MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Instrumentation Transducers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In which of the following conditions, feedback gain (Af) become independent of forward gain (A)? |
| A. | A <<1 |
| B. | A =1 |
| C. | A >>1 |
| D. | A =0 |
| Answer» D. A =0 | |
| 2. |
In a feedback gain equation, what does the term stands for? |
| A. | Feedback gain |
| B. | Forward gain |
| C. | Open loop gain |
| D. | Closed loop gain |
| Answer» B. Forward gain | |
| 3. |
Input impedance of a system is 50 , for the system to be negative feedback, which of the following can be its input impedance without feedback? |
| A. | 50 |
| B. | 60 |
| C. | 40 |
| D. | 100 |
| Answer» D. 100 | |
| 4. |
For a negative feedback system, A=3 and =2 and output impedance without feedback are 100 . What will be its total output impedance? |
| A. | 14.3 |
| B. | 700 |
| C. | 33.33 |
| D. | 50 |
| Answer» B. 700 | |
| 5. |
Input impedance can be _______________ on application of negative feedback. |
| A. | Increased |
| B. | Decreased |
| C. | Halved |
| D. | Maintained constant |
| Answer» B. Decreased | |
| 6. |
Voltage gain improves on the application of negative feedback. |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
Which of the following change has been happened to output impedance in the negative feedback system? |
| A. | Increases |
| B. | Decreases |
| C. | No change |
| D. | Negative |
| Answer» C. No change | |
| 8. |
Which of the following represents complete expression for a closed loop system? |
| A. | A |
| B. | A/ A |
| C. | A/ (1+A ) |
| D. | 1/ (1+A ) |
| Answer» D. 1/ (1+A ) | |