MCQOPTIONS
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MCQOPTIONS
This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Electronics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
One of DeMorgan's theorems states that . Simply stated, this means that logically there is no difference between: |
| A. | a NAND gate and an AND gate with a bubbled output |
| B. | a NOR gate and an AND gate with a bubbled output |
| C. | a NOR gate and a NAND gate with a bubbled output |
| D. | a NAND gate and an OR gate with a bubbled output |
| Answer» C. a NOR gate and a NAND gate with a bubbled output | |
| 2. |
is the algebraic expression for the duality theorem. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
The Boolean expression for a three-input AND gate is Y = A B + C. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
The double-inversion rule states that if a variable is inverted twice, then the variable will be back to its original state. |
| A. | 1 |
| B. | |
| Answer» B. | |
| 5. |
The associative law of addition states that A + (B + C) = (A + B) + C. |
| A. | 1 |
| B. | |
| Answer» B. | |
| 6. |
The sum-of-products form is a Boolean expression that describes the ANDing of two or more OR functions. |
| A. | 1 |
| B. | |
| Answer» C. | |
| 7. |
One of DeMorgan's theorems states that . Simply stated, this means that logically there is no difference between: |
| A. | a NAND gate and an AND gate with a bubbled output |
| B. | a NOR gate and an AND gate with a bubbled output |
| C. | a NOR gate and a NAND gate with a bubbled output |
| D. | a NAND gate and an OR gate with a bubbled output |
| Answer» C. a NOR gate and a NAND gate with a bubbled output | |
| 8. |
is the algebraic expression for the duality theorem. |
| A. | 1 |
| B. | |
| C. | 1 |
| D. | |
| Answer» C. 1 | |
| 9. |
A Karnaugh map will ____________________. |
| A. | eliminate the need for tedious Boolean expressions |
| B. | allow any circuit to be implemented with just AND and OR gates |
| C. | produce the simplest sum-of-products expression |
| D. | give an overall picture of how the signals flow through the logic circuit |
| Answer» D. give an overall picture of how the signals flow through the logic circuit | |
| 10. |
The Boolean expression for a three-input AND gate is Y = A • B + C. |
| A. | 1 |
| B. | |
| Answer» C. | |
| 11. |
The application of Boolean algebra to the solution of digital logic circuits was first explored by ________ of ________. |
| A. | Claude Shannon, MIT |
| B. | George Boole, MIT |
| C. | George Boole, Stanford |
| D. | Claude Shannon, IBM |
| Answer» B. George Boole, MIT | |
| 12. |
One reason for using the sum-of-products form is that it can be implemented using all ______ gates without much alteration. |
| A. | AND |
| B. | NAND |
| C. | OR |
| D. | NOR |
| Answer» C. OR | |
| 13. |
According to the commutative law, in ORing and ANDing of two variables, the order in which the variables are ORed or ANDed makes no difference. |
| A. | 1 |
| B. | |
| Answer» B. | |
| 14. |
Each "1" entry in a K-map square represents ______________. |
| A. | a HIGH output on the truth table for all input combinations |
| B. | a LOW output for all possible HIGH input conditions |
| C. | a DON'T CARE condition for all possible input truth table combinations |
| D. | a HIGH for each input truth table condition that produces a HIGH output |
| Answer» E. | |
| 15. |
Subtraction is commutative. |
| A. | 1 |
| B. | |
| C. | 1 |
| D. | |
| Answer» C. 1 | |
| 16. |
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 |
| Answer» C. the commutative law of addition | |