MCQOPTIONS
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MCQOPTIONS
This section includes 3 Mcqs, each offering curated multiple-choice questions to sharpen your Dc Machines knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the value of pole pitch (in SI unit) for mean air gap radius= 0.5mm and P=4? |
| A. | 0.785* 10<sup>-6</sup> |
| B. | 0.785* 10<sup>-3</sup> |
| C. | 0.785* 10<sup>-2</sup> |
| D. | 0.785* 10<sup>-4</sup> |
| Answer» C. 0.785* 10<sup>-2</sup> | |
| 2. |
9.What is the torque equation in terms of B, Ic, l, Zr (r= mean air gap radius)? |
| A. | Bav*Ic*l*Zr |
| B. | Bav*Ic*l/Zr |
| C. | Bav*Ic*Zr/l |
| D. | Can t be expressed |
| Answer» B. Bav*Ic*l/Zr | |
| 3. |
In a DC machine, average energy stored in the magnetic field remains constant independent of the armature rotation. |
| A. | True |
| B. | False |
| Answer» B. False | |