SMA Gun Block Practice Test

These questions are part of the practice quiz. Start practicing

• The portion of the projectile below the rotating band, which can be squared or boat-tailed, is called the
• What is the typical sequence for clearing a firearm after firing?
• Which ammunition type combines armor piercing, incendiary, and tracer capabilities?
• This holds the firing pin or bolt back until the trigger is pulled.
• Which water recovery method is described as the fastest?
• Which of the following is NOT one of the steps in the Kill Chain as described (identify the target, dispatch forces, attack, destroy)?
• Which term describes a delay between trigger pull and discharge?
• Which term describes inadvertent firing from a hot barrel or chamber?
• What is the measurement representing what aspect of a round?
• Why is hearing protection mandatory on the range?
• What is zeroing and why is it important?
• When a range command stops live-fire, what is the correct action?
• Which bolt position has already chambered the round prior to pulling the trigger?
• What should you do if you observe an unsafe condition on the range?
• Which items constitute Personal Protective Equipment (PPE) for in-flight and weapons employment to protect against hazards?
• Which system places the weapon in the recoiled position during pressurization or emergency procedures?
• Which firearm component disengages to release the firing pin when the trigger is pulled?
• What is the difference between factory ammunition and handloads?
• The Breech Block contains which internal components?
• Which weapon is mounted on the tail of the CV-22 to provide a flexible field of fire?
• Which sub-assembly sends recoil information to the mission computer for the 105mm if recoil exceeds 49 inches?
• What should you do to maintain range safety at end of day?
• During dry-fire practice, when should it be performed?
• Which buoyant device used in rescue operations is also called Rescue Strop and Survivor Sling?
• What does caliber refer to?
• What device is described as being constructed of wire mesh and lightweight steel or titanium tubing to hold a survivor immobile in a face-up supine position?
• Why is bore cleaning important?
• What are the advantages and disadvantages of tracer rounds?
• What is the general guideline for cleaning frequency?
• Which principle requires parties to direct combat operations against enemy combatants and legitimate military objectives, while protecting non-combatants such as religious and medical personnel or facilities?
• What weapon is described as air-cooled, chain driven, belt fed, powered by a 1 horsepower 24v DC motor; recoil ~0.3 inch; CAS?
• What is the difference between centerfire and rimfire ammunition?
• Which component is described as showing the actual gun position by providing angular measurements to the Gun Control Panel?
• What powers the GAU-23 described?
• Which item is described as a foldable, pocket-sized multi-tool used for field repairs, including pliers and screwdrivers?
• Which assembly handles feeding rounds onto the bolt face and moving spent cases to the ejection chute?
• Which are the rates of fire for the M240? (Setting 1, 2, and 3 respectively)
• What is the cut-down rear portion of a 105mm casing called that seals the 105mm breech during pressurization?
• What is the bore and why is cleaning it important?
• Which weapon features six revolving barrels, is externally mounted, fires 7.62mm NATO ammunition, and is not a standalone weapon system?
• How should you demonstrate to another person that a firearm is unloaded before handing over?
• Which statement best describes how to transport when ammunition is present?
• What is the max rate of fire for the M102 (105mm)?
• Which component is identified as Rotor Assembly (GAU-23) in the GAU-23 subassembly?
• Which ammunition type is commonly used for marksmanship training?
• Which weapon is described as not being a standalone weapon system due to its multi-barrel design?
• What is the purpose of zeroing?
• Which sequence correctly describes the stages of a semiautomatic firearm firing cycle?
• What specialized tool is used for the 30mm, featuring an open end and a closed end to manipulate the 30mm bolt or engage the 30mm feeder assembly?
• Which statement best describes the purpose of the range safety rules?
• The curved portion of a projectile between the fuze and the bourrelet is called the
• Which sequence correctly describes unloading a pistol before handing it to another person?
• Which assembly sits on top of the recoil cylinder and faces the buffer striker plate, with two adjustable springs?
• Which component acts as the safing device for the GAU-2/C and is attached to the gun housing assembly by two quick-release pins?
• Which description best reflects a basic stance for stability?
• How do you define negligent discharge?
• In military targeting, what is the process called that identifies a target and organizes a sequence of actions to neutralize it, following four steps: identify the target, dispatch forces to the target, attack the target, destroy the target?
• What is the concept of safe direction when handling a firearm?
• How many angular measurement devices does the 105mm gun have for redundancy?
• What materials comprise the Stokes Litter?
• What personal protective equipment should be used on the range?
• What is the fire rate, full and automatic, of the GAU-23 (30mm)?
• Packages the bullet, gunpowder and primer into a single case made to fit the chamber of a barrel. Seals the firing chamber in all directions except down the barrel.
• What are basic transport precautions for firearms?
• What is the name of the hemp rope described as interwoven, approximately two inches in diameter with an aircraft hookup point and lengths typically between 60 and 120 feet?
• Which sub-assembly of the M102 (105mm) contains oil that passes between the recoil cylinder and the recuperator cylinder through connections in the second yoke?
• Which item is explicitly classified as a Prohibited Item due to injury risk when handling a weapon system?
• What should you do when handing a firearm to another person?
• Which component is an electromagnet that converts electrical impulses into the mechanical force necessary to fire a weapon?
• What is a stovepipe malfunction?
• What is a common hazard indicator on the range related to handling?
• How can recoil affect sight picture and what mitigations help?
• Which statement best describes when to perform a function check?
• What is a backstop and why is it essential on a range?
• Which ammunition type uses a tungsten core to pierce light armor?
• Which weapon has tracer burnout at 1,500 meters and a maximum effective range of 3,000 meters?
• What is the purpose of a function check?
• Which home storage practice is considered safe?
• Which step occurs immediately after Charging in the basic cycle?
• Which component provides muzzle blast suppression to protect the left-wing trailing-edge structure and flaps?
• What is the role of the firearm safety mechanism?
• What is the M102 (105mm) maximum rate of fire?
• What is the name of the wrench with an adjustable open end used to remove or install nuts when the exact size wrench or socket is unavailable?
• What are the firing rates for the GAU-18A (.50 caliber)?
• Which provides a visual indication of the bolt position during the firing cycle?
• Which sensor senses when the gun is in the battery position and ready to fire?
• Which M102 (105mm) assembly houses the round and directs the projectile when fired, and has an externally threaded muzzle to screw into the blast diffuser?
• Which assembly controls the firing of the M240?
• Which term describes a failure to eject where the spent casing remains in the ejection port?
• What is range etiquette?
• Which statement is a fundamental gun safety rule?
• What are the major forms of malfunctions?
• During the trigger pull, what should you maintain to help accuracy?
• What does muzzle discipline mean?
• What should you do if you suspect a barrel obstruction?
• A weapon fired by striking the primer is known as what?
• Which is a type of explosive train that leads to detonation of a propellant charge?
• If the M240 is set to setting 2, what is the rounds per minute?
• Firing mode where loading a new round is automatic, but each round requires individual trigger-pull.
• This tool is used for the rapid removal of nuts and bolts. Incorporates a selection lever to determine the direction of the drive. Utilizes either flexible or straight heads.
• What is the term for the sealed rear portion of a 105mm casing used to seal the breech during pressurization?
• Which term refers to an automatic weapon that continues firing after the trigger is released?
• What aerodynamic forces can greatly affect the ballistics of both rotary and fixed wing aircraft armaments?
• Which of the following best describes a delay between trigger pull and firing?
• Which step occurs immediately after Extracting in the basic cycle?
• In a stable stance, what is the function of the support hand?
• Which mechanism prevents rounds from feeding through both feed paths at once?
• Which two checks verify a firearm is unloaded before handling?
• What is trigger control?
• The Griffin missile is deployed through a Common Launch Tube mounted on the ramp of which aircraft?
• What is defined as any object projected through the air by application of force, designed for maximum stability and minimum air resistance?
• Which practice best demonstrates safe trigger discipline on the range?
• Which statement best describes an advantage of the M240 (7.62mm)?
• What is the pocket-sized quick reference guide for requesting fire support in accordance with approved joint tactics, techniques, and procedures?
• Why is maintaining a clean bore important for accuracy?
• Mechanical or electrical detonating device for setting off the bursting charge of a projectile?
• What is the round metal sleeve with a square opening used to grip bolt heads called?
• What are the functions of the extractor and ejector?
• Which component is the spring-loaded metal pin that strikes the primer of the round, causing the round to fire?
• What is the primary purpose of the fundamental gun safety rules?
• What is the difference between immediate action and remedial action when clearing a malfunction?
• This GAU-23 assembly is a retractable metal protrusion that prevents movement of the chain until specific conditions are met, locking the gun in SEAR or MISFIRE by contacting the master link.
• Which option best describes why the muzzle direction must be maintained when range commands stop live-fire?
• Which item is described as an air-launched missile deployed from a Common Launch Tube mounted on the ramp of an AC-130, 43 inches long and weighing 33 pounds including a 13-pound warhead?
• This Law of Armed Conflict principle involves only taking actions when they are necessary to achieve a legitimate military objective.
• This Trainable Gun Mount sub-assembly is a moveable mount between the gun box and the base plate that allows for azimuth movement.
• Which term describes an automatic weapon that continues firing after the trigger is released?
• What is the purpose of using a backstop with appropriate energy absorption?
• In the firing cycle, which stage follows chambering?
• Define misfire, hang fire, and squib.
• This GAU-23 (30mm) assembly is threaded to the barrel. It receives and locks the bolt in place and contains firing pressure
• An interruption in the weapon's firing cycle, commonly called a 'bent gun' is known as which?
• Directions of rotation or pivot possible on a weapon system mounted on the aircraft. Which term describes left-right rotation?
• Forward force generated through a mechanism for bringing a weapon back to the battery position is called what?
• Which device is activated by recoil to operate the mechanical interlock?
• What doctrine covers the preparation, planning, execution and assessment of personnel recovery?
• What is the maximum effective range of the M240 (7.62mm)?
• Which component is mounted on top of the recoil cylinder and engages during the last inches of counter recoil to ease the gun back into battery?
• Which bolt position is characterized by the bolt grabbing the round and chambering it after trigger pull?
• What is the basic cycle of operations?
• Which part is contacted by the breech during recoil to actuate the mechanical interlock?
• Which M102 105mm component is externally threaded at the muzzle to screw into the blast diffuser?
• The GBU-39 SDB has a wingspan of 63 inches when deployed.
• What is a barrel obstruction and why is it dangerous?
• Which LOAC principle prohibits using any kind or degree of force not necessary for the purposes of war, with the aim of minimizing loss of life, time, and physical resources?
• Which term describes the forward force produced to move a weapon back toward the battery after firing?
• What is dry-fire practice and when is it appropriate?
• After unloading a pistol, which action should you perform before handing it to someone else?
• The cylindrical portion of the projectile between the bourrelet and the rotating band contains most of the explosive filler. What is this portion called?
• How many Optical Encoders does a standard gun have?
• What term describes the grooved or cut portions of a weapon system that provide a path of least resistance for moving components to travel along?
• Which statement correctly describes the maximum ranges and tracer burnout values shared by GAU-18A and GAU-21?
• This M102 (105mm) component stops the recoiling parts and turns them to the battery position without excessive shock.
• What is the correct action before leaving the range bench at the end of the day?
• What is the firing rate of the GAU-2/C (7.62mm)?
• The M240 (7.62mm) fires which caliber?
• Which component pulls the spent cartridge from the chamber?
• In this system, what does the acronym GCP stand for?
• What is the main structural component of the GAU-2/C (7.62mm)?
• Explain the difference between a magazine and a clip.
• What are the two most common screwdriver heads?
• Which weapon has tracer burnout at 750 meters?
• Which item is a foldable pocket-sized multi-tool containing pliers, knives, tweezers, and screwdrivers?
• What is the appropriate action if you see someone handling a loaded firearm in an unsafe area?
• Which term packages bullet, gunpowder and primer into a single case to fit the chamber?
• Which ammunition type is used for simulated live fire training?
• Caliber can be measured in which units?
• The GAU-18A .50 caliber armament is used on which platform and features include fully automatic operation with feeding from either side and tracer burnout at 1,500 meters?
• Elevation movement refers to movement in which direction?
• What breathing technique supports accuracy?
• The GBU-39 (Small Diameter Bomb - SDB) is capable of striking fixed or moving targets and can be employed in adverse weather.
• Which tool combines an open-ended wrench with a box end?
• Which sub-assembly provides the ACTUAL gun position by providing angular measurements to the SMA's Gun Control Panel (GCP)?
• Which sub-assembly is the moveable mount between the gun box and the base plate that provides azimuth movement?
• What is the primary purpose of the base plate in the projectile assembly?
• Which component ejects the cartridge clear from the firearm?
• What is the tracer burnout distance for the GAU-18A?
• Which component seals the aircraft opening to allow pressurization when the 105mm is retracting?
• What is the term for the left-right directional measurement of a weapon mount on an aircraft?
• How should firearms be stored at home for safety?
• Failure in the firing cycle due to improper firing or broken components is known as what?
• This weapon is percussion fired, air-cooled, and hand-fed. It has a single barrel and complex recoil system. Rate of fire depends on crew efficiency.
• Which practice is part of range safety to prevent injuries?
• Which statement accurately describes factory ammunition versus handloads?
• Wood or plastic handle attached to a fixed steel blade with varying head-shapes. The Two most common heads are flat or phillips-head.
• What term describes items such as rings and jewelry that significantly increase injury risk when reaching inside a weapon system?
• This sub-assembly of the M102 (105mm) Recoil Mechanism absorbs gun recoil by gradually checking and stopping rearward motion of the recoiling parts. It is divided into two parts: the regulator body and nitrogen chamber and cushions counter-recoil.
• Which item holds a group of cartridges for insertion into a magazine?
• In the event of a fire, what are the withdrawal distances for nonessential personnel versus when Net Explosive Weight exceeds 500 lb with HE ammo onboard?
• The GAU-21 armament is used on HH-60W, CV-22, and MH-139; it is short-recoil-operated, fires from the open-bolt position, and has a maximum range of 7,000 meters. Which option is correct?
• Where should lubrication be applied and why?
• Which term best describes an operation involving rapid insertion/extraction of personnel and equipment without landing or detection by the enemy in a tactical environment?
• Which five elements comprise the personnel recovery mission analysis and methods?
• Which component consists of a metal cover crimped, caulked, or welded to the base of the projectile to prevent heating of the explosive filter?
• What is the purpose of a range safety briefing?
• What are the components of a propellant explosive train?
• Which term describes a malfunction where the cartridge fails to eject cleanly, sometimes causing a jam?
• The forward bearing surface of a projectile that centers the forward part in the bore is called what?
• Which tool is a dual-head wrench with an open-ended head and a box head?
• Which feature makes GAU-23 ideal for close air support due to its fragmentation pattern?
• What are the three electrically adjustable fuzing settings for both the AGM-176 (Griffin Missile) and The GBU-39 (Small Diameter Bomb - SDB)?
• Which M102 (105mm) component provides muzzle blast suppression for the left wing trailing-edge structure and flaps and is internally threaded to receive the muzzle end of the tube?
• Holds the round and brings it toward the chamber.
• Dim Tracer is a tracer visible under NVG for 7.62mm rounds. Which option correctly identifies Dim Tracer?
• Which bomb is an air-launched, winged glide bomb deployed from a wing-mounted rack, with 63 inch wingspan, weighing 250 pounds and 71 inches long?
• What is the difference between accuracy and precision?
• Which statement best describes a key design limitation of the M240 (7.62mm)?
• In the Kill Chain, what is the final action?
• Which assembly assists the rod assembly when pushing the bolt into the battery position and helps feed the belt smoothly?
• Mount responsible for attaching the weapon to the aircraft, training it towards the proper firing positions, and transferring recoil to the fuselage structure. Provides movement along elevation and azimuth axis. Electrically moved by dedicated actuators. Also allows for manual movement using a speed handle.
• Which term refers to the action that verifies the weapon is clear of ammunition or spent casings and is in a safe configuration?
• What is meant by line of fire on a range?
• What is the firing rate range of the GAU-21 .50 caliber?
• Which component seals the bore and imparts spin on the projectile by following rifling as it travels through the barrel?
• Which feeds new rounds onto the bolt face and moves spent cases to the ejection chute, indexed to 1/3 of a revolution during one gun cycle?
• Which term describes the forward bearing surface that centers the projectile in the bore?
• Name three common firearm malfunctions.
• Which houses the firing pin assembly and converts rotational movement of the chain into forward/aft movement of the bolt?
• This M102 (105mm) sub-mechanism is a vertical sliding wedge containing the components that make up the firing mechanism. Internal components include the trigger, percussion mechanism, sear, retractor, and the cocking lever.
• Which factor increases the frequency of firearm cleaning?
• Explain the difference between sight alignment and sight picture?