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# Electronics - Logic Circuit Simplification

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### Exercise

"Actions speak louder than words."
- (Proverb)
1.

Which statement below best describes a Karnaugh map?

 A. It is simply a rearranged truth table. B. The Karnaugh map eliminates the need for using NAND and NOR gates. C. Variable complements can be eliminated by using Karnaugh maps. D. A Karnaugh map can be used to replace Boolean rules.

2.

Which of the examples below expresses the commutative law of multiplication?

 A. A + B = B + A B. A • B = B + A C. A • (B • C) = (A • B) • C D. A • B = B • A

3.

The Boolean expression is logically equivalent to what single gate?

 A. NAND B. NOR C. AND D. OR

4.

The observation that a bubbled input OR gate is interchangeable with a bubbled output AND gate is referred to as:

 A. a Karnaugh map B. DeMorgan's second theorem C. the commutative law of addition D. the associative law of multiplication

5.

The systematic reduction of logic circuits is accomplished by:

 A. symbolic reduction B. TTL logic C. using Boolean algebra D. using a truth table