CDC 2w051b, Volume 2 Ure Questions

100 Questions | Total Attempts: 276

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I. Y. A. A. Y. A. S, 2W051B Study UREs. Work hard. Be what your people need you to be.


Questions and Answers
  • 1. 
    What is a requirement for military explosives?
    • A. 

      The raw materials must be cheap

    • B. 

      The raw materials must be nonhygroscopic

    • C. 

      The raw materials must be common to America

    • D. 

      The raw materials must be vital to the war effort

  • 2. 
    The rate of transformation for high explosives is between
    • A. 

      3,200 and 25,000 feet per second

    • B. 

      3,200 and 28,000 feet per second

    • C. 

      3,200 and 31,000 feet per second

    • D. 

      3,200 and 32,000 feet per second

  • 3. 
    The tendancy of a substance to burn with a rapid and sparkling combustion is called
    • A. 

      Detonation

    • B. 

      Disposition

    • C. 

      Deflagration

    • D. 

      Decomposition

  • 4. 
    What is the final effect of deflagration under confinement?
    • A. 

      Burning

    • B. 

      Detonation

    • C. 

      Volatilization

    • D. 

      Explosive reactivity

  • 5. 
    What does a booster do?
    • A. 

      Detonates the fuze

    • B. 

      Deonates the main charge

    • C. 

      Transmits energy from one detonating component to the next

    • D. 

      Controls the delay in the functioning of fuze explosive train

  • 6. 
    How can you achieve an airburst with a general-purpose bomb?
    • A. 

      Use a nondelay delay

    • B. 

      Use a time action HE train

    • C. 

      With a delay action HE train

    • D. 

      With a superquick action HE train

  • 7. 
    What are the basic components of an explosive train?
    • A. 

      Fuze, detonator, booster, and bursting charge

    • B. 

      Detonator, booster and a bursting charge

    • C. 

      Fuze, booster, and a bursting charge

    • D. 

      Detonator and a bursting charge

  • 8. 
    In the explosive train, where can you find the delay?
    • A. 

      Behind the detonator

    • B. 

      Ahead of the detonator

    • C. 

      Behind the burster charge

    • D. 

      Ahead of the burster charge

  • 9. 
    What effect does more damage then the framentation effect of a specific bomb?
    • A. 

      Detonation

    • B. 

      Penetration

    • C. 

      Heat

    • D. 

      Blast

  • 10. 
    How can you increase the penetration effect of a shaped charge?
    • A. 

      Decrease the standoff distance

    • B. 

      Increase the standoff distance

    • C. 

      Decrease the explosive charge

    • D. 

      Increase the explosive charge

  • 11. 
    For what do we use a shaped charge?
    • A. 

      To produce an explosive penetration of a solid object

    • B. 

      Ignite rocket motors equipped with electric squibs

    • C. 

      No practical application in the munitions field

    • D. 

      Bring down walls and collapse roofs

  • 12. 
    The penetrating action fo a shaped charge is the result of the
    • A. 

      Size of the burster charge

    • B. 

      Type and amount of charge

    • C. 

      Density and thickness of the target

    • D. 

      Shock wave and a jet of dense gas

  • 13. 
    Besides thier purpose, what else do we use to classify rockets?
    • A. 

      Warhead size

    • B. 

      Warhead filler

    • C. 

      Warhead color

    • D. 

      Warhead shape

  • 14. 
    How do we identify practice warheads?
    • A. 

      By the bronze body and white markings

    • B. 

      By a light blue body and white markings

    • C. 

      By the olive-drab body and white markings

    • D. 

      By a light green background with light red letters and yellow band.

  • 15. 
    Where do you stand while loading a rocket into a launcher?
    • A. 

      The rear of the launcher

    • B. 

      The front of the launcher

    • C. 

      Either side of the launcher

    • D. 

      Either the front or rear of the launcher

  • 16. 
    What is the hazard associated with a flechette warhead?
    • A. 

      Framentation

    • B. 

      Smoke

    • C. 

      Blast

    • D. 

      Fire

  • 17. 
    The main types of fuze action are impact, time and
    • A. 

      Electrical

    • B. 

      Hydraulic

    • C. 

      Proximity

    • D. 

      Inertia

  • 18. 
    Where is a proximity fuze placed on the bomb?
    • A. 

      Nose only

    • B. 

      Tail only

    • C. 

      Nose or tail

    • D. 

      Between the lugs

  • 19. 
    When is a bomb fuze considered to be armed?
    • A. 

      Imediately after the bomb is released from the aircraft

    • B. 

      When the next normal event will initiate the battery-firing device

    • C. 

      When the next normal event will initiate a functioning of the fuze

    • D. 

      When the fuze is installed into the fuze well of the bomb and the safety pins are pulled

  • 20. 
    In an electronically timed fuze, what replaces the arming vanes used in mechanically timed fuzes?
    • A. 

      Battery-firing device

    • B. 

      Arming lanyard assembly

    • C. 

      Electric charging assembly

    • D. 

      Electronically timed sensor

  • 21. 
    The design of which safety feature is to prevent movement of the arming heads, arming stems and strikers while the fuze is being handled?
    • A. 

      Seal wires

    • B. 

      Cotter pins

    • C. 

      Safety blocks

    • D. 

      The "detonator safe" feature

  • 22. 
    How do you set the firing delay times in an M904 mechanically timed nose fuze?
    • A. 

      Change the delay element

    • B. 

      By rotating the timing lock

    • C. 

      By adjusting the calibrated dial

    • D. 

      The firing delay time is fixed and cannot be changed

  • 23. 
    The FMU-54-series fuzes are used in
    • A. 

      Laser-guided bomb series only

    • B. 

      BLU-109/B-series guided bombs

    • C. 

      MK80 and M series with conical fins only

    • D. 

      Retarder equipped general-purpose bombs

  • 24. 
    With electrical fuzes, what is used in place of arming wire?
    • A. 

      Nothing

    • B. 

      Bungee cord

    • C. 

      Battery-firing device

    • D. 

      Target-detecting device

  • 25. 
    Which sensor is a radio-frequency radar ranging system used with the SUU-64/B and the SUU-65/B dispensers?
    • A. 

      FZU-39/B

    • B. 

      FMU-56/B

    • C. 

      FMU-214/B

    • D. 

      FMU-110/B

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