MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Selenium rectifier can be operated at temperatures as high as____________? |
| A. | 25 C |
| B. | 40 C |
| C. | 60 C |
| D. | 75 C |
| Answer» E. | |
| 2. |
Which of the following mercury arc rectifier will deliver least undulating current? |
| A. | Six-phase |
| B. | Three-phase |
| C. | Two-phase |
| D. | Single-phase |
| Answer» B. Three-phase | |
| 3. |
In a grid control of mercury arc rectifiers when the grid is made positive relative to cathode, then it the electrons on their may to anode. |
| A. | Accelerates |
| B. | Decelerates |
| C. | Any of the above |
| D. | None of the above |
| Answer» B. Decelerates | |