 
			 
			MCQOPTIONS
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				This section includes 19 Mcqs, each offering curated multiple-choice questions to sharpen your Vlsi knowledge and support exam preparation. Choose a topic below to get started.
| 1. | The circuits with poor observability are: | 
| A. | ROM | 
| B. | PLA | 
| C. | Sequential circuits with long feedback loops | 
| D. | All of the mentioned | 
| Answer» D. All of the mentioned | |
| 2. | The poor controllability circuits are: | 
| A. | Decoders | 
| B. | Clock generators | 
| C. | Circuits with feedback | 
| D. | All of the mentioned | 
| Answer» E. | |
| 3. | The ease with which the controller determines signal value at any node by setting input values is known as: | 
| A. | Testability | 
| B. | Observability | 
| C. | Controllability | 
| D. | Manufacturability | 
| Answer» C. Controllability | |
| 4. | The ease with which the controller establishes specific signal value at each node by setting input values is known as: | 
| A. | Testability | 
| B. | Observability | 
| C. | Controllability | 
| D. | Manufacturability | 
| Answer» D. Manufacturability | |
| 5. | The defect present in the following MOSFET is: | 
| A. | Logical stuck at 1 | 
| B. | Logical stuck at 0 | 
| C. | Physical defect | 
| D. | Electrical Transistor stuck open | 
| Answer» E. | |
| 6. | THE_EASE_WITH_WHICH_THE_CONTROLLER_DETERMINES_SIGNAL_VALUE_AT_ANY_NODE_BY_SETTING_INPUT_VALUES_IS_KNOWN_AS:?$ | 
| A. | Testability | 
| B. | Observability | 
| C. | Controllability | 
| D. | Manufacturability | 
| Answer» C. Controllability | |
| 7. | The circuits with poor observability are:$ | 
| A. | ROM | 
| B. | PLA | 
| C. | Sequential circuits with long feedback loops | 
| D. | All of the mentioned | 
| Answer» D. All of the mentioned | |
| 8. | The poor controllability circuits are:$ | 
| A. | Decoders | 
| B. | Clock generators | 
| C. | Circuits with feedback | 
| D. | All of the mentioned | 
| Answer» E. | |
| 9. | LSSD stands for: | 
| A. | Linear system synchronous detection | 
| B. | Level sensitive system detection | 
| C. | Level sensitive scan design | 
| D. | Level sensitive scan detection | 
| Answer» D. Level sensitive scan detection | |
| 10. | Divide and Conquer approach to large and complex circuits for testing is found in: | 
| A. | Partition and Mux Technique | 
| B. | Simplified automatic test pattern generation technique | 
| C. | Scan based technique | 
| D. | All of the mentioned | 
| Answer» B. Simplified automatic test pattern generation technique | |
| 11. | Large number of input vectors are used to set a particular node (1) or (0), to propagate an error at the node to output makes the circuit low on: | 
| A. | Testability | 
| B. | Observability | 
| C. | Controllability | 
| D. | All of the mentioned | 
| Answer» B. Observability | |
| 12. | The ease with which the controller establish specific signal value at each node by setting input values is known as? | 
| A. | Testability | 
| B. | Observability | 
| C. | Controllability | 
| D. | Manufacturability | 
| Answer» D. Manufacturability | |
| 13. | The fault simulation detects faults by: | 
| A. | Test generation | 
| B. | Construction of fault Dictionaries | 
| C. | Design analysis under faults | 
| D. | All of the mentioned | 
| Answer» E. | |
| 14. | High resistance short present between drain and ground of n-MOSFET inverter acts as: | 
| A. | Pull up delay error | 
| B. | Logical fault as output is stuck at 1 | 
| C. | Electrical fault as transistor stuck on | 
| D. | All of the mentioned | 
| Answer» B. Logical fault as output is stuck at 1 | |
| 15. | A metallic blob present between drain and the ground of the n-MOSFET inverter acts as: | 
| A. | Physical defect | 
| B. | Logical fault as output is stuck on 0 | 
| C. | Electrical fault as resistor short | 
| D. | All of the mentioned | 
| Answer» E. | |
| 16. | Delay fault is considered as: | 
| A. | Electrical fault | 
| B. | Logical fault | 
| C. | Physical defect | 
| D. | None of the Mentioned | 
| Answer» C. Physical defect | |
| 17. | ATPG stands for: | 
| A. | Attenuated Transverse wave Pattern Generation | 
| B. | Automatic Test Pattern Generator | 
| C. | Aligned Test Parity Generator | 
| D. | None of the mentioned | 
| Answer» C. Aligned Test Parity Generator | |
| 18. | The functions performed during chip testing are: | 
| A. | Detect faults in fabrication. | 
| B. | Detect faults in design | 
| C. | Failures in functionality | 
| D. | All of the mentioned | 
| Answer» E. | |
| 19. | Design for testability is considered in production for chips because: | 
| A. | Manufactured chips are faulty and are required to be tested | 
| B. | The design of chips are required to be tested | 
| C. | Many chips are required to be tested within short interval of time which yields timely delivery for the customers. | 
| D. | All of the mentioned | 
| Answer» D. All of the mentioned | |