18B Mortars Practice Exam

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• Which two serial numbers must match on the M120 system?
• How do you calculate the number of intervals needed to cover a target with the M224 or M252?
• What is the main advantage of using mortars in combat?
• What’s the primary purpose of “point of origin” calculations?
• How many rounds per minute can the M252 fire at maximum rate for 2 minutes?
• What action must be taken for a misfire with the M120?
• What is the purpose of the white line (skunk line) on the 120 mortar?
• What is a “fire for effect” mission with mortars?
• How many mortars are typically found in a squad?
• What is the maximum rate of fire of the M120?
• What type of support is generally provided by mortars in a combat scenario?
• At what point does the mortar to be laid announce "1 or 0 mil mortar lay"?
• What is the first step to determine how many turns of traverse to use?
• Who is responsible for swabbing the bore of the mortar?
• Which mode is NOT a firing option for the 60mm cannon?
• What is the maximum charge that can be fired handheld on a 60mm mortar?
• How does the design of mortar ammunition influence its performance?
• Which of the following is NOT a common use of mortars?
• What is the weight of the M298 Cannon?
• What is the effective range when firing a 60mm mortar in Conventional mode?
• Which round is classified as M888?
• When performing a mortars mission, what does “cold gun” indicate?
• What are the four positions within a mortar squad?
• How much does a standard 81mm mortar round weigh?
• Which elevation range correspond to the Lower Saddle?
• What aspect is NOT considered in the criteria for selecting a mortar position?
• What is the nomenclature of the 120mm cannon?
• In mortar crew operations, what is often assessed before firing?
• What is the recommended distance mortars should be placed from friendly units?
• What is the nomenclature for the bipod mounted on the carrier?
• What does the acronym BAD stand for in mortar operations?
• During a fire mission, what is the term used for the point where the round impacts?
• What is the effective range of the M224 60mm mortar?
• In the Direct Lay method, what does the gunner do with the gunsight?
• What does the term "fire for effect" mean in mortar operations?
• What are the primary components of a mortar system?
• What does the mortar to be laid say to indicate they are ready for recheck?
• Which mortar system nomenclature indicates the latest model?
• What is the function of a gradient in mortar firing?
• What is the range of elevation in mils for mortar operations?
• What term is used for the distributed fire of a wide target?
• What is the nomenclature of the 60mm mortar's boresight kit?
• What is the bursting radius of the 120 mortar system?
• Which of the following methods is used to engage targets without an FDC?
• What is the sustained rate of fire for the M252 mortar?
• What type of maintenance is essential for mortar equipment?
• What are the four functions of the M734 Multi-Option Fuze?
• What type of round is the M880 classified as?
• Which fuse combines multiple detonation functions including delay and proximity?
• Which component is responsible for triggering the mortar round's ignition?
• What is the total mil rotation for both the M8A1 and M7A1 Baseplates?
• What effect does being beyond 100m from the gun have on deflection correction?
• Which of the following best defines the term "near-surface burst" (NSB)?
• When should the bore of the M120 be swabbed?
• What does the mortar to be laid announce after applying the deflection and manipulating the mortar?
• What is the correction range for bracketing at 999m?
• What is the maximum range of the M252 mortar system?
• What is the adjustment for one turn of the traversing handwheel on the Lower Saddle?
• What is one major advantage of using mortars over other artillery systems?
• What type of ammunition is typically used in mortars?
• Which aspect of mortar construction helps it absorb recoil?
• What is the appropriate term for the cannon's capability to adapt to different firing modes?
• How many total mils are available on the M252 Mount Traverse Bar?
• What command begins the reciprocal lay process in mortar operations?
• What is the elevation range of the Upper Saddle?
• How important is teamwork during mortar operations?
• Which factor does NOT typically affect the trajectory of mortar fire?
• What is the purpose of using an aiming stake in Direct Alignment?
• During mortar operations, what plays a crucial role besides the mortar itself?
• What is the nomenclature of the 120mm Mortar System?
• What is the minimum safe distance for a 120mm mortar?
• What types of mortar rounds are designed for area suppression?
• Which of the following weights corresponds to the M9A1 Baseplate?
• How is the effective range of a 60mm mortar categorized in terms of firing mode?
• What does the white line (skunk line) on the 120 mortar need to match with?
• Why is timing important in a mortar fire mission?
• What is the purpose of a mortar’s base plate?
• Which type of round is identified as M879?
• What determines the type of fuse selected for a mortar round?
• What type of projectiles can a 81mm mortar fire?
• How do you determine the number of turns per interval with the M224 or M252?
• Why is communication critical in mortar operations?
• How many mils does one turn of the traversing handwheel on the Upper Saddle adjust?
• In mortar operation, what is the primary role of observation?
• What defines a "danger close" situation?
• What is the range of the M120?
• What is the minimum distance the FO/SL must be from the guns in Direct Alignment and Direct Lay?
• What technique is employed by a section in a displacement maneuver while one section is stationary?
• What is the maximum effective range of the M120 120mm mortar?
• For what purpose is the Lower Saddle utilized?
• What is the primary method of communication for mortar units in combat?
• What characteristic distinguishes a mortar from conventional firearms?
• What is an essential pre-firing check for mortars?
• Which type of round is known as M816?
• When is the mortar to be laid to announce "1 or 0 mil mortar lay"?
• What is the nomenclature of the M120 bipod mounted on the ground?
• What is the nomenclature of the mortar's sight unit?
• What is one of the benefits of the 'Diamond' firing formation?
• What is the primary function of a mortar?
• What does Overhead and Mask Clearance affect in mortar operations?
• What is the function of a Mortar Platoon Leader?
• What does one turn of the elevation crank correspond to in mils?
• To provide effective fires, how far apart should mortar gun positions be?
• How can combat stress affect mortar operations?
• When using Searching or Traversing Fire, how is the total turns of traverse determined?
• Which of the following is NOT a firing formation used in mortar operations?
• What does Mask Interference impede?
• What two functions does the M935 PD fuse have?
• What is the primary purpose of high explosive (HE) mortar rounds?
• What is the sustained rate of fire of the M120?
• What is the nomenclature of the sight used with the M252 mortar?
• How does the application of fire support through mortars impact battlefield tactics?
• Which factor impedes High Angle Fire according to the effects of overhead clearance?
• What is the nomenclature of the M120 baseplate?
• What is the recommended correction for ranges greater than 2000m during bracketing?
• What is the standard number of personnel in a mortar squad?
• What type of weapon sights are typically used with mortars?
• What kind of rounds are used for training purposes with mortars?
• What is the extent of traverse mechanism on the M190 bipod?
• What is the total available traverse on the M170A1 Bipod?
• What is the number of mortars typically present in a section?
• How often must the M120 bore be swabbed at lower elevations?
• How is a mortar round typically loaded?
• Which method involves using an aiming stake aligned with the target when firing without an FDC?
• What role do charts play in mortar calculations?
• What type of round does M819 represent?
• What is the total mil rotation for the M8A1 Baseplate?
• Which of the following is a criteria for selecting a mortar position?
• In mortar position selection, what does 'Overhead Clearance' mean?
• How does a mortar differ from artillery?
• How are mortar rounds typically transported?
• What special precautions must be taken during night operations with mortars?
• How many modes can the 60mm cannon be fired in?
• What are the four basic elements of mortar firing?
• In the context of firing formations, which formation is described as 'Lazy W'?
• How many rounds are typically needed to settle the baseplate?
• Which component has the nomenclature M225A1?
• What does the term "drop zone" refer to?
• What is another method, besides Direct Alignment, used to engage targets without an FDC?
• How many mortars are typically included in a platoon?
• How much does the M298 cannon weigh?
• What is the total mil rotation for the M8 Baseplate?
• What is the weight of the M9A1 baseplate?
• What is one primary function of mortar systems in military operations?
• What is the nomenclature of the M252 baseplate?
• Which acronym is utilized for making corrections in subsequent fires?
• What is the final command given by the base mortar regarding aiming stakes?
• Why is training in various conditions crucial for mortar crews?
• What indicates a failed ignition in a mortar round?
• What is the sustained rate of fire for a 60mm mortar?
• Why are mortars referred to as "high-angle" weapons?
• What color represents training rounds in mortar nomenclature?
• What type of terrain is MOST beneficial for mortar operations?
• What correction is used for ranges of 1000-2000m during bracketing?
• What is the nomenclature of the 81mm mortar system?
• What calculation is used to determine the deflection correction if the FO/SL is beyond 100m from the gun?
• What is the primary role of a Fire Direction Center (FDC)?
• Which characteristic is vital for mortar rounds in combat conditions?
• What is the method that uses the mortar sight to directly aim at the target?
• Which of the following is NOT a method of reconnaissance for mortars?
• How can weather affect mortar operations?
• What is the primary purpose of displacement techniques used by platoons?
• What is the primary function of the DLY fuse?
• What does RSOP stand for in relation to mortar operations?
• What is the importance of adjusting fire in mortar operations?
• What is the primary advantage of mortars over direct fire weapons?
• What is the term for the distributed fire of a deep target?
• At what height above ground does a PRX engage?
• Which term refers to the original purpose of displacement techniques in mortar operations?
• What are the deflection and elevation settings for Direct Lay/Alignment?
• Which type of round is designated as M821/A1?
• What does the M115 denote in the context of 60mm mortars?
• Which of the following is the most important criterion for selecting a mortar position?
• Which of the following actions helps ensure safety during mortar operations?
• For the M224 or M252, how do you calculate the number of rounds needed to cover a target area?
• What is the function of a mortar crew's gunner?
• What is the function of the IMP fuse?
• What is the purpose of illumination rounds fired from a mortar?
• What is the primary purpose of a Declination Station?
• What is the nomenclature for the 60mm mortar system?
• What is the elevation range of the M120 when ground-mounted?
• What is the nomenclature of the 60mm mortar's bipod kit?
• Which of the following is NOT a type of fuse used on mortar rounds?
• Which method is commonly used to calculate firing data?
• Which component is critical in determining the accuracy of mortar fire?
• What is the purpose of a mortar pit?
• What indicates the latest configuration of Extractor Catches?
• What are the primary factors affecting mortar range?
• Which of the following terms refers to a type of occupation characterized by a planned approach?
• What role does the forward observer play in mortar operations?
• What is the maximum rate of fire for a 60mm mortar?
• What safety procedures must be followed when operating a mortar?
• What is the relationship between the number of turns and the number of intervals in the context of artillery fire?
• What is the effective range when firing a 60mm mortar in Handheld mode?
• What is a critical factor in ensuring the effectiveness of a mortar round?
• What designation is given to the HE round known as M889?
• How high above ground does a NSB engage?
• Which fuse type is designed for very quick detonation upon impact?
• What defines an indirect fire support operation?
• What does the term "safety zone" refer to in mortar operations?
• On the M252, how many mils does one full turn of the elevation or traversing handwheels correspond to?
• What technique is preferred for wide targets during distributed fire?
• What is the most commonly used 81mm mortar in the U.S. Army?
• What does the mortar to be laid announce after referring their sight to the base mortar gun sight?
• What does the M190 bipod allow in terms of elevation control?
• What should you consider regarding routes in the selection of a mortar position?
• Which is a common type of mortar used in combat?
• Which components are part of a mortar round?
• What is the maximum elevation for the M29 81mm mortar?
• What type of round is the M853/A1?
• How much does each turn of the elevation crank on the M190 bipod equal to?
• Which method ensures that the mortar is directly aimed at the target?
• What is the primary objective when conducting a fire mission?
• Which factor influences the range of mortar fire?
• What is the recommended number of rounds per 100m when using the M224 or M252?
• What do the vantage and mortar point need to align with in the Direct Alignment method?
• What is the primary use of the Upper Saddle?
• How much elevation range does the M120 offer when carrier-mounted?