MCQOPTIONS
Saved Bookmarks
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. |
Calculate the compensator rating required for cos( )=.35. |
| A. | .936 P.U |
| B. | .154 P.U |
| C. | .481 P.U |
| D. | .289 P.U |
| Answer» B. .154 P.U | |
| 2. |
Calculate the work done in stretching the wire of volume=12 m3 and the values of stress and strain are 28 N/m2 and 7. |
| A. | 1176 J |
| B. | 1544 J |
| C. | 2542 J |
| D. | 8788 J |
| Answer» B. 1544 J | |
| 3. |
Calculate the value of for =.2. |
| A. | .85 |
| B. | .15 |
| C. | .23 |
| D. | .16 |
| Answer» E. | |
| 4. |
Calculate the value of Vpeak if crest factor=5 and Vr.m.s=4 V. |
| A. | 20 V |
| B. | 30 V |
| C. | 40 V |
| D. | 50 V |
| Answer» B. 30 V | |
| 5. |
In a transistor, =75 and Ic=53 mA. The value of IB is _____________ |
| A. | .70 mA |
| B. | .25 mA |
| C. | .26 mA |
| D. | .15 mA |
| Answer» B. .25 mA | |
| 6. |
In a transistor, IB=2 mA and Ic=3 mA. The value of is _____________ |
| A. | 1.5 |
| B. | 5.8 |
| C. | 9.6 |
| D. | 3.5 |
| Answer» B. 5.8 | |
| 7. |
Calculate the value of for =.8. |
| A. | 2 |
| B. | 8 |
| C. | 3 |
| D. | 4 |
| Answer» E. | |
| 8. |
A Transistor is a current operated device. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
Choose the correct relationship between and . |
| A. | = /(1- ) |
| B. | =1/(1+ ) |
| C. | =1/(1- ) |
| D. | =1/( ) |
| Answer» B. =1/(1+ ) | |
| 10. |
In a transistor, Ic=47 mA and IE=53 mA. The value of is _____________ |
| A. | 8.48 |
| B. | 7.83 |
| C. | 9.26 |
| D. | 3.15 |
| Answer» C. 9.26 | |
| 11. |
Calculate the value of using the data: Ic=18 mA, IE=17 mA. |
| A. | 1.05 |
| B. | 1.47 |
| C. | 1.89 |
| D. | 2.55 |
| Answer» B. 1.47 | |
| 12. |
Calculate the current gain using the data: Ic=25 mA, IB=10 mA. |
| A. | 3.5 |
| B. | 2.5 |
| C. | 1.4 |
| D. | 7.8 |
| Answer» C. 1.4 | |
| 13. |
Calculate the collector current using the data: IE=14 mA, IB=7 mA. |
| A. | 7 mA |
| B. | 8 mA |
| C. | 9 mA |
| D. | 10 mA |
| Answer» B. 8 mA | |
| 14. |
Who is larger in size? |
| A. | Base |
| B. | Collector |
| C. | Emitter |
| D. | P-N Junction |
| Answer» B. Collector | |
| 15. |
The base of a transistor is lightly doped. |
| A. | True |
| B. | False |
| Answer» B. False | |