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 . Why must ducts that terminate in a building be sealed?
    To prevent gases and rodents from entering a building
  • 2 . What is the configuration of an induction-voltage regulator’s primary and secondary windings?
    The primary is in shunt and the secondary is in series
  • 3 . 121. (049) The act of tying a tagline to each outside conductor with a bowline knot and pulling the conductors out of the work area we call
    tagging out
  • 4 . 64. (616) How many 120/208 volts alternating current output circuits can the secondary distribution center provide?
  • 5 . 42. (612) What are the size and type of lamps used on the telescoping light set portable light stands?
    500-watt quartz
  • 6 . 19. (007) What do you use to clean the arc interrupters of an air-break switch?
    Cloth or light sanding
  • 7 . 59. (615) You should bury primary cables to a depth of at least
    18 inches
  • 8 . 58. (615) What is the conductor size and insulation value of the basic expeditionary airfield resources high-voltage electrical cable?
    #1/0, 5 kV
  • 9 . What type transformer is used in a vault?
    Subway transformer
  • 10 . 26. (607) Besides conductor size, what is another important factor to consider when reducing voltage drop in an electrical circuit?
    Circuit distance.