Electronics DC Circuits Fall Semester Exam

23 Questions | Total Attempts: 395

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Electronics Quizzes & Trivia

Complete the exam independantlty and quietly . Raise your hand when you are finished so I can record your grade in the book.


Questions and Answers
  • 1. 
    What type of circuit combines one or more series circuits with one or more parallel circuits?
    • A. 

      Simple

    • B. 

      Series

    • C. 

      Series-Parallel

    • D. 

      Parellel

  • 2. 
    The first step in calculating voltage drops in a series-parallel circuit is to determine _____.  
    • A. 

      The resistance of the parallel resistors

    • B. 

      The resistance of the series resistors

    • C. 

      Total current

    • D. 

      Total voltage

  • 3. 
    1. Ohm�s Law states that current is _____.
       
    • A. 

      Inversely proportional to power

    • B. 

      Directly proportional to voltage

    • C. 

      Inversely proportional to voltage

    • D. 

      Directly proportional to resistance

  • 4. 
    What is the unit of measure for power?
    • A. 

      Amphere

    • B. 

      Volt

    • C. 

      Watt

    • D. 

      Ohm

  • 5. 
    What symbol represents power?
    • A. 

      P

    • B. 

      V

    • C. 

      I

    • D. 

      R

  • 6. 
    What happens to current when voltage increases?
    • A. 

      Decreases

    • B. 

      Increases

    • C. 

      Remains the same

  • 7. 
     Current in a series circuit
    • A. 

      Varies

    • B. 

      Increases at different points

    • C. 

      Decreases at different points

    • D. 

      Is the same at all points

  • 8. 
    What effect on total current flow will a shorted series component have in a series-parallel circuit?
    • A. 

      Total current will stop

    • B. 

      There will be no effect

    • C. 

      Total current will increase

    • D. 

      Total current will decrease

  • 9. 
    What is the fourth step of the troubelshooting procedure?
    • A. 

      Check the setup

    • B. 

      Check the results

    • C. 

      Analyze the circuit

    • D. 

      Calculate and measure values

  • 10. 
    What would cause a component to drop the applied voltage?
    • A. 

      A decrease in value

    • B. 

      An increase in value

    • C. 

      A short

    • D. 

      An open

  • 11. 
    Electrical shock occures when an individual touches
    • A. 

      Electrical equipment

    • B. 

      Ground and circuit

    • C. 

      Elecrtrical components

    • D. 

      Power supplies

  • 12. 
    In the event of electrical shock, the rescuer should first
    • A. 

      Perform CPR

    • B. 

      Call for medical help and remove the victim from the electrical source

    • C. 

      Check for breathing

    • D. 

      Call for help

  • 13. 
    Burns caused by electrical current flowing through the body tissure and bones are called
    • A. 

      Arc Burns

    • B. 

      Thermal Contact burns

    • C. 

      Electrical Burns

    • D. 

      Shock Burns

  • 14. 
    Subtract (4M) - (2M)
    • A. 

      2M

    • B. 

      4M

    • C. 

      6M

    • D. 

      8M

  • 15. 
    An electrostatic discharge passing through an ESD could cause catastophic failure, major electrical characteristic changes, or performance degradation in the device.
    • A. 

      True

    • B. 

      False

  • 16. 
    What keeps an electron in orbit around the nucleaus?
    • A. 

      More electrons than protons

    • B. 

      Electrostatic force and electrons spinning

    • C. 

      Less protons than electrons

    • D. 

      Electrostatic force and protons spinning

  • 17. 
    Convert .00004 to metric prefix
    • A. 

      40 Micro

    • B. 

      40 milli

    • C. 

      4 micro

    • D. 

      4 milli

  • 18. 
    Convert 10000 to metric prefix
    • A. 

      10 kilo

    • B. 

      10 mega

    • C. 

      100 kilo

    • D. 

      100 mega

  • 19. 
    What causes an overlaod condidtion when you are measuring resistance?
    • A. 

      Range switch set too high for resistance to be measured

    • B. 

      Range seitch set too low for resistance to be measured

    • C. 

      Test leads connectred to multimeter incorrectly

    • D. 

      Incorrect function selected for value being measured

  • 20. 
    How does resistance affect current?
    • A. 

      Less resistance=less current

    • B. 

      More resistance=less current

    • C. 

      More resistance=more current

    • D. 

      Resistance does not affect current

  • 21. 
    Which of the following answers best describe a normally closed switch?
    • A. 

      A switch that cannot be opened

    • B. 

      A switch that once closed,remains closed until it is unlatched by voltage

    • C. 

      A switch that remains open until manually closed

    • D. 

      A switch that remains closed until manually opened

  • 22. 
    Which switch rotates on a shaft
    • A. 

      Slide

    • B. 

      Toggle

    • C. 

      Rotary

    • D. 

      Push Button

  • 23. 
    The screwdriver is used for
    • A. 

      Removing cabiunet cover fasteners

    • B. 

      Prying open paint cans

    • C. 

      Driving Nails

    • D. 

      Dressing Cable