MCQOPTIONS
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MCQOPTIONS
This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Direction: It consists of two statements, one labeled as ‘Statement (I)’ and the others as ‘Statement (II)’. You are to examine these two statements carefully and select the answer using the codes given below:Statement (I): Electrostatic Wattmeter is not widely used commercially because of its inability to measure the power of high value.Statement (II): It is used mainly for very small power measurements at high voltages and low power factors. |
| A. | Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I) |
| B. | Both Statement (I) and Statement (II) are individually true but Statement (II) is NOT the correct explanation of Statement (I) |
| C. | Statement (I) is true but Statement (II) is false |
| D. | Statement (I) is false but Statement (II) is true |
| Answer» C. Statement (I) is true but Statement (II) is false | |
| 2. |
A voltmeter with an internal resistance of 200 Ω when connected across an unknown resistance reads 250 V. The milliammeter internal resistance = 0 connected in series with the above combination reads 10 mA. The actual value of the unknown resistance is ___________ |
| A. | 25 kΩ |
| B. | 200 kΩ |
| C. | 28.56 kΩ |
| D. | 20 kΩ |
| Answer» D. 20 kΩ | |
| 3. |
Electrostatic-type instruments are primarily used as: |
| A. | Wattmeters |
| B. | Ohmmeters |
| C. | Voltmeters |
| D. | Ammeters |
| Answer» D. Ammeters | |
| 4. |
Electrostatic devices are mainly used as ___________. |
| A. | Voltmeter |
| B. | Calorimeter |
| C. | Spectrometer |
| D. | Photometer |
| Answer» B. Calorimeter | |