MCQOPTIONS
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MCQOPTIONS
This section includes 4 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. |
Vt= Ea Ia(Ra+ Rse) is the equation for _______________ |
| A. | Short shunt compound motoring mode |
| B. | Short shunt compound generating mode |
| C. | long shunt compound motoring mode |
| D. | Cannot be determined |
| Answer» C. long shunt compound motoring mode | |
| 2. |
For a long-shunt compound motoring, which of the following equation is correct? |
| A. | V<sub>t</sub>= E<sub>a</sub>+ I<sub>a</sub>(R<sub>a</sub>+ R<sub>se</sub>) |
| B. | V<sub>t</sub>= E<sub>a</sub> I<sub>a</sub>(R<sub>a</sub>+ R<sub>se</sub>) |
| C. | V<sub>t</sub>= E<sub>a</sub>+ I<sub>a</sub>(R<sub>a</sub> R<sub>se</sub>) |
| D. | V<sub>t</sub>= -E<sub>a</sub>+ I<sub>a</sub>(R<sub>a</sub>+ R<sub>se</sub>) |
| Answer» B. V<sub>t</sub>= E<sub>a</sub> I<sub>a</sub>(R<sub>a</sub>+ R<sub>se</sub>) | |
| 3. |
If a DC compound machine connected as a motor is about to use as a generator, we reverse the series field connections. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
How short shunt and long shunt compound winding is selected? |
| A. | Mechanical considerations |
| B. | Switch reversal |
| C. | Performance |
| D. | Mechanical considerations and switch reversal |
| Answer» E. | |