Rifleman Basic RBE Knowledge Practice Exam

These questions are part of the practice quiz. Start practicing

• Name at least two moving parts that require lubrication in a semi-automatic rifle and explain why.
• The M2 rifling characteristics include:
• Which equipment can enhance stability in the prone-supported position?
• After removing the bolt carrier group during field-stripping, what is the next step?
• When encountering a suspected feed problem, which action should be performed first?
• Which weapon is recoil operated?
• In field-stripping, after clearing the rifle and removing the magazine, what is the next step?
• Which statement about the 240B/M2 cycle is true?
• Which statement about twist directions is correct?
• Which weighs 58 units?
• RREMS statement comprises which actions?
• Time of flight is listed as an element of which document?
• What is the maximum range of the MK19 in meters?
• Which weighs 58 units?
• Describe the advantages of the prone-supported position and the basic setup to maximize stability.
• Which of the following describes the M2 characteristics?
• Which component weighs 27.1 units?
• Which signs indicate a rifle may require maintenance beyond cleaning?
• When transitioning from standing to kneeling supported, what alignment should your body have to maintain balance?
• What is a stovepipe jam and how do you clear it?
• How often should you perform basic cleaning and inspection in the field and after extended use?
• Which are types of defilade?
• What is the maximum point range of the M2 in meters?
• What is the purpose of maintaining a cheek weld during firing?
• What is the traverse in mils for the Mils medium MG tripod?
• What is the maximum area range of the MK19 in meters?
• Elevation adjustments are typically performed via which sight components?
• Which lubricant is not listed for the 240B lubrication set?
• Which statement best captures the fundamental safety rule about muzzle direction when not actively engaging a target?
• Which item represents the total weight of the M2?
• Which substance is not listed as a MK19 lubricant?
• What is the maximum range of the 240B?
• Which pairing correctly matches the MK19 sustained rate with its burst pattern?
• Which step follows firing in the MK19 cycle?
• Which lubricants are specified for the MK19 system?
• Which option describes the 240 cyclic rate?
• What breathing pattern maximizes steadiness before a shot?
• Which item weighs 26 units?
• Why is it important to always check the primer orientation and seating when inspecting a cartridge before loading?
• What common practice supports accurate alignment with the target in the prone position?
• What is a mission of machine guns (MGs) in offense?
• What is the pause duration for the 240 rapid rate?
• What is the correct immediate action to take on a misfire where the trigger is pulled but no round fires?
• IMAC describes fires in support of which set of tasks?
• What is the maximum area range of the M2 in meters?
• What adjustments or techniques help hit a moving target at moderate range?
• What is the maximum range when the 240B is mounted on an area bipod?
• Which weapon has equal maximum range and maximum area values?
• In a gas-operated rifle, which component is directly driven by the diverted gas to cycle the mechanism?
• In crosswind conditions at moderate range, which statement is correct about compensating for wind?
• Explain what is meant by an 'offset' or 'zero shift' and how to correct it.
• How many transmissions are there in a CFF?
• Which term describes fire that travels parallel to the ground?
• Which routine maintenance should be performed after firing in the field to ensure reliability?
• Which are the classes of fire with respect to the gun?
• What are the two common types of rifle sights and how does each influence aiming technique?
• Outline a safe unloading and verification procedure to ensure a rifle is unloaded.
• Which component weighs 58 units?
• Which lubricants apply to the 240B system?
• Distinguish Immediate Action from Corrective Action and when to apply each in clearing a malfunction.
• What is the muzzle velocity of the M2 in feet per second?
• What does rifling twist rate describe?
• Which statement about MK19 rifling is true?
• Which item weighs 77.6 units?
• Which weapon is a grenade machine gun?
• What are the classes of fire with respect to ground?
• What is the maximum range when the 240B is mounted on a point tripod?
• During continuous operation, how often should the M2's barrel be changed?
• Which system has the highest muzzle velocity?
• What is the 240 sustained rate defined by?
• Which rate requires a barrel change every hour or if damaged?
• How many elements are in a CFF?
• What is the MK19 rapid rate and its burst pause?
• Which weapon is gas operated?
• What is a double feed, and what steps would you take to remedy it safely?
• The M2 rifling features
• Describe a safe chamber check procedure to confirm the weapon is empty.
• Which component weighs 14.8 units?
• Which of the following is listed as a type of fighting position?
• When should you seek additional instruction or supervision when using a rifle?
• Which weighs 44 units?
• Which are elements of the MTO?
• In which scenario is the standing offhand position most appropriate?
• Which pairing correctly matches the MK19 rapid rate with its burst pause?
• Which statement is one of the four fundamental firearm safety rules?
• What is the purpose of using a rifle sling and how does it affect stability?
• What step helps mitigate the effects of rain, dust, and cold on rifle function?
• Which component weighs 6.6 units?
• Which weighs between 70 and 80 units?
• Which weighs 12.9 units?
• Which weighs 30 units?
• Which system lists LSA-T as a lubricant option?
• Differentiate between a 'zero' and a 'point of aim' at a chosen distance, and why you may choose different zero distances for different mission profiles.
• Which step comes immediately before firing in the 240B/M2 cycle?
• What are the limitations of the standing offhand position and typical scenarios to use it?
• Which statement best compares red dot sights and iron sights for a novice shooter?
• Which weapon is designed not to cook off?
• What are the classes of fire in respect to target?
• For MK19 lubrications, which complete set is correct?
• What is the effect of a properly applied sling when resting the rifle on a support?
• If a barrel has a twist described as one turn in fifteen inches, what is the twist rate in inches per complete turn?
• What is the tracer burnout range for the 240B?
• What is the recommended first action if you lose sight picture during aiming?
• What is the correct way to transport a rifle in a vehicle to maintain safety and readiness?
• Describe the steps for a proper magazine change on a typical semi-automatic rifle to avoid a feed failure.
• The rifling with eight lands and grooves belongs to which firearm?
• GOTWA stands for Going, Others Going, Time, What To Do If No Return, Actions Upon Contact. Which option correctly represents GOTWA?
• Which rate achieves 550-650 rpm?
• What is the maximum range when the 240B is mounted on an area tripod?
• List three common rifle stoppages and a basic method to clear each.
• Which statement defines the 240 rapid rate?
• Which description accurately summarizes how a gas-operated, magazine-fed rifle cycles using gas pressure?
• What should you inspect if you experience a failure to fire due to a possible defective primer?
• Which weapon has the greater maximum range?
• What is the MSL degree setting for a bipod configuration?
• How should you move with a rifle in a squad to minimize risk to yourself and others?
• Which statement best describes muzzle discipline?
• Which items are considered characteristics of fire?
• Which is the lightest component?
• What is the difference between ball ammunition and tracer ammunition and when each is used?
• Distinguish between sight alignment and sight picture, and explain how to achieve both simultaneously.
• For the M2 heavy machine gun, what describes its cyclic rate and operation pattern?
• If you lose your sight picture during an aiming sequence, which action should you take?
• MORT stands for which four elements?
• What is a ballistic reticle and how can it be used for range estimation and holdovers?
• What is the MK19 cyclic rate?
• Which factors cause bullet trajectory to drop over distance and how is the drop typically compensated?
• Which unit best describes twist rate?
• Which rate corresponds to M2 sustained rate?
• Which statement accurately describes the MK19 sustained rate and burst pattern?
• What is the purpose of zeroing a rifle and how does it relate to sight alignment?
• Which weapon is blowback operated?
• What is the purpose of using a ballistic reticle's range-estimating features?
• What is the maximum point range of the MK19 in meters?
• Which option correctly defines M2 rapid rate?
• In which scenario would you most likely seek additional instruction or supervision?
• When adjusting windage or elevation, what method is used to confirm changes?
• What is the maximum range of the M2 in yards?
• If you have a vertically displaced group but the group is centered on the target, what adjustment would you make on the rifle?
• In safety terms, what is the best practice for keeping finger off the trigger?
• Which step directly follows feeding in the 240B/M2 cycle?
• What is a common risk when transitioning from standing to kneeling if you fail to maintain proper posture?
• What is the traverse in mils for the Mils heavy MG tripod?
• Which sequence correctly describes clearing a stovepipe jam?
• Which statement correctly describes the rifling of the M2?
• What is a ballistic holdover and when would you use it?
• What is the maximum range of the M2 in meters?
• What is the standard sequence of range commands from 'hot range' to 'cease fire' and what actions are expected of the shooter at each stage?
• Which weighs 26 units?
• What are the types of pairs?
• What is the muzzle velocity of the 240B round in feet per second?
• When should the trigger finger be placed on the trigger?
• Which of the following describes the MK19 characteristics?
• Describe the natural respiratory pause and how you time your trigger break with it.
• Which of the following is NOT a type of maneuver?
• How many lands and grooves does the rifling have, and what is the twist specification?
• The MK19 cycle of operations includes which sequence?
• Which rate uses a 6-9 round end burst with a 10-15 second pause?
• Which statement about the M2 rifling is true?
• In field operations, MTO stands for which of the following?
• Which action is not part of muzzle discipline?
• Which rate features a continuous burst with no defined pause?
• The MK19 rifling twist is:
• What is a typical cause and remedy for a Failure to Feed (FTF) in a semi-automatic rifle?
• What is the MSL degree setting for a tripod configuration?
• What is the grazing fire range of the M2 in meters?
• What is Natural Point of Aim (NPOA)?
• What is the total weight of the MK19?
• Lands and grooves refer to:
• How do you differentiate and adjust windage and elevation on typical rear and front sight systems?
• Which action sequence is a standard response to a stove-pipe stoppage?
• The 240B and M2 cycle of operations includes which sequence of steps?
• Which describes proper trigger control technique to minimize smear?
• During unloading, why is cycling the action to eject a chambered round necessary?
• What is the general purpose of performing ballistic calculations in field shooting?
• What is the muzzle velocity of the MK19 in feet per second?
• Which weapon has the higher maximum range?
• Which option is not a step in the 240B/M2 cycle?
• Which lubricants are specified for the M2 system?
• Which statement accurately compares the twist rates of MK19 and M2?
• Explain the importance of cheek weld and how it affects accuracy.
• The weapon's rifling has how many lands and grooves and what is the twist direction and rate?
• Which lubricant is common to all three listed weapon systems?
• The M2 rifling features:
• How do rain, dust, and cold affect rifle function, and what steps help mitigate these effects?
• What is the proper seating of a round in the chamber to ensure reliable feed?
• Which statement correctly describes the MK19 rifling twist?
• Which of the following is a purpose of offensive operations?
• Which of the following describes the 240B?
• At the 240 sustained rate, how often should the barrel be changed?
• Which of the following is a type of offensive operation?
• What is the high-level step for field-stripping a standard semi-automatic rifle before disassembly?