Electricty, Circuits & Electrical Equipment Quiz

26 Questions | Total Attempts: 316

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Electricty, Circuits & Electrical Equipment Quiz

Play our online quiz to test your knowledge and learn interesting information about electricity, equipment, conductors, electrical injuries, etc.


Questions and Answers
  • 1. 
    Grounding conductors are usually black in colour.
    • A. 

      True

    • B. 

      False

  • 2. 
    What should be the cuff length of leather protector gloves worn over rubber insulating gloves while working with electrical parts?
    • A. 

      Same as Rubber insulating Gloves

    • B. 

      Longer than Rubber insulating Gloves

    • C. 

      Shorter than Rubber insulating Gloves

    • D. 

      Non of this

  • 3. 
    Only ___________________ workers can repair exposed electrical equipment.
    • A. 

      Insulated

    • B. 

      Protected by PPE

    • C. 

      Qualified and Trained

    • D. 

      Unqualified

  • 4. 
    Like PPE (Personal Protective Equipment), IPE (Insulating Protective Equipment) is also worn on the body
    • A. 

      True

    • B. 

      False

  • 5. 
    Why are rubber insulating gloves filled with air?
    • A. 

      To conduct air test

    • B. 

      To Make them Lighter

    • C. 

      To see how well they expand

    • D. 

      Non of this

  • 6. 
    Which type of fire extinguisher will only make the fire worse?
    • A. 

      Class A

    • B. 

      Class B

    • C. 

      Class C

    • D. 

      Class D

  • 7. 
    What is the maximum current level a human can withstand without getting injured?
    • A. 

      1 mA

    • B. 

      15 mA

    • C. 

      100-300 mA

    • D. 

      Option 4

  • 8. 
    Avoid damp and wet areas when working with electricity.
    • A. 

      True

    • B. 

      Not True

  • 9. 
    Which type of fire extinguisher(s) is or are also acceptable to put out an electrical fire?
    • A. 

      Class B

    • B. 

      Class C

  • 10. 
    One of the main functions of personnel protective grounds is to provide a -------------- impedance path for a short circuit
    • A. 

      High

    • B. 

      Low

    • C. 

      Smooth

  • 11. 
    The minimum allowable work space around electrical equipment is ________ inches deep.
    • A. 

      30

    • B. 

      46

    • C. 

      28

    • D. 

      36

  • 12. 
    OSHA requires the testing of a volt meter after a voltage test on voltage above______.
    • A. 

      120V

    • B. 

      208v

    • C. 

      227v

    • D. 

      600v

  • 13. 
    One of the three generally recognized hazards of electrical work is--------------.
    • A. 

      Cuts

    • B. 

      Fall

    • C. 

      Arc Flash

    • D. 

      Concussion

  • 14. 
    Gloves used for electrical protection must be electrically tested every--------
    • A. 

      1 Month

    • B. 

      1 Year

    • C. 

      6 Month

    • D. 

      Never

  • 15. 
    Electrical injuries are commonly caused by:
    • A. 

      Unsafe equipment or installations

    • B. 

      An unsafe environment

    • C. 

      Unsafe work practices.

    • D. 

      All of the above

  • 16. 
    Current flow from hand to hand is called:
    • A. 

      Step potential

    • B. 

      Touch potential

    • C. 

      Amperage

    • D. 

      None of the above.

  • 17. 
    Broken or damaged tools should be labeled with DAMAGED DO NOT USE. The instructor should be notified so that the tool may be repaired or replaced.
    • A. 

      True

    • B. 

      False

  • 18. 
    Cord and plug equipment should have a three prong plug or be double insulated.
    • A. 

      True

    • B. 

      False

  • 19. 
    Which law does not cover the use of electricity at work?
    • A. 

      Health and Safety at Work etc. Act 1974

    • B. 

      The Provision and use of Work Equipment Regulation 1998

    • C. 

      The Management of Health and Safety at work Regulations 1999

    • D. 

      The Electricity at Work Regulation 1989

  • 20. 
    Grounding conductors are usually  in color
    • A. 

      Red

    • B. 

      Blue

    • C. 

      Green

    • D. 

      Black

  • 21. 
    Which one of the following would be classified as an explosive atmosphere?
    • A. 

      The area near a fuel tank

    • B. 

      The area under a power line

    • C. 

      An office

    • D. 

      A garden

  • 22. 
    What are the minimum distance workers must maintain between conductive materials and overhead Power Lines up to 50kv
    • A. 

      10 feet

    • B. 

      20 feet

    • C. 

      30 feet

    • D. 

      As far as possible

  • 23. 
    Which of these can be used as insulating live-line tools for electrical protection?
    • A. 

      Shotgun Sticks

    • B. 

      Switchsticks

    • C. 

      Hotsticks

    • D. 

      All of the above

  • 24. 
    Who is allowed to open live electrical panels?
    • A. 

      Any Ships engineer

    • B. 

      A qualified electrical person

    • C. 

      A qualified electrical person wearing appropriate PPE

  • 25. 
    In which circumstances are contact with electricity most likely to be harmful
    • A. 

      Touching a 24 V dc battery terminal with hand

    • B. 

      Using a faulty 110v ac power tool in a damp environment

    • C. 

      Using a faulty 110v ac power tool with RCD

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