MCQOPTIONS
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MCQOPTIONS
This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Operations knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What are the dimensions of velocity gradient? |
| A. | T-1 |
| B. | Dimensionless |
| C. | L-1 |
| D. | M-1 |
| Answer» B. Dimensionless | |
| 2. |
The acceleration of a body is given by, a = t3 + 3t2 + 2t + 5. Determine the velocity gradient between t1 = 2 seconds and t2 = 5 seconds, at distance x = 5 meters. |
| A. | 305.25 s-1 |
| B. | 305 s |
| C. | 60 s-1 |
| D. | 61.05 s-1 |
| Answer» E. | |
| 3. |
The velocity field is given as v = (xy, xyz, z2xy). What is the velocity gradient at (x, y, z) = (2, 3, 4) ? |
| A. | 6 s-1 |
| B. | 12 s-1 |
| C. | 28 s-1 |
| D. | 0 s-1 |
| Answer» E. | |
| 4. |
Which of the following derivative represents velocity gradient ? (Here, ‘v’ is velocity, ‘t’ is time and ‘x’ is position) |
| A. | dv/dt |
| B. | dv/dx |
| C. | d2v/dx2 |
| D. | d2v/dt2 |
| Answer» B. dv/dx | |
| 5. |
Velocity gradient has units similar to which of the following quantities? |
| A. | Acceleration |
| B. | Distance |
| C. | Frequency |
| D. | Work |
| Answer» D. Work | |
| 6. |
Which one of the following is the correct unit of velocity gradient? |
| A. | ms-1 |
| B. | m3s-1 |
| C. | s-1 |
| D. | m |
| Answer» D. m | |