MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Electric Drives knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Material used for making solar cell is _________ |
| A. | Silicon |
| B. | Carbon |
| C. | Sodium |
| D. | Magnesium |
| Answer» B. Carbon | |
| 2. |
Full form of BEL is ____________ |
| A. | Busy Electronics Limited |
| B. | Burden Electrical Limited |
| C. | Bharat Electronics Limited |
| D. | Brahma Electrical Limited |
| Answer» D. Brahma Electrical Limited | |
| 3. |
Full form of CEL is ____________ |
| A. | Central Electronics Limited |
| B. | Central Electrical Limited |
| C. | Circle Electronics Limited |
| D. | Circle Electrical Limited |
| Answer» B. Central Electrical Limited | |
| 4. |
Calculate the frequency of the waveform i(t) = sin(πt+π÷4)+sin(πt+π÷74). |
| A. | .5 Hz |
| B. | .8 Hz |
| C. | .1 Hz |
| D. | .9 Hz |
| Answer» B. .8 Hz | |
| 5. |
Calculate the active power in a 11710 H inductor. |
| A. | 8245 W |
| B. | 1781 W |
| C. | 0 W |
| D. | 1964 W |
| Answer» D. 1964 W | |
| 6. |
The power factor of a SCIM generally is ___________ |
| A. | .1-.2 |
| B. | .6-.8 |
| C. | .3-.4 |
| D. | .5-.7 |
| Answer» C. .3-.4 | |
| 7. |
SCIM has a _________ |
| A. | Shorter life |
| B. | Medium life |
| C. | Longer life |
| D. | Infinite life |
| Answer» D. Infinite life | |
| 8. |
The slope of the V-I curve of a solar cell is 66.1°. Calculate the value of resistance. Assume the relationship between voltage and current is a straight line. |
| A. | 3.5 Ω |
| B. | 2.2 Ω |
| C. | 2.5 Ω |
| D. | 2.9 Ω |
| Answer» C. 2.5 Ω | |
| 9. |
Calculate the line voltage in star connection when phase voltage=311 V. |
| A. | 548.29 V |
| B. | 538.66 V |
| C. | 587.28 V |
| D. | 185.58 V |
| Answer» C. 587.28 V | |
| 10. |
Permanent magnet DC motor is more expensive than an Induction motor. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 11. |
Calculate Fill factor using the data: Pmax=15 W, Voc=18 V, Isc=4 A. |
| A. | 0.65 |
| B. | .59 |
| C. | .20 |
| D. | .98 |
| Answer» D. .98 | |
| 12. |
Full form of FF in the solar field is ____________ |
| A. | Form factor |
| B. | Fill factor |
| C. | Face factor |
| D. | Fire factor |
| Answer» C. Face factor | |
| 13. |
Series and parallel combination of the solar cell is known as _________ |
| A. | Solar array |
| B. | Solar light |
| C. | Solar sight |
| D. | Solar eye |
| Answer» B. Solar light | |
| 14. |
There are three types of the solar cells. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 15. |
A solar cell converts light energy into __________ |
| A. | Electrical energy |
| B. | Thermal energy |
| C. | Sound energy |
| D. | Heat energy |
| Answer» B. Thermal energy | |