# Digital Electronics - Combinational Logic Analysis

### Exercise :: Combinational Logic Analysis - General Questions

21.

Implementation of the Boolean expression results in ________.

 A. three AND gates, one OR gate B. three AND gates, one NOT gate, one OR gate C. three AND gates, one NOT gate, three OR gates D. three AND gates, three OR gates

Explanation:

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22.

One possible output expression for an AND-OR-Invert circuit having one AND gate with inputs A, B, and C and one AND gate with inputs D and E is ________.

 A. B. C. D.

Explanation:

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23.

How many 2-input NOR gates does it take to produce a 2-input NAND gate?

 A. 1 B. 2 C. 3 D. 4

Explanation:

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24.

A logic circuit with an output consists of ________.

 A. two AND gates, two OR gates, two inverters B. three AND gates, two OR gates, one inverter C. two AND gates, one OR gate, two inverters D. two AND gates, one OR gate