MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Mechanics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which statement is correct about the vector F in the showing the conservative nature of the forces? |
| A. | F= Fcos β + Fcos α + Fcosγ |
| B. | F= Fsin β + Fcos α + Fcosγ |
| C. | F= Fcos β + Fsin α + Fcosγ |
| D. | F= Fcos β + Fcos α + Fsinγ |
| Answer» B. F= Fsin β + Fcos α + Fcosγ | |
| 2. |
We use sometimes the measures to know the direction of moment in the calculations of the moments caused by the conservative forces. Which one is right about it(consider the mentioned axis to be positive)? |
| A. | Thumb is z-axis, fingers curled from x-axis to y-axis |
| B. | Thumb is x-axis, fingers curled from z-axis to y-axis |
| C. | Thumb is y-axis, fingers curled from x-axis to z-axis |
| D. | Thumb is z-axis, fingers curled from y-axis to x-axis |
| E. | ?a) Thumb is z-axis, fingers curled from x-axis to y-axisb) Thumb is x-axis, fingers curled from z-axis to y-axisc) Thumb is y-axis, fingers curled from x-axis to z-axisd) Thumb is z-axis, fingers curled from y-axis to x-axis |
| Answer» B. Thumb is x-axis, fingers curled from z-axis to y-axis | |
| 3. |
What does Newton’s third law states for the conservative forces? |
| A. | The rate of change of momentum is equal to the force applied |
| B. | For every reaction there is an opposite reaction |
| C. | The body is tend to be rotated if the force is applied tangentially |
| D. | The body is rest until a force is applied |
| Answer» C. The body is tend to be rotated if the force is applied tangentially | |
| 4. |
The conservative frictional force always acts ____________ to the surface of the application of the friction. |
| A. | Tangential |
| B. | Perpendicular |
| C. | Parallel |
| D. | Normal |
| Answer» B. Perpendicular | |
| 5. |
For equilibrium, the net moment acting on the body by various conservative forces is zero. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
FOR_EQUILIBRIUM,_THE_NET_MOMENT_ACTING_ON_THE_BODY_BY_VARIOUS_CONSERVATIVE_FORCES_IS_ZERO.?$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
For the conditions of the equilibrium of the body, i.e. the rigid body only the external conservative forces defines the equilibrium. Because the internal conservative forces cancels out so not to be considered. |
| A. | The first part of the statement is false and other part is true |
| B. | The first part of the statement is false and other part is false too |
| C. | The first part of the statement is true and other part is false |
| D. | The first part of the statement is true and other part is true too |
| Answer» B. The first part of the statement is false and other part is false too | |
| 8. |
We use sometimes the measures to know the direction of moment in the calculations of the moments caused by the conservative forces. Which one is right about it(consider the mentioned axis to be positive)? |
| A. | Thumb is z-axis, fingers curled from x-axis to y-axis |
| B. | Thumb is x-axis, fingers curled from z-axis to y-axis |
| C. | Thumb is y-axis, fingers curled from x-axis to z-axis |
| D. | Thumb is z-axis, fingers curled from y-axis to x-axis |
| Answer» D. Thumb is z-axis, fingers curled from y-axis to x-axis | |
| 9. |
What does Newton’s third law states for the conservative forces?$ |
| A. | The rate of change of momentum is equal to the force applied |
| B. | For every reaction there is an opposite reaction |
| C. | The body is tend to be rotated if the force is applied tangentially |
| D. | The body is rest until a force is applied |
| Answer» B. For every reaction there is an opposite reaction | |
| 10. |
The_conservative_frictional_force_always_acts______________to_the_surface_of_the_application_of_the_friction. |
| A. | Tangential |
| B. | Perpendicular |
| C. | Parallel |
| D. | Normal |
| Answer» C. Parallel | |
| 11. |
Which statement is right for conservative force vector F = Ai + Bj + Ck? |
| A. | In rectangular components representation of any vector we have vector F = Ai + Bj + Ck |
| B. | In rectangular components representation of any vector we have vector F = Ax + By + Cz |
| C. | In rectangular components representation of any vector we have vector F = Fx + Fy + Fz |
| D. | In rectangular components representation of any vector we have vector F = Fi + Fj + Fk |
| Answer» D. In rectangular components representation of any vector we have vector F = Fi + Fj + Fk | |
| 12. |
In the explanation of the theory of friction over which conservative forces were acted upon, the block used to have an assumption. That is the upper portion of the block is considered to be rigid. |
| A. | True |
| B. | False |
| Answer» C. | |
| 13. |
____________ is the phenomena that resist the movement of the two surfaces in contact. This phenomenon is also having its scope in the work and the conservative nature of the force. |
| A. | Friction |
| B. | Motion |
| C. | Circular movement |
| D. | Rotation |
| Answer» B. Motion | |
| 14. |
What is the sum of squares of the cosine angles made by the conservative force vector with the coordinate axis? |
| A. | 1 |
| B. | ¬Ω |
| C. | 2 |
| D. | 3 |
| Answer» B. ¬¨¬®≈í¬© | |
| 15. |
If any external conservative force also is applied on the distributed loading then? |
| A. | The net force will act at the centroid of the structure only |
| B. | The net load will not be formed as all the forces will be cancelled |
| C. | The net force will act on the base of the loading horizontally |
| D. | The net force will not to be considered, there would be a net force of the distribution, rest will be the external forces |
| Answer» E. | |