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Home Digital Electronics Boolean Algebra and Logic Simplification See What Others Are Saying!
  • Question
  • The commutative law of addition and multiplication indicates that:


  • Options
  • A. we can group variables in an AND or in an OR any way we want
  • B. an expression can be expanded by multiplying term by term just the same as in ordinary algebra
  • C. the way we OR or AND two variables is unimportant because the result is the same
  • D. the factoring of Boolean expressions requires the multiplication of product terms that contain like variables

  • Correct Answer
  • the way we OR or AND two variables is unimportant because the result is the same 


  • More questions

    • 1. Which type of ROM has to be custom built by the factory?

    • Options
    • A. ROM
    • B. mask ROM
    • C. EPROM
    • D. EEPROM
    • Discuss
    • 2. The RST pin requires a HIGH to reset the 8051 microcontroller.

    • Options
    • A. True
    • B. False
    • Discuss
    • 3. How many clock pulses will be required to completely load serially a 5-bit shift register?

    • Options
    • A. 2
    • B. 3
    • C. 4
    • D. 5
    • Discuss
    • 4. A data selector is also called a demultiplexer.

    • Options
    • A. True
    • B. False
    • Discuss
    • 5. The ________ statement evaluates the variable status.

    • Options
    • A. IF/THEN
    • B. IF/THEN/ELSE
    • C. CASE
    • D. ELSIF
    • Discuss
    • 6. A NAND gate output is LOW only if all the inputs are HIGH.

    • Options
    • A. True
    • B. False
    • Discuss
    • 7. Edge-triggered flip-flops can be identified by the triangle on the clock input.

    • Options
    • A. True
    • B. False
    • Discuss
    • 8. How many select lines would be required for an 8-line-to-1-line multiplexer?

    • Options
    • A. 2
    • B. 3
    • C. 4
    • D. 8
    • Discuss
    • 9. A(n)________ is not a functional unit of a computer.

    • Options
    • A. input unit
    • B. memory unit
    • C. modem
    • D. control unit
    • Discuss
    • 10. A modulus-12 ring counter requires a minimum of ________.

    • Options
    • A. 10 flip-flops
    • B. 12 flip-flops
    • C. 6 flip-flops
    • D. 2 flip-flops
    • Discuss


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