MCQOPTIONS
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MCQOPTIONS
This section includes 8 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. |
How are instrument transformers different from shunts and multipliers? |
| A. | they are all the same |
| B. | they have transformers |
| C. | readings are independent of component values |
| D. | they can be used for high voltages and currents |
| Answer» D. they can be used for high voltages and currents | |
| 2. |
How can the meter circuit be isolated from the power circuit? |
| A. | by grounding |
| B. | through electrical isolation |
| C. | by physical separation |
| D. | through mechanical isolation |
| Answer» C. by physical separation | |
| 3. |
A 110V voltmeter can measure a voltage of upto 110kV using a _________ |
| A. | 110000/110V P.T. |
| B. | 110000V P.T. |
| C. | 110V P.T. |
| D. | 110/110000V P.T. |
| Answer» B. 110000V P.T. | |
| 4. |
A 5A ammeter can measure a current of upto 1000 A using a _________ |
| A. | 5/1000A C.T. |
| B. | 1000A C.T. |
| C. | 5A C.T. |
| D. | 1000/5A C.T. |
| Answer» E. | |
| 5. |
C.T. and P.T. are standardized at _________ |
| A. | 50 A and 220 V |
| B. | 25 mA and 2.2 kV |
| C. | 5 A and 110 V |
| D. | 75 nA and 1.1 MV |
| Answer» D. 75 nA and 1.1 MV | |
| 6. |
Instrument transformers give same readings irrespective of number of other instruments connected. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
Instrument transformers provide _________ |
| A. | electrical isolation from low rated winding |
| B. | electrical isolation from high rated winding |
| C. | electrical isolation from medium rated winding |
| D. | no electrical isolation at all |
| Answer» C. electrical isolation from medium rated winding | |
| 8. |
Instrument transformers can be easily replaced. |
| A. | True |
| B. | False |
| Answer» B. False | |