3EO51Q Practice Test

Listed below are sample questions for 3EO51Q from our database. Register now to start taking tests for this AFSC! We have 374 questions currently in the database for this category.

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  • 1 . 38. (414) Which airfield lights have yellow filters installed for the last 2,000 feet of runaway?
    Runway edge lights
  • 2 . 66. (237) What meter should you use to make a structure-to-electrolyte measurement?
    High-resistance voltmeter
  • 3 . 14. (603) When leveling and aiming a PAPI unit, what do you do first?
    Level the unit from side to side by adjusting the unit’s two front knobs
  • 4 . 16. (407) What term describes an underground cable that is brought up through a conduit and attached to an overhead line?
    Riser
  • 5 . 119. (048) When replacing a pole, how many feet above the pole do you raise the auxiliary arm?
    3 to 4 feet
  • 6 . 108. (044) What must the electrician do before working on deenergized lines?
    Test and ground the lines
  • 7 . When can the secondary of a current transformer be opened?
    When the primary is deenergized
  • 8 . 26. (607) Besides conductor size, what is another important factor to consider when reducing voltage drop in an electrical circuit?
    Circuit distance.
  • 9 . 59. (232) Where does stray current corrosion cause greatest damage?
    Where it exits a structure.
  • 10 . 47. (018) How must rubber blankets be stored?
    Flat or rolled in blanket canister.