Electronics Engineering

10 Questions

Settings
Please wait...
Electronics Engineering

Priority Level: High (ECE) & Medium (ECT)


Questions and Answers
  • 1. 
    Of the following substances, the best conductor is
    • A. 

      Air

    • B. 

      Copper

    • C. 

      Iron

    • D. 

      Salt water

  • 2. 
    The atomic number of an element is determined by?
    • A. 

      the number of neutrons

    • B. 

      the number of protons

    • C. 

      the number of neutrons plus the number of protons

    • D. 

      the number of electrons

  • 3. 
    The atomic weight of an element is approximately determined by?
    • A. 

      the number of neutrons

    • B. 

      the number of protons

    • C. 

      the number of neutrons plus the number of protons

    • D. 

      the number of electrons

  • 4. 
    Suppose there is an atom of oxygen, containing eight protons and eight neutrons in the nucleus, and two neutrons are added to the nucleus. What is the resulting atomic weight?
    • A. 

      18

    • B. 

      8

    • C. 

      10

    • D. 

      16

  • 5. 
    An ion
    • A. 

      Is electrically neutral

    • B. 

      Has positive electric charge

    • C. 

      Has negative electric charge

    • D. 

      Can have either a positive or negative charge

  • 6. 
    An isotope
    • A. 

      Is electrically neutral

    • B. 

      Has positive electric charge

    • C. 

      Has negative electric charge

    • D. 

      Can have either a positive or negative charge

  • 7. 
    A molecule
    • A. 

      Can consist of a single atom of an element

    • B. 

      Always contains two or more elements

    • C. 

      Always has two or more atoms

    • D. 

      Is always electrically charged

  • 8. 
    In a compound,
    • A. 

      There can be a single atom of an element

    • B. 

      There must always be two or more elements

    • C. 

      The atoms are mixed in with each other but not joined

    • D. 

      There is always a shortage of electrons

  • 9. 
    An electrical insulator can be made a conductor
    • A. 

      By heating it

    • B. 

      By cooling it

    • C. 

      By ionizing it

    • D. 

      By oxidizing it

  • 10. 
    Of the following substances, the worst conductor is
    • A. 

      Air

    • B. 

      Copper

    • C. 

      Iron

    • D. 

      Salt water