MCQOPTIONS
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MCQOPTIONS
This section includes 17 Mcqs, each offering curated multiple-choice questions to sharpen your Digital Circuits knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
If A, B and C are the inputs of a full adder then the carry is given by __________ |
| A. | A AND B OR (A OR B) AND C |
| B. | A OR B OR (A AND B) C |
| C. | (A AND B) OR (A AND B)C |
| D. | A XOR B XOR (A XOR B) AND C |
| Answer» B. A OR B OR (A AND B) C | |
| 2. |
If A, B and C are the inputs of a full adder then the sum is given by __________ |
| A. | A AND B AND C |
| B. | A OR B AND C |
| C. | A XOR B XOR C |
| D. | A OR B OR C |
| Answer» D. A OR B OR C | |
| 3. |
The difference between half adder and full adder is __________ |
| A. | Half adder has two inputs while full adder has four inputs |
| B. | Half adder has one output while full adder has two outputs |
| C. | Half adder has two inputs while full adder has three inputs |
| D. | All of the Mentioned |
| Answer» D. All of the Mentioned | |
| 4. |
Half-adders have a major limitation in that they cannot __________ |
| A. | Accept a carry bit from a present stage |
| B. | Accept a carry bit from a next stage |
| C. | Accept a carry bit from a previous stage |
| D. | Accept a carry bit from the following stages |
| Answer» D. Accept a carry bit from the following stages | |
| 5. |
If A and B are the inputs of a half adder, the carry is given by __________ |
| A. | A AND B |
| B. | A OR B |
| C. | A XOR B |
| D. | A EX-NOR B |
| Answer» B. A OR B | |
| 6. |
If A and B are the inputs of a half adder, the sum is given by __________ |
| A. | A AND B |
| B. | A OR B |
| C. | A XOR B |
| D. | A EX-NOR B |
| Answer» D. A EX-NOR B | |
| 7. |
Total number of inputs in a half adder is __________ |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 1 |
| Answer» B. 3 | |
| 8. |
In parts of the processor, adders are used to calculate ____________ |
| A. | Addresses |
| B. | Table indices |
| C. | Increment and decrement operators |
| D. | All of the Mentioned |
| Answer» E. | |
| 9. |
IF_A,_B_AND_C_ARE_THE_INPUTS_OF_A_FULL_ADDER_THEN_THE_CARRY_IS_GIVEN_BY?$ |
| A. | A AND B OR (A OR B) AND C |
| B. | A OR B OR (A AND B) C |
| C. | (A AND B) OR (A AND B)C |
| D. | A XOR B XOR (A XOR B) AND C |
| Answer» B. A OR B OR (A AND B) C | |
| 10. |
How_many_AND,_OR_and_EXOR_gates_are_required_for_the_configuration_of_full_adder$ |
| A. | 1, 2, 2 |
| B. | 2, 1, 2 |
| C. | 3, 1, 2 |
| D. | 4, 0, 1 |
| Answer» C. 3, 1, 2 | |
| 11. |
If A, B and C are the inputs of a full adder then the sum is given b? |
| A. | A AND B AND C |
| B. | A OR B AND C |
| C. | A OR B OR C |
| D. | A XOR B XOR C |
| Answer» D. A XOR B XOR C | |
| 12. |
The difference between half adder and full adder is |
| A. | Half adder has two inputs while full adder has four inputs |
| B. | Half adder has one output while full adder has two outputs |
| C. | Half adder has two inputs while full adder has three inputs |
| D. | All of the Mentioned |
| Answer» D. All of the Mentioned | |
| 13. |
Half-adders have a major limitation in that they cannot |
| A. | Accept a carry bit from a present stage |
| B. | Accept a carry bit from a next stage |
| C. | Accept a carry bit from a previous stage |
| D. | None of the Mentioned |
| Answer» D. None of the Mentioned | |
| 14. |
If A and B are the inputs of a half adder, the sum is given by |
| A. | A AND B |
| B. | A OR B |
| C. | A XOR B |
| D. | A EXOR B |
| Answer» D. A EXOR B | |
| 15. |
In which operation carry is obtained? |
| A. | Subtraction |
| B. | Addition |
| C. | Multiplication |
| D. | Both addition and subtraction |
| Answer» C. Multiplication | |
| 16. |
Total number of inputs in a half adder is |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 1 |
| Answer» B. 3 | |
| 17. |
In parts of the processor, adders are used to calculate |
| A. | Addresses |
| B. | Table indices |
| C. | Increment and decrement operators |
| D. | All of the Mentioned |
| Answer» E. | |