MCQOPTIONS
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MCQOPTIONS
This section includes 10 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. |
What is the relation between eddy current damping coefficient and resistance in PMMC device? |
| A. | Direct proportionality |
| B. | Inverse proportionality |
| C. | Constant |
| D. | None of the mentioned |
| Answer» C. Constant | |
| 2. |
Which of the following represents for torque speed characteristic for dc motor? |
| A. | Positive slope |
| B. | Negative slope |
| C. | Slope zero |
| D. | None of the mentioned |
| Answer» C. Slope zero | |
| 3. |
For a constant field dc motor, what is the relation between the mechanical time constant and armature resistance? |
| A. | Direct proportionality |
| B. | Inverse proportionality |
| C. | Double |
| D. | Equal |
| Answer» B. Inverse proportionality | |
| 4. |
Which of the following is the correct conversion in an electro mechanical system? |
| A. | Electrical to electrical |
| B. | Electrical to mechanical |
| C. | Mechanical to electrical |
| D. | Both electrical to mechanical and mechanical to electrical |
| Answer» E. | |
| 5. |
Torque developed by a DC motor will be proportional to armature current. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
Most electrical indicating instruments are electromechanical systems since ________________ |
| A. | They are used to measure electric component |
| B. | They are more precise |
| C. | They require no external power to operate |
| D. | They convert electrical quantity to mechanical quantity |
| Answer» E. | |
| 7. |
Transfer function of force motor is _____________ |
| A. | K<sub>g</sub> |
| B. | SK<sub>g</sub> |
| C. | K<sub>f</sub> |
| D. | SK<sub>f</sub> |
| Answer» D. SK<sub>f</sub> | |
| 8. |
Which of the following represents transfer function of tacho-generators? |
| A. | K<sub>g</sub> |
| B. | 1/K<sub>g</sub> |
| C. | SK<sub>g</sub> |
| D. | S<sup>2</sup>K<sub>g</sub> |
| Answer» B. 1/K<sub>g</sub> | |
| 9. |
Current to force and current to torque conversion is possible only for a constant current source. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
Tacho generators are ______________ |
| A. | Zero-order system |
| B. | First-order system |
| C. | Second order system |
| D. | None of the mentioned |
| Answer» B. First-order system | |