. Inspect the gun for carbon deposits and remove them with brushes and CLP. Wipe these parts clean and apply a light coat of CLP. List the description for the M224, 60-mm mortar. - ANSWER The M224, 60-mm mortar is characterized as a lightweight smooth-bore, muzzle loaded, high-angle-of-fire weapon. It can be fired either by drop firing or trigger in either the conventional mode with bipod or in the handheld mode. The mortar has three main components: cannon assembly M225, bipod assembly M170, and baseplates M7 or M8. List the key characteristics of the ammunition for the M224, 60-mm mortar. - ANSWER Range: HE (M720)..............75-3,500 meters HE (M49A4)..........75-1,800 meters WP (M302A1)........75-1,500 meters ILLUM (M83A3)...75-1,000 meters Maximum Rate of Fire: Rapid: HE (M720) 30 rpm/4 minutes HE (M49A4) 18 rpm/4 minutes Sustained: HE (M720) 20 rpm HE (M49A4) 8 rpm List the service ammunition for the M224, 60-mm mortar. - ANSWER M720 Series Cartridge Classification: High Explosive Comp. B Identification: Olive Drab w/Yellow markings Fuzes: M734 Multi-option fuze Weight: Complete round 3.25 lbs M49A4 Series Cartridge Classification: High Explosive Comp. B Identification: Olive Drab w/Yellow markings Fuzes: M525A1 Point Detonating Fuze Weight: 3.25 lbs M302A1 Series Cartridge Classification: Smoke, WP Identification: Old manufacture- Gray w/Yellow band and yellow markings New manufacture- Light green w/ Yellow band and light red markings Fuzes: M527 Series M83A3 Series Cartridge Classification: Illuminating Identification: White and Black markings Fuzes: Time. M65 Series List the types of fuzes for the M224, 60-mm mortar. - ANSWER Multioption Fuze, M734 Point Detonating Fuze, PD, M935 Impact Fuzes, M52A1 and M525B1 Fixed-time Fuze, M65A1 List the key characteristics of the MK 153 SMAW - ANSWER Weight: Weapon ready to fire: 29.01 lbs Length: Weapon ready to fire: 53.1 inches Ammunition: Caliber: SMAW 83.3 mm Spotting Rifle 9 mm Type: Dual Mode Range: Maximum....400 meters Optimum.....250 meters Minimum........50 meters Penetration capabilities: Brick/ Concrete.......12 in/8 in Sandbag......................7 ft Steel/metal................1 in Safety Zones: Danger Area.............30 meters Caution Area............60 meters List the steps in performing immediate action for the MK 153 SMAW - ANSWER Spotting Rifle: (1) Keep the weapon pointing down range, weapon on "SAFE". Hold the weapon on target for 15 seconds. (2) Eject the round by pulling the cocking lever to the rear and chamber a new round. Ensure that the bolt is fully forward in the ready-to-fire position. (3) Place the weapon on "FIRE" and continue with target engagement. Launcher: (1) Hold the weapon on target for an additional 15 seconds to ensure that you do not have a delayed firing. (2) Release the trigger and launch lever. Place the weapon on SAFE. (3) Reset the charging lever to "CHARGE" position. (4) Place the weapon on "FIRE." Re-engage the target and attempt to fire the rocket again. List the maintenance steps of the MK 153 SMAW - ANSWER (1) Clean the telescopic sight using a mild detergent and water on the extractor surfaces and ethyl alcohol and lens tissue on the lenses. (2) Clean the exterior of the launcher using mild detergent and water. Care must be taken not to immerse the firing mechanism in water. The electrical wire contacts are potted and waterproof but the triggering assemblies are not. (3) Clean the interior of the launcher using CLP. The entire bore is cleaned with CLP and wiped dry. (4) Field strip the spotting rifle before cleaning; use CLP mixture to clean the interior and exterior or the spotting rifle components. List the methods of employment of the weapons platoon. - ANSWER General Support Direct Support Attachment State the mission of the machine gun section in the offense. - ANSWER The mission of machineguns in the offense is to support by fire the advance of rifle platoons. These fires will fall into one or more of four general classifications: Close Support fires Long-range fires Flank Protection fires Protection Against Counterattack State the mission of the assault section in the offense. - ANSWER The mission of the assault section in the attack is to provide close in anti-tank protection and assault support (including rocket and assault demolition) to the rifle company. State the mission of the mortar section. - ANSWER The mission of the 60mm mortar section in the attack is to provide supporting high-angle fires which are rapidly responsive to the rifle company commander's requirements. State the mission of the machinegun section in the defense. - ANSWER To provide close and continuous fire support for the frontline platoons. To help ensure a continuous volume of fire and to provide an additional degree of reliability, it is desirable to employ the machineguns by squad. Consistent with the company commander's ability to observe and control the fires of the machineguns, general support is the preferred method of employment. The machinegun section provides the preponderance of the company's final protective fires. State the mission of the assault section in the defense. - ANSWER The mission of the assault section section in the defense is to provide close-in antitank protection for the rifle company and, in the absence of an armored threat, provide close range fires support. State the mission of the 60mm mortar section in the defense. - ANSWER The mission of the 60 mm mortar section in the defense is to provide close and continuous fire support for the rifle company during various stages of enemy attack. State the key characteristics of the M2 .50 caliber machinegun - ANSWER Weight of gun complete, on tripod mount, M3: 128 lbs Ranges: Maximum- 6,800 meters Maximum effective- 1,830 meters Grazing fire- 1,000 meters Rates of fire: Rapid- 40 rounds or more per minute Sustained- 40 rounds or less per minute