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. |
The dependency notation " 1" inside a block stands for the ________ operation. |
| A. | OR |
| B. | XOR |
| C. | AND |
| D. | XNOR |
| Answer» B. XOR | |
| 2. |
The exclusive-NOR (XNOR) gate is simply an OR gate followed by a NOT gate. |
| A. | 1 |
| B. | |
| Answer» C. | |
| 3. |
The AND function can be used to ___________ and the OR function can be used to _____________. |
| A. | enable, disable |
| B. | disable, enable |
| C. | synchronize, energize |
| D. | detect, invert |
| Answer» B. disable, enable | |
| 4. |
If both inputs are required to be ON for the output to be ON, the gate must be an AND gate. |
| A. | 1 |
| B. | |
| Answer» B. | |
| 5. |
If we use an AND gate to inhibit a signal from passing, one of the inputs must be _________. |
| A. | LOW |
| B. | HIGH |
| C. | inverted |
| D. | floating |
| Answer» B. HIGH | |
| 6. |
The output of a NAND gate is the same as the inverted output of an AND gate. |
| A. | 1 |
| B. | |
| Answer» B. | |
| 7. |
If the output of a gate is OFF when the inputs are the same, and ON when they are different, the gate must be an exclusive-OR. |
| A. | 1 |
| B. | |
| Answer» B. | |
| 8. |
What input values will cause an AND logic gate to produce a HIGH output? |
| A. | At least one input is HIGH. |
| B. | At least one input is LOW. |
| C. | All inputs are HIGH. |
| D. | All inputs are LOW. |
| Answer» D. All inputs are LOW. | |
| 9. |
Logic gate circuits contain predictable gate functions that open their outputs. |
| A. | 1 |
| B. | |
| Answer» C. | |
| 10. |
The dependency notation " 1" inside a block stands for the ________ operation. |
| A. | OR |
| B. | XOR |
| C. | AND |
| D. | XNOR |
| Answer» B. XOR | |
| 11. |
How many NAND circuits are contained in a 7400 NAND IC? |
| A. | 1 |
| B. | 2 |
| C. | 4 |
| D. | 8 |
| Answer» D. 8 | |
| 12. |
A single transistor can be used to build which of the following digital logic gates? |
| A. | AND gates |
| B. | OR gates |
| C. | NOT gates |
| D. | NAND gates |
| Answer» D. NAND gates | |
| 13. |
The output of an exclusive-OR (XOR) gate is 1 only when the inputs are different. |
| A. | 1 |
| B. | |
| C. | 1 |
| D. | |
| Answer» B. | |
| 14. |
Exclusive-OR (XOR) logic gates can be constructed from what other logic gates? |
| A. | OR gates only |
| B. | AND gates and NOT gates |
| C. | AND gates, OR gates, and NOT gates |
| D. | OR gates and NOT gates |
| Answer» D. OR gates and NOT gates | |
| 15. |
A logic circuit whose output is LOW when at least one input is HIGH is a(n) _________ gate. |
| A. | NOR |
| B. | AND |
| C. | NAND |
| D. | exclusive-OR gate |
| Answer» B. AND | |
| 16. |
The output will be a LOW for any case when one or more inputs are zero in a(n): |
| A. | OR gate |
| B. | NOT gate |
| C. | AND gate |
| D. | NAND gate |
| Answer» D. NAND gate | |