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Electrical Quizzes & Trivia

Electrical


Questions and Answers
  • 1. 
    Any channel designed to enclose and loosely hold electric conductors; may be of metal or of an insulating material; various types include rigid conduit, flexible metallic conduit, nonmetallic conduit, metallic tubing, under-floor raceways, cellular floor raceways, surface metal raceways, structural raceways, wireways and busways, and auxiliary gutters or moldings. 
    • A. 

      Race way

    • B. 

      Wire track

    • C. 

      Wire tubing

    • D. 

      Race track

  • 2. 
    1.  Electrical term “raceway” applied to:
    • A. 

      A. a channel system in carrying

    • B. 

      B. where electric cars pass

    • C. 

      C. conductor of heavy load energy

    • D. 

      D. a grouping of transformer

  • 3. 
    1.  To bring up voltage, we use:
    • A. 

      A. step-down transformer

    • B. 

      B. voltage booster

    • C. 

      C. step-two transformer

    • D. 

      D. step-up transformer

  • 4. 
    1.  To bring down voltage, we use:
    • A. 

      A. step-down transformer

    • B. 

      B. voltage booster

    • C. 

      C. step-two transformer

    • D. 

      D. step-up transformer

  • 5. 
    1.  The electric power unit expressed in thousand unit is called
    • A. 

      A. kips

    • B. 

      B. megawatt

    • C. 

      C. kilowatt

    • D. 

      D. kilohertz

  • 6. 
    It is a switch in which a lever or knob, moving through a small arc, causes the contacts to  open or close an electric circuit
    • A. 

      Float switch

    • B. 

      Knife switch

    • C. 

      Toggle switch

    • D. 

      Mercury switch

  • 7. 
    A rubber or plastic washer inserted in a hole in a metal part to prevent grounding of a wire passing through the hole
    • A. 

      Insulator

    • B. 

      Bushing

    • C. 

      Shield

    • D. 

      Grommet

  • 8. 
    It is a switch in which a hinge copper blade is placed between 2 contact plates
    • A. 

      Float switch

    • B. 

      Knife switch

    • C. 

      Toggle switch

    • D. 

      Mercury switch

  • 9. 
    What type of building wire has a trade name of Moisture and Heat Resistant Thermoplastic used for dry and wet locations
    • A. 

      TW

    • B. 

      MTW

    • C. 

      THHN

    • D. 

      THW

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