Arduino Quiz #2: Hardware

11 Questions | Total Attempts: 820

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Arduino Quiz #2: Hardware - Quiz

A quiz covering some of the Electronics Hardware issues relevant to Arduino users.


Questions and Answers
  • 1. 
    The circuit show below is used for questions 1-4: A user has connected the circuits above. What is wrong with the circuit connected to pin D2?
    • A. 

      There is no current limiting resistor for the LED.

    • B. 

      Nothing is wrong.

    • C. 

      The LED is inserted backwards.

    • D. 

      Pin D2 may not be used to drive LEDs.

    • E. 

      You should not use an orange wire to connect a red LED.

  • 2. 
    Using the circuits show in Question 1, What is wrong with the circuits connected to pin D3?
    • A. 

      The 5V output of an Arduino Uno is insufficient for a series connection of three LEDs

    • B. 

      The resistor value is too high for this combination of LEDs.

    • C. 

      The resistor value is too low for this combination of LEDs.

    • D. 

      Nothing is wrong with the circuit.

    • E. 

      None of the above

  • 3. 
    Using the circuits show in Question 1: What is wrong with the circuits connected to pin D4?  
    • A. 

      The switch needs a pull-down resistor.

    • B. 

      Pin D4 can not be used as a switch input.

    • C. 

      Nothing is wrong with the circuit.

    • D. 

      Switches should have a current limiting resistor.

    • E. 

      None of the above

  • 4. 
    Using the circuits show in Question 1 What is wrong with the circuits connected to pin D5?
    • A. 

      The LED is shorted out.

    • B. 

      The current-limited resistor for the LED has the wrong value.

    • C. 

      Pin D5 should be reserved for Serial

    • D. 

      Nothing is wrong with the circuit.

    • E. 

      None of the above

  • 5. 
    What is wrong with the circuit shown above?  (check all that apply)
    • A. 

      The LED is inserted backwards.

    • B. 

      The Arduino cannot operate from a 9V battery.

    • C. 

      The resistor value is wrong.

    • D. 

      The Arduino is unpowered because the protoboard power rails are not fully connected.

    • E. 

      Pin D8 can not be used to drive an LED.

  • 6. 
    A user has wired up an Arduino Protoshield as shown above. Which of the schematics below match the wiring?
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      None of the above

  • 7. 
    The image below is used for several questions. In the circuit shown above, what is the function of components R15 and R16?
    • A. 

      Current Limiting Resistor.

    • B. 

      Pull-up resistor.

    • C. 

      Pull-down resistor.

    • D. 

      None of the above

  • 8. 
    In the image from the question above, what is the function of D8 and D9?
    • A. 

      Kickback prevention diode

    • B. 

      Indicator LED

    • C. 

      Current limiting device

    • D. 

      Light Sensor

    • E. 

      None of the above

  • 9. 
    In the image above, what is the function of R14?
    • A. 

      Current limiting resistor

    • B. 

      Pull-up resistor

    • C. 

      Pull-down resistor

    • D. 

      Light sensor

    • E. 

      None of the above

  • 10. 
    (This is the same image as before; it's repeated for better grouping with the questions) In the image above, what is the function of R17?
    • A. 

      Current limiting resistor

    • B. 

      Pull-up resistor

    • C. 

      Pull-down resistor

    • D. 

      Light Sensor

    • E. 

      None of the above

  • 11. 
    In the image above, what is the function of D10?
    • A. 

      Indicator LED

    • B. 

      Kickback prevention diode

    • C. 

      Pull-up resistor

    • D. 

      Light sensor

    • E. 

      None of the above

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