MCQOPTIONS
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MCQOPTIONS
This section includes 3 Mcqs, each offering curated multiple-choice questions to sharpen your Transformers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In 4-wire star connection 3rd harmonic currents may flow through ______________ |
| A. | lines |
| B. | phases |
| C. | from fourth wire to neutral |
| D. | all connections |
| Answer» E. | |
| 2. |
Hot-spot temperature is dependent on ____________ |
| A. | 4 categories |
| B. | 6 categories |
| C. | 8 categories |
| D. | 10 categories |
| Answer» B. 6 categories | |
| 3. |
Increased transformer insulation stresses are due to _______________ |
| A. | third harmonic currents |
| B. | third harmonic voltages |
| C. | fifth harmonic currents |
| D. | fifth harmonic voltages |
| Answer» C. fifth harmonic currents | |