M4 Carbine Weapons Test

64 Questions

Settings
Please wait...
Rifle Quizzes & Trivia

M4 QC questions


Questions and Answers
  • 1. 
    What caliber is the M4 Carbine?
    • A. 

      7.62 mm NATO

    • B. 

      .223 Remington

    • C. 

      5.56 NATO

    • D. 

      5.56mm X 39mm

  • 2. 
    What rounds are standard duty issue for the M4 carbine?
    • A. 

      M855 Ball / M856 Tracer

    • B. 

      M193 Ball / M196 Tracer

    • C. 

      M200 Blank / M199 Dummy

    • D. 

      M80 Ball / M406 Tracer

  • 3. 
    Can M193 ball and M196 Tracer be safely fired in the M4 carbine?
    • A. 

      Yes

    • B. 

      No

  • 4. 
    How can M855 ball ammunition be identified?
    • A. 

      Copper jacketed projectile with green tip

    • B. 

      Fluted case

    • C. 

      Violet colored tip

    • D. 

      Copper jacketed projectile

  • 5. 
    How many rounds can be loaded into the standard issue M4 carbine magazine?
    • A. 

      30

    • B. 

      28

    • C. 

      20

    • D. 

      15

  • 6. 
    Loaded with a 30 round magazine, the M4 cabine weighs?
    • A. 

      7.5 lbs

    • B. 

      8.79 lbs

    • C. 

      6 lbs

    • D. 

      6.49 lbs

  • 7. 
    What is the purpose of the compensator on the M4 carbine?
    • A. 

      Helps keep the muzzle from rising during firing

    • B. 

      Protects the muzzle from dirt

    • C. 

      Increases muzzle flash when fired

    • D. 

      Used to mount AN/PAQ-4C laser

  • 8. 
    What is the correct description of the M4 Carbine?
    • A. 

      Light weight, gas operated, air cooled, magazine fed, shoulder fired weapon

    • B. 

      Light weight, reciol operated, air cooled, magazine fed, hip fired weapon

    • C. 

      Light weight, belt fed, blow back operated, hip fired weapon

    • D. 

      Light weight, pump action, breech loaded, shoulder fired weapon

  • 9. 
    The cycle of operation for the M4 Carbine is?
    • A. 

      Firing, unlocking, extracting, ejecting, cocking, feeding, chambering, locking

    • B. 

      Firing, extracting, unlocking, ejecting, cocking, feeding, chambering, locking

    • C. 

      Charging, firing, extracting, ejecting, cocking, feeding, chambering, locking

    • D. 

      Feeding, chambering, locking, firing, unlocking, extracting, ejecting, cocking

  • 10. 
    What is the maximum effective range with the M4 carbine on a "point target"?
    • A. 

      500 m

    • B. 

      550 m

    • C. 

      600 m

    • D. 

      3600 m

  • 11. 
    What is the maximum effective range with the M4 carbine on an "area target"?
    • A. 

      500 m

    • B. 

      550 m

    • C. 

      600 m

    • D. 

      3600 m

  • 12. 
    What is the maximum effective rate of fire on "semi" for the M4 carbine?
    • A. 

      700 - 970 rpm

    • B. 

      12 - 15 rpm

    • C. 

      45 rpm

    • D. 

      90 rpm

  • 13. 
    What is the maximum effective rate of fire on "burst" for the M4 carbine?
    • A. 

      700 - 970 rpm

    • B. 

      12 - 15 rpm

    • C. 

      45 rpm

    • D. 

      90 rpm

  • 14. 
    The M4 carbine has a maximum range of?
    • A. 

      3600 m

    • B. 

      2653 m

    • C. 

      1 Kilometer

    • D. 

      500 m

  • 15. 
    What is the cyclic rate of fire for the M4 carbine?
    • A. 

      12 - 15 rpm

    • B. 

      45 rpm

    • C. 

      700 - 970 rpm

    • D. 

      90 rpm

  • 16. 
    What is the sustained rate of fire for the M4 carbine?
    • A. 

      12 - 15 rpm

    • B. 

      45 rpm

    • C. 

      90 rpm

    • D. 

      700 - 970 rpm

  • 17. 
    What are the proper steps to "clearing" the M4 carbine?
    • A. 

      Place selector lever on "Safe" if possible, remove magazine, lock bolt to rear, check chamber, ensure selector on "safe", let the bolt go foward

    • B. 

      Place selector lever on "safe" if possible, remove magazine, check chamber, ensure selector on "safe"

    • C. 

      Remove magazine, charge weapon 3 times, place finger in chamber, place selector lever on "safe"

    • D. 

      Remove magazine, place selector on "safe", squeeze trigger and hold, charge weapons, release trigger and listen for audible "click"

  • 18. 
    What is the proper loading procedure for the M4 carbine for duty?
    • A. 

      Verify weapon clear, insert magazine, close bolt, tap forward assist, ensure selector on "semi"

    • B. 

      Verify weapon clear, selector to "safe", close bolt, close ejection port cover, press trigger (hammer should not fall), insert magazine (if authorized), ensure selector on "safe"

    • C. 

      Remove empty magazine, insert loaded magazine, close bolt, ensure selector to "safe"

    • D. 

      Verify weapon clear, close bolt, insert magazine, ensure selector on "safe, charge weapon

  • 19. 
    What is the proper procedure for reloading the M4 carbine?
    • A. 

      Remove empty magazine, insert loaded magazine, and hit bolt catch to close the bolt, tap forward assist

    • B. 

      Place weapon on "safe", remove empty magazine, hit bolt catch to close the bolt, insert loaded magazine, charge weapon

    • C. 

      Place selector lever on "safe", remove emty magazine, insert loaded magazine, hit bolt catch to close bolt

    • D. 

      Remover empty magazine, insert loaded magazine, hit bolt catch to clsoe bolt, charge weapon

  • 20. 
    If you pull the trigger and your M4 carbine fails to fire, what must you do?
    • A. 

      Keep the weapon pointed in a safe direction, raise your firing hand and wait for help

    • B. 

      Execute a rapid reload, and continue to fire

    • C. 

      Clear your weapon, detail strip and inspect parts for chips, cracks, and burrs

    • D. 

      Quickly apply immediate action procedures

  • 21. 
    What acronym identifies the proper "immediate action" procedures for the M4 carbine?
    • A. 

      LACE

    • B. 

      SALUTE

    • C. 

      SPORTS

    • D. 

      TTFN

  • 22. 
    What are the steps to applying "immediate action" to the M4 carbine?
    • A. 

      Tap upward on bottom of magazine, charge weapon, attempt to fire

    • B. 

      Clear weapon, charge weapon 3 times, reload, attempt to fire

    • C. 

      Slap upward on the bottom of the magazine, pull charging handle to rear, observe for ejection of round or empty case, ensure chamber is clear, release charging handle, tap forward assist, squeeze trigger to shoot

    • D. 

      Slap side of magazine to seat rounds, charge weapon, tap forward assist, attempt to fire

  • 23. 
    How soon should "immediate action" be applied to avoid possible cook-off of a round?
    • A. 

      Within 15 seconds

    • B. 

      Within 1 second

    • C. 

      Within 30 seconds

    • D. 

      Within 10 seconds

  • 24. 
    How many rounds fire continuously and rapidly through the M4 carbine can cause the weapon to heat up to the cook-off point?
    • A. 

      210

    • B. 

      120

    • C. 

      4 to 1 ratio

    • D. 

      140

  • 25. 
    If after applying "immediate action" to your M4 carbine, it still fails to fire, what action should be taken?
    • A. 

      Wait 15 minutes, disassemble and inspect parts for breakage

    • B. 

      Retrieve CDCs and follow instructions listed

    • C. 

      Apply "remedial actions" procedures

    • D. 

      Report the situation to your supervisor or control center

  • 26. 
    What are the proper steps for applying "remedial action" to the M4 carbine with a "failure to feed"?
    • A. 

      Clear weapon, remove jammed rounds, reload and attempt to fire

    • B. 

      Execute a tactical relaod, charge weapon and attempt to fire

    • C. 

      Disassemble weapon and apply operator maintenance

    • D. 

      Inspect magazine to ensure rounds are seated

  • 27. 
    While applying Immediate action you observe a round in the chamber of your M4 carbine and you suspect the weapon is hot enough to cause a cook-off, what action should you take?
    • A. 

      Stare into the ejection port while charging the weapon for 10 seconds to see if round cooks off.

    • B. 

      Keep your face away from the ejection port and remove the round fast. If you can't remove the round within 10 seconds, remove the magazine and let the weapon cool for 15 minutes

    • C. 

      Remove magazine, charge weapon 3 times, reload and attempt to fire

    • D. 

      Call Combat Arms

  • 28. 
    If you cannot remove a round from the "hot" chamber of your M4 carbine within 10 seconds, what action should you take?
    • A. 

      Remove magazine, charge weapon and attempt to fire

    • B. 

      Lock bolt to the rear and attempt to remove the round using your issue Multi-tool or pocket knife

    • C. 

      Keep your face away from the ejection port, point weapon in a safe direction, remove the magazine and let weapon cool for 15 minutes

    • D. 

      Close the ejection port cover, pour water on the weapon to cool it and wait 30 minutes.

  • 29. 
    What is the definition of a "Cook-Off"?
    • A. 

      When a round self detonates from heat buildup in a weapons chamber

    • B. 

      A delayed detonation of the round after the trigger has been pressed

    • C. 

      A live round that has been ejected detonates after striking a rock or hard surface

    • D. 

      A round that fails to fire after immediate action has been applied

  • 30. 
    If you hear a "pop" or experience a noticeable change in felt recoil while firing th M4 carbine, what should you do?
    • A. 

      Apply "immediate action" within 10 seconds

    • B. 

      Apply "remedial action" within 10 seconds

    • C. 

      Do Not apply "immediate action", sop firing immediately because a bullet could be stuck in the barrel

    • D. 

      Apply "SPORTS" within 10 seconds to remove the bullet stuck in the barrel

  • 31. 
    What could happen if immediate action is applied and the M4 carbine is fired with a bullet stuck in the barrel?
    • A. 

      The barrel could melt cause damage to the weapon

    • B. 

      The weapon could explode resulting in damage to the weapon and injury or death to the shooter or others

    • C. 

      The round could cook-off

    • D. 

      Ammunition could be damaged to the point it would have to be turned in

  • 32. 
    What should you do if you believe a bullet may be stuck in the barrel of your M4 carbine?
    • A. 

      Clear the weapon, open the receivers, remove the bolt carrier group and inspect the barrel for obstruction

    • B. 

      Use your cleaning rod to pust the stuck bullet out of the barrel

    • C. 

      Load another ound into the weapon and fire it to force the stuck bullet out of the barrel

    • D. 

      Contact your supervisor or control center

  • 33. 
    What type of malfunction is considered "extremely serious" because of the hazard to the shooter?
    • A. 

      Failure to eject

    • B. 

      Failure to extract

    • C. 

      Failure to feed

    • D. 

      Failure to fire

  • 34. 
    What 3 types of lubricrants are authorized for use on the M4 carbine?
    • A. 

      CLP, LSA, LAW

    • B. 

      CLP, LSA, RBC

    • C. 

      CLP, LSA, Dry Cleaning Solvent

    • D. 

      Militec, Hopped #9, LSAT

  • 35. 
    What temperature ranges require you to use CLP or LSA on your M4 Carbine?
    • A. 

      -10 C and above

    • B. 

      32 F to 120 F

    • C. 

      -10 F and below

    • D. 

      -10 F and above

  • 36. 
    For operation under arctic conditions below -10 F, what lubricant must be used on the M4 carbine?
    • A. 

      CLP

    • B. 

      LSA

    • C. 

      LAW

    • D. 

      10W30 synthetic

  • 37. 
    Can two different types of lubricant be used simultaneously on the M4 carbine?
    • A. 

      Yes

    • B. 

      No

  • 38. 
    What is the definition of "Lightly Lubricated"?
    • A. 

      Barely visible to the eye

    • B. 

      Enough to be spread with a finger

    • C. 

      Dripping wet

    • D. 

      Not visible to the eye

  • 39. 
    What is the definition of "Generously Lubricated"?
    • A. 

      Barely visible to the eye

    • B. 

      Enough to be spread with a finger

    • C. 

      Dripping wet

    • D. 

      Not visible to the eye

  • 40. 
    What must you do before switching lubricants on the M4 carbine?
    • A. 

      Thoroughly clean the weapon with a pressure washer

    • B. 

      Completely remove the old lubricant

    • C. 

      Clean the weapon with gasoline

    • D. 

      Wipe the weapon down with a soft clean cloth

  • 41. 
    Under arctic conditions, what action should be taken to prevent the M4 carbine from freezing up and becoming in-operable?
    • A. 

      Clear the weapon and hand cycle the weapon every 30 minutes

    • B. 

      Clean the weapon every 24 hours with LAW

    • C. 

      Pour warm water over the weapon every 30 minutes

    • D. 

      Test fire the weapon frequently

  • 42. 
    Under hot, wet (jungle) conditions, how should th M4 carbine be lubricated?
    • A. 

      Remove all lubricant and wipe clean more frequently

    • B. 

      Clean and lubricate more frequently with LSA or CLP

    • C. 

      Lubricate more frequently with LAW

    • D. 

      Apply generous amount of LSA to all non-metal parts of the weapon

  • 43. 
    What must the weapon and magazines be frequently inspected for in a hot, wet (jungle) climate?
    • A. 

      Cracked or worn parts

    • B. 

      Corrosion

    • C. 

      Mold and mildew

    • D. 

      Carbon build-up in bore

  • 44. 
    In a hot, dry (desert) climate, how should the M4 carbine be lubricated?
    • A. 

      Lightly lubricate internal parts only using CLP or LSA

    • B. 

      Lighlty lubricate internal parts only using LAW

    • C. 

      Lighly lubricate all metal parts using CLP or LSA

    • D. 

      Generously lubricate more frequently using CLP or LSA

  • 45. 
    In a hot, (desert) climate, what must be continually cleaned from the weapon to prevent stoppages?
    • A. 

      Moisture

    • B. 

      Rust

    • C. 

      Fingerprints

    • D. 

      Sand, fine dust

  • 46. 
    In hot, dry (desert) climate, how often should you clean your M4 Carbine?
    • A. 

      Daily or as soon as possible after firing

    • B. 

      Every 30 minutes

    • C. 

      When you can spread the dust around with your finger

    • D. 

      When your supervisor tells you to

  • 47. 
    In a hot, dry (desert) climate, what can you do to help keep dust and sand out of your M4 carbine?
    • A. 

      Use muzzle cap, keep ejection port closed, keep magazine installed, use protective bag

    • B. 

      Clean weapon and magazines frequently

    • C. 

      Both; Use muzzle cap, keep ejecion port closed, keep magazine installed, use protective bag, and clean weaopn and magazines frequently

    • D. 

      Generously lubricate all surfaces with CLP

  • 48. 
    As a minimum, what items must be contained in the M4 weapon cleaning kit?
    • A. 

      Cleaning rod sections, cleaning rod handle, eyelet, small arms cleaning brush (tooth brush), bore brush, chamber brush, patches, cloth, pipe cleaners, lubricant and/or CLP.

    • B. 

      Cleaning rod sections, eyelet, tooth brush, bore brush, chamber brush, patches, cloth, pipe cleaners, lubricant and/or CLP.

    • C. 

      Cleaning rod sections, cleaning rod handle, eyelet, tooth brush, bore brush, chamber brush, patches, cloth, lubricant and/or CLP.

    • D. 

      Cleaning rod sections, cleaning rod handle, toothbrush, bore brush, chamber brush, patches, cloth, pipe cleaners, lubricant and/or CLP.

  • 49. 
    What lubricant is also used to clean the M4 Carbine?
    • A. 

      LAW

    • B. 

      RBC

    • C. 

      LSA

    • D. 

      CLP

  • 50. 
    What item from your cleaning kit should be used to clean the firing pin hole in the bolt of the M4 carbine?
    • A. 

      Worn bore brush

    • B. 

      Chamber brush

    • C. 

      Patch and firing pin

    • D. 

      Pipe cleaner

  • 51. 
    What item can be used to clean carbon from the back of the M4 carbine bolt assembly?
    • A. 

      Tooth brush and LSA

    • B. 

      New bore brush and CLP

    • C. 

      Old worn bore brush and CLP

    • D. 

      Tooth brush and CLP

  • 52. 
    How is the chamber brush used to clean the M4 carbine chamber?
    • A. 

      Attach to cleaning rod handle, execute plunging and turning strokes

    • B. 

      Attach to cleaning rod, execute turning strokes

    • C. 

      Attach to cleaning rod handle, execute 30 turning strokes

    • D. 

      Attach to cleaning rod handle, execute 30 plunging strokes

  • 53. 
    When operating under normal conditions, how should the M4 carbine bolt assembly and cam pin be lubricated?
    • A. 

      Lighlty with CLP or LSA

    • B. 

      Generously with CLP or LSA

    • C. 

      Lightly with LAW or LSA

    • D. 

      Generously with LAW or CLP

  • 54. 
    When operating under normal conditions, how should the outside of the M4 carbine barrel assembly be lubricated?
    • A. 

      Lightly with LAW or LSA

    • B. 

      Lightly with CLP or LSA

    • C. 

      Generously with CLP or LSA

    • D. 

      Generously with CLP or LAW

  • 55. 
    When operating under normal conditions, how should the M4 carbine front sight post be lubricated?
    • A. 

      Lightly lubricated with CLP, then turned 5 times clockwise

    • B. 

      Lightly lubricated with LSA, then turned 5 times counter-clockwise

    • C. 

      One drop of CLP or LSA onto the front sight post detent pin

    • D. 

      4 drops of lubrication is required, one drop in each notch

  • 56. 
    When operating under normal conditions, how should the Gas Carrier Key be lubricated on the M4 Carbine?
    • A. 

      Place one drop of lubricant into bolt carrier key

    • B. 

      Fill carrier key with lubricant until it over flows

    • C. 

      Apply lubricant to a patch and run through carrier key

    • D. 

      Apply lubricant to bore brush and run through carrier key

  • 57. 
    Under normal conditions, what is the proper method of lubricating the ejector?
    • A. 

      Apply a few drops of CLP to ejector, press down on ejector several times to work lubricant in

    • B. 

      Apply light coat of CLP with clean patch

    • C. 

      Apply generous amount of LAW with patch

    • D. 

      Remove extractor and lubricate lightly with CLP

  • 58. 
    During cleaning and inspection of the M4 carbine, what items should you check on the barrel assembly?
    • A. 

      Compensator looseness

    • B. 

      Front sight post not bent

    • C. 

      Gas tube not bent or cracked

    • D. 

      All of the above

  • 59. 
    When carrying the M4, which safety rule(s) apply?
    • A. 

      Treat all weapons as if loaded

    • B. 

      Never point the weapon at anything or anyone you are not willing to shoot

    • C. 

      Positively identify your target, know what is around and behind your target

    • D. 

      Keep your finger OFF the trigger until your sights are on target

    • E. 

      All of these are correct

  • 60. 
    Allowing the muzzle of your M4 carbine to sweep your partner while exiting your vehicle is a violation of weapon safety procedures?
    • A. 

      True, never point the weapon at anything you don't intend to shoot

    • B. 

      False, a round is not chambered so pointing at personnel is permissible

  • 61. 
    While responding with your M4 carbine, you carry the weapon with your finger on the trigger. Would this be a violation of weapon safety procedures?
    • A. 

      Yes, it would be a violation of weapon safety procedures

    • B. 

      No, it would not violate weapon safety procedures

  • 62. 
    While responding to a building alarm with M4 carbine, you hear movement in the bushes, aim your weapon at the bushes, give the command "Halt" and fire three rounds. Would your actions violate weapon safety procedures?
    • A. 

      Yes, you failed to positevly identify the target

    • B. 

      No, the person looked suspicious

  • 63. 
    You respond to a call of "shots fired" on the flight-line during the annual air show. On arrival you observe an armed individual in the crowd of people who points a weapon at you so you immmediately fire 5 rounds at the individual without regard for bystanders. Would your actions violate weapon safety procedures?
    • A. 

      Yes, because you did not consider the safety of other bystanders around and behind the target

    • B. 

      No, because the individual pointed a weapon at you

  • 64. 
    Which statement is true about the characteristics of the M68 Close Combat Optic?
    • A. 

      Magnifies the target to make it appear up to 4 times closer

    • B. 

      Projects a laser beam onto the target

    • C. 

      Does not require the red aiming dot to be aligned in the center of the scope

    • D. 

      Is not effective for aiming beyond 75 m