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. |
Full form of HVAC is _________ |
| A. | High Voltage Alternative Current |
| B. | High Voltage Alternating Current |
| C. | High-Value Alternating Combination |
| D. | High-Value Alternative Counter |
| Answer» C. High-Value Alternating Combination | |
| 2. |
Full form of HVDC is _________ |
| A. | High Voltage Direct Current |
| B. | High Voltage Distribution Combination |
| C. | High-Value Direct Current |
| D. | High-Value Distribution Combination |
| Answer» B. High Voltage Distribution Combination | |
| 3. |
The value of area under force-time graph is _________ |
| A. | Reaction |
| B. | Change in momentum |
| C. | Force |
| D. | Torque |
| Answer» C. Force | |
| 4. |
The value of area under acceleration-time graph is _________ |
| A. | Velocity |
| B. | Displacement |
| C. | Force |
| D. | Impulse |
| Answer» B. Displacement | |
| 5. |
The value of area under a velocity-time graph is _________ |
| A. | Acceleration |
| B. | Displacement |
| C. | Force |
| D. | Momentum |
| Answer» C. Force | |
| 6. |
Calculate the value measured by Moving Iron when a sinusoidal voltage signal V(t) = √2sin(3ωt) is applied to it. |
| A. | 2 V |
| B. | 1 V |
| C. | 3 V |
| D. | 4 V |
| Answer» C. 3 V | |
| 7. |
Calculate the value of the coefficient of adhesion for dusty rails if the value of the coefficient of adhesion for dry rails is .55. |
| A. | 0.65 |
| B. | 0.89 |
| C. | 0.97 |
| D. | 0.48 |
| Answer» E. | |
| 8. |
The coefficient of adhesion is maximum when rails are dusty. |
| A. | True |
| B. | False |
| Answer» C. | |
| 9. |
Calculate the velocity of the bottom point of the wheel for perfect rolling using the data: r=20 cm, ω=100 rad/sec. |
| A. | 20 m/sec |
| B. | 40 m/sec |
| C. | 60 m/sec |
| D. | 80 m/sec |
| Answer» B. 40 m/sec | |
| 10. |
Which one of the following is the correct relationship? |
| A. | F=μR |
| B. | F=4μR |
| C. | F=3μR |
| D. | F=2μR |
| Answer» B. F=4μR | |
| 11. |
Calculate the coefficient of friction if the angle of inclination is 60°. |
| A. | 2.73 |
| B. | 1.73 |
| C. | 2.48 |
| D. | 1.41 |
| Answer» C. 2.48 | |
| 12. |
The frictional force always acts in the _________ direction of motion of the body. |
| A. | Opposite |
| B. | Same |
| C. | Perpendicular |
| D. | Vertical |
| Answer» B. Same | |
| 13. |
If the friction force value is doubled, calculate the new value of the coefficient of friction. |
| A. | 4 times of the original value |
| B. | 2 times of the original value |
| C. | 7 times of the original value |
| D. | Remains the same |
| Answer» E. | |
| 14. |
Calculate the value of the coefficient of friction using the data: F=24 N, Normal force=12 N. |
| A. | 2 |
| B. | 4 |
| C. | 8 |
| D. | 9 |
| Answer» B. 4 | |
| 15. |
There are four types of friction. |
| A. | True |
| B. | False |
| Answer» C. | |