MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Fluid Mechanics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What will be the dimension of the flow consistency index for a fluid with a flow behaviour index of 3? |
| A. | [M L-2 T]. |
| B. | [M L-2 T-1]. |
| C. | [M L-1 T-2]. |
| D. | [M L-1 T]. |
| Answer» E. | |
| 2. |
For what value of flow behaviour index, does the consistency index has a dimension independent of time? |
| A. | 0 |
| B. | 1 |
| C. | 2 |
| D. | 3 |
| Answer» D. 3 | |
| 3. |
Which of the following is a shear-thickening fluid? |
| A. | Bingham plastic |
| B. | Thixotropic |
| C. | Dilatant |
| D. | Pseudoplastic |
| Answer» D. Pseudoplastic | |
| 4. |
The graph shows relation between shear stress Z and velocity gradient of a fluid is given by where A and n are constants. The graphs are drawn for three values of n. Which one will be the correct relationship between n1, n2 and n3? |
| A. | n1 > n2 > n3 |
| B. | n1 < n2 < n3 |
| C. | n1 > n3 > n2 |
| D. | n1 < n3 < n2 |
| Answer» C. n1 > n3 > n2 | |
| 5. |
The relation between shear stress Z and velocity gradient of a fluid is given by + B where A, n and B are constants. Which of the following conditions will hold for a Thixotropic fluid? |
| A. | A = 0;B ≠ 0; n > 1 |
| B. | A ≠ 0;B = 0; n > 1 |
| C. | A = 0;B = 0; n < 1 |
| D. | A ≠ 0;B ≠ 0; n < 1 |
| Answer» E. | |
| 6. |
The relation between shear stress Z and velocity gradient of a fluid is given by + B where A, n and B are constants. Which of the following conditions will hold for a Rheopectic? |
| A. | A = 0;B ≠ 0; n > 1 |
| B. | A ≠ 0;B = 0; n < 1 |
| C. | A = 0;B = 0; n < 1 |
| D. | A ≠ 0;B ≠ 0; n > 1 |
| Answer» E. | |
| 7. |
The relation between shear stress Z and velocity gradient of a fluid is given by + B where A, n and B are constants. Which of the following conditions will hold for a Bingham plastic? |
| A. | A = 0;B ≠ 0; n ≠ 1 |
| B. | A ≠ 0;B = 0; n ≠ 1 |
| C. | A = 0;B = 0; n = 1 |
| D. | A ≠ 0;B ≠ 0; n = 1 |
| Answer» E. | |
| 8. |
The relation between shear stress Z and velocity gradient of a fluid is given by where A and n are constants. If n < 1, what type of fluid will it be? |
| A. | Newtonian fluid |
| B. | Dilatant |
| C. | Pseudoplastic |
| D. | Bingham plastic |
| Answer» D. Bingham plastic | |
| 9. |
The relation between shear stress Z and velocity gradient of a fluid is given by where A and n are constants. If n > 1, what type of fluid will it be? |
| A. | Newtonian fluid |
| B. | Dilatant |
| C. | Pseudoplastic |
| D. | Bingham plastic |
| Answer» C. Pseudoplastic | |
| 10. |
The relation between shear stress Z and velocity gradient of a fluid is given by where A and n are constants. If n = 1, what type of fluid will it be? |
| A. | Newtonian fluid |
| B. | Non-Newtonian fluid |
| C. | Pseudoplastic |
| D. | Bingham plastic |
| Answer» B. Non-Newtonian fluid | |
| 11. |
WHICH_OF_THE_FOLLOWING_IS_A_SHEAR-THICKENING_FLUID??$ |
| A. | Bingham plastic |
| B. | Thixotropic |
| C. | Dilatant |
| D. | Pseudoplastic |
| Answer» D. Pseudoplastic | |
| 12. |
For what value of flow behaviour index, does the consistency index has a dimension independent of time?$ |
| A. | 0 |
| B. | 1 |
| C. | 2 |
| D. | 3 |
| Answer» D. 3 | |
| 13. |
What will be the dimension of the flow consistency index for a fluid with a flow behaviour index of -1? |
| A. | N/m<sup>2</sup> s<sup>2</sup> |
| B. | N/m<sup>2</sup> s |
| C. | N/ms |
| D. | N/ms<sup>2</sup> |
| Answer» C. N/ms | |
| 14. |
Which of the following is a shear-thinnning fluid? |
| A. | Bingham plastic |
| B. | Rheopectic |
| C. | Dilatant |
| D. | Pseudoplastic |
| Answer» E. | |