Day 1 Euic

50 Questions

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Day 1 Euic

Questions and Answers
  • 1. 
     When using resistorized detonators the maximum stray voltage allowed is_______ millivolts, if a stray current survey is performed and the stray current is below______ milliampre and you did all the necessary attempts to reduce the stray voltage below_____millivolt
  • 2. 
     When using electrically initiated detonators signs reading "Danger Explosives: Turn off Two way radios" must be posted at every entrance and exit location.
    • A. 

      True

    • B. 

      False

  • 3. 
     When doing a stray current test you must add the D.C. stray current to the A.C. stray current
    • A. 

      True

    • B. 

      False

  • 4. 
     When checking stray voltage, you must check for both A.C. and D.C. voltage.
    • A. 

      True

    • B. 

      False

  • 5. 
     When calculating stray voltage you must subtract negative values from positive values to determine the total DC stray voltage.
    • A. 

      True

    • B. 

      False

  • 6. 
     Welding operations may continue as long as it does not contact the wellhead or any structure that touches the wellhead.
    • A. 

      True

    • B. 

      False

  • 7. 
     Warning signs reading “Danger-Explosives” or the equivalent are not required to be displayed at the immediate loading site when using resistorized Detonators
    • A. 

      True

    • B. 

      False

  • 8. 
     There are _______  types of Primary explosive chemicals
  • 9. 
     The term that is used to describe the ability of an explosive to survive for long periods of time or withstand high temperatures.  
    • A. 

      Sensitivity

    • B. 

      Stability

    • C. 

      Deflagration

    • D. 

      Detonator

  • 10. 
     The RED line of detonators may be used in enviroments with stray voltage condition up to?
    • A. 

      250mV

    • B. 

      120V

    • C. 

      2V

    • D. 

      200A

  • 11. 
     The maximum permissable stray voltage for wireline operations is?
    • A. 

      250mV

    • B. 

      .25V

    • C. 

      2V

    • D. 

      2.5V

  • 12. 
     The grounding cables must be connected _____________ the stray voltage test?
    • A. 

      During

    • B. 

      Before

    • C. 

      After

  • 13. 
     The first thing that the EUIC should do when arriving at location is?
    • A. 

      Conduct a stray voltage test

    • B. 

      Begin rigging up

    • C. 

      Meet with the client and conduct operations review

    • D. 

      Hold a safety meeting

  • 14. 
     The EUIC must document the results of the stray voltage test?
    • A. 

      True

    • B. 

      False

  • 15. 
     It is acceptable to perform that stray voltage test with a Simpson meter.
    • A. 

      True

    • B. 

      False

  • 16. 
     If stray voltage is greater than 250mV the EUIC should.  
    • A. 

      Call for red detonators

    • B. 

      Use resistorized detonators

    • C. 

      Attempt to eliminate the source of voltage and perform a stray current test

    • D. 

      Connect the grounding clamps and perform the stray voltage test again

  • 17. 
     For a person to be initially qualified as an EUIC to arm and initiate Explosive Devices with electric detonators they must;
    • A. 

      The person must complete Explosive Safety Course HEXPL01895 8-Hour Course.

    • B. 

      Must attend PSL specific Course (Explosive User In Charge)

    • C. 

      Must complete annual Explosive Refresher Course HEXPL02858

    • D. 

      Must be certified by the LESO, FSQC, SC on a well site audit

    • E. 

      Only answer (B) and (C) is correct

    • F. 

      Answers A, B, and D are correct.

  • 18. 
     Explosive signs should be placed a minimunm of _____________ from all entrances and exits to location
    • A. 

      1000 feet

    • B. 

      1000 Meters

    • C. 

      100 feet

    • D. 

      200 feet

  • 19. 
     Detonation of explosive chemicals will produce a shockwave ________ than the ________ of sound in the surrounding medium.
  • 20. 
     Conduct stray voltage test after connecting the grounding cables to ensure that stray voltage is below 2 volts
    • A. 

      True

    • B. 

      False

  • 21. 
     Api RP 67 states that all voltages above ___________ must be investigated and eliminated.  
    • A. 

      .25V

    • B. 

      2.5V

    • C. 

      250V

    • D. 

      .025V

  • 22. 
     Any meter capable of measuring voltage and current may be used to check an explosive device?
    • A. 

      True

    • B. 

      False

  • 23. 
     All detonators should be stored in __________ unless being immediatly used?
    • A. 

      Type III magazine

    • B. 

      Detonator safety tube

    • C. 

      Locked storage box

  • 24. 
     A stray voltage test must be conducted after connecting the ground clamps.
    • A. 

      True

    • B. 

      False

  • 25. 
    Which of the following must be turned off during the use of core guns?  
    • A. 

      Ship to shore

    • B. 

      Two way radios

    • C. 

      Satellite communications

    • D. 

      All of the above

    • E. 

      Only A and B

    • F. 

      Only D

  • 26. 
    Use grounding cables/clamps to electrically bond the electric wireline unit to the casing/ wellhead/blowout preventer and the rig (support the top sheve). The grounding clamp/assembly-to-unit resistance must be 1 ohm or less, and must remain at this level for the duration of the job. Check all auxiliary generators for proper grounding.  
    • A. 

      True

    • B. 

      False

  • 27. 
    Turn off all impressed (Powered) electrical cathodic protection systems from rig up of explosive operations to rig down when using resistorized detonators.Turn off all impressed (Powered) electrical cathodic protection systems from rig up of explosive operations to rig down when using resistorized detonators. 
    • A. 

      True

    • B. 

      False

  • 28. 
    Three possible sources of stray voltage may be?
    • A. 

      Frayed wires

    • B. 

      Bad ground wiring

    • C. 

      Welding

    • D. 

      Cathodic protection

  • 29. 
    The  grounding system must have less than ________ of resistance 
    • A. 

      1V

    • B. 

      .1 Ohm

    • C. 

      1A

    • D. 

      1 Ohm

  • 30. 
    The term that is used to describe the ease with which an explosive can be initiated is  
    • A. 

      Sensitivity

    • B. 

      Stability

    • C. 

      Deflagration

    • D. 

      Detonator

  • 31. 
    The possessions or use of non-resistorized electrical explosive initiators is permitted in oversea operations because of local government laws
    • A. 

      True

    • B. 

      False

  • 32. 
    The maximum amount of explosive that may be stored indoors is  
    • A. 

      50lbs

    • B. 

      1000lbs

    • C. 

      As determined by the Table of Distance

    • D. 

      75lbs

  • 33. 
    Stray voltage test is conducted _________ to rig up equipment  
  • 34. 
    Stray voltage test is conducted between the __________ and ____________ and all metallic objects that may come in contact with the wireline.  
    • A. 

      Logging unit and well head

    • B. 

      Well head and rig

    • C. 

      Wellhead and catwalk

    • D. 

      Rig and catwalk

  • 35. 
    Stray current measurements should be performed with the approved Blaster’s meter set to the 200mV scale 
    • A. 

      True

    • B. 

      False

  • 36. 
    Reaction_________ is the velocity at which the reaction proceeds through the reacting medium whereas reaction _________ is the degree  at which the reacting medium is consumed.  
  • 37. 
    Prior to rig up at the wellsite a _________ ________ should be done to discuss the operational sequence of events; The EUIC must be identified at this time.  
  • 38. 
    Once an explosive has been initiated, it cannot be  
  • 39. 
    Maximum permissible stray voltage when stray current is below 50mA if using resistorized detonators is  
    • A. 

      10ohm

    • B. 

      1V

    • C. 

      2mV

    • D. 

      2V

  • 40. 
    Maximum permissible stray current for use with conventional Resistorized detonators is? 
    • A. 

      250mV

    • B. 

      .25V

    • C. 

      50Mv

    • D. 

      50mA

  • 41. 
    It is acceptable to cut detonating cord with scissors if you do it slowly  
    • A. 

      True

    • B. 

      False

  • 42. 
    Initiation is the process whereby the chemical _________ leading to an _________is started. 
  • 43. 
    If the stray voltage is in excess of _________ and stray current in excess of ________ then a RED detonators must be used? 
    • A. 

      250mV and 800mA

    • B. 

      .25V and .5A

    • C. 

      250mV and 50mA

    • D. 

      .5V amd .25A

  • 44. 
    Explosives supply the necessary ________ to penetrate the casing, cement and formation  
  • 45. 
    Explosive that must be confined to do useful work are: 
  • 46. 
    Explosive chemicals are the only means of creating an explosive 
    • A. 

      True

    • B. 

      False

  • 47. 
    Combustion and deflagration are fast, high pressure reactions whereas detonation is a slow low pressure reaction.  
    • A. 

      True

    • B. 

      False

  • 48. 
    At what point during the rig-up process does the EUIC perform the stray voltage test  
    • A. 

      Before rigging up all equipment

    • B. 

      After rigging up all equipment

  • 49. 
    All stray voltage regardless of value should be eliminated if possible/  
    • A. 

      True

    • B. 

      False

  • 50. 
    A stray current test is to be conducted if stray voltage is greater than 250mV and efforts to eliminate or reduce below 250mV are unsuccessful.  
    • A. 

      True

    • B. 

      False