MCQOPTIONS
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MCQOPTIONS
This section includes 12 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. |
If the resolved force or the force which you get as the answer after solving the question is negative, then what does this implies? |
| A. | The work done is in the reverse direction w.r.t the direction set in the free body diagram |
| B. | The force is not in the reverse direction w.r.t the direction set in the free body diagram |
| C. | The force component is not possible |
| D. | The force is possible, but in the direction perpendicular to the resultant force |
| Answer» B. The force is not in the reverse direction w.r.t the direction set in the free body diagram | |
| 2. |
If solving the question in 3D calculations is difficult, then use the 2D system and then equate the total work done to zero. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Principle of virtual work done is having condition___________ |
| A. | U = 0 |
| B. | U = F |
| C. | U = M |
| D. | U = D |
| Answer» B. U = F | |
| 4. |
Virtual work done by the couple is best given by_____________ |
| A. | U = M |
| B. | U = M. |
| C. | U = Mx |
| D. | U = M |
| Answer» B. U = M. | |
| 5. |
Virtual Work done is best given by_______________ |
| A. | U = F rcos |
| B. | U = F rsin |
| C. | U = F rcot |
| D. | U = F r |
| Answer» B. U = F rsin | |
| 6. |
What is not the condition for the equilibrium in three dimensional system of axis so as to calculate the unknown forces acting on the body? |
| A. | Fx=0 |
| B. | Fy=0 |
| C. | Fz=0 |
| D. | F 0 |
| Answer» E. | |
| 7. |
Work done by the couple is best given by___________ |
| A. | dU = Md |
| B. | dU = M.d |
| C. | dU = Mxd |
| D. | dU = M |
| Answer» B. dU = M.d | |
| 8. |
We often determine the work done by the couples. A couple moment is developed when _______ of the attached member is prevented. |
| A. | Translation |
| B. | Rotation |
| C. | Addition |
| D. | Subtraction |
| Answer» C. Addition | |
| 9. |
Work done is best given by _____________ |
| A. | dU = F.dr |
| B. | dU = Fdrsin |
| C. | dU = F.drcot |
| D. | dU = Fxdrd |
| Answer» B. dU = Fdrsin | |
| 10. |
Fx=0, Fy=0 and Fz=0 are vector equations for the three dimensions. They are satisfied when the body is achieved it state of equilibrium and the network done is zero. |
| A. | True |
| B. | False |
| Answer» C. | |
| 11. |
The supports in the 3D are having more than three reaction forces. Because they are having three axis on which the components of the work needs to be zero. |
| 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» E. | |
| 12. |
Work done is best given by___________ |
| A. | dU = Fdrcos |
| B. | dU = Fdrsin |
| C. | dU = Fdrcot |
| D. | dU = Fdrd |
| Answer» B. dU = Fdrsin | |