MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Transformers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A 100/10, 50 VA double winding transformer is converted to 100/110 V auto transformer. tWhat will be the rating of auto transformer? |
| A. | 500 VA |
| B. | 550 VA |
| C. | 100 VA |
| D. | 110 VA |
| Answer» C. 100 VA | |
| 2. |
What are the modes in which power can be transferred in an autotransformer? |
| A. | Conduction |
| B. | Induction |
| C. | Conduction and Induction |
| D. | Cannot be said |
| Answer» D. Cannot be said | |
| 3. |
For an auto-transformation ratio tending to the unity value, saving of the conductor material will be ___________ |
| A. | Tend towards 90% or more |
| B. | Tend towards 0% |
| C. | Can t say |
| D. | Wil remain fix |
| Answer» B. Tend towards 0% | |
| 4. |
Ratio of winding material needed for autotransformer to thr two winding transformer is ______ |
| A. | 1- V<sub>2</sub>/V<sub>1</sub> |
| B. | 1- N<sub>2</sub>/N<sub>1</sub> |
| C. | 1- V<sub>2</sub>/V<sub>1</sub> and 1- N<sub>2</sub>/N<sub>1</sub> |
| D. | 1- V<sub>1</sub>/V<sub>2</sub> |
| Answer» D. 1- V<sub>1</sub>/V<sub>2</sub> | |
| 5. |
An autotransformer compared to its two-winding counterpart has a higher operating efficiency. |
| A. | True |
| B. | False |
| Answer» B. False | |