MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Measurements knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The role of the compensating coil in a megger is ________ |
| A. | reduce current |
| B. | increase voltage |
| C. | control temperature |
| D. | scaling |
| Answer» E. | |
| 2. |
The moving element of the ohmmeter in a megger consists of ________ |
| A. | 1 coil |
| B. | 4 coils |
| C. | 3 coils |
| D. | 10 coils |
| Answer» D. 10 coils | |
| 3. |
A guard ring is provided in a megger to ________ |
| A. | protect the circuit |
| B. | eliminate error |
| C. | reduce current flow |
| D. | limit the temperature rise |
| Answer» C. reduce current flow | |
| 4. |
The role of the compensating coil in a megger is _______? |
| A. | reduce current |
| B. | increase voltage |
| C. | control temperature |
| D. | scaling |
| Answer» E. | |
| 5. |
The moving element of the ohmmeter in a megger consists of ________ |
| A. | 1 coil |
| B. | 4 coils |
| C. | 3 coils |
| D. | 10 coils |
| Answer» D. 10 coils | |
| 6. |
The supply to the megger is given by ________ |
| A. | ac motor |
| B. | ac generator |
| C. | permanent magnet dc motor |
| D. | dc generator |
| Answer» D. dc generator | |
| 7. |
A guard ring is provided in a megger to ________ |
| A. | protect the circuit |
| B. | eliminate error |
| C. | reduce current flow |
| D. | limit the temperature rise |
| Answer» C. reduce current flow | |
| 8. |
The role of the permanent magnet in a megger is to ________ |
| A. | provide field |
| B. | provide voltage |
| C. | generate power |
| D. | balance the circuit |
| Answer» B. provide voltage | |
| 9. |
Megger works on the principle of ________ |
| A. | kirchhoff’s current laws |
| B. | ohm’s law |
| C. | gauss’s law |
| D. | electromagnetic induction |
| Answer» E. | |
| 10. |
Megger is also used for ________ |
| A. | providing additional e.m.f |
| B. | bridge balance |
| C. | testing insulation resistance |
| D. | controlling the temperature |
| Answer» D. controlling the temperature | |
| 11. |
Megger is a ________ |
| A. | source of e.m.f |
| B. | source to measure high resistance |
| C. | type of a null detector |
| D. | current carrier |
| Answer» C. type of a null detector | |
| 12. |
High resistances are of the order of __________ |
| A. | 0.1 M·øº |
| B. | 10 m·øº |
| C. | 1 k·øº |
| D. | 10 G·øº |
| Answer» B. 10 m¬¨‚àë‚àö‚à謨‚à´ | |