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This section includes 18 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. |
Determine the x coordinate of centroid of the shape shown. |
A. | 0.410m |
B. | 1.410m |
C. | 2.410m |
D. | 0.10m |
Answer» B. 1.410m | |
2. |
We use sometimes the measures to know the direction of moment. It is done by right handed coordinate system. Which is right about it for the composite bodies (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. |
A composite body is consisted of __________ number of particles. |
A. | Infinite |
B. | Finite |
C. | Hundreds |
D. | Thousands |
Answer» B. Finite | |
4. |
If any external force also is applied on the distributed loading on the composite body 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, and rest will be the external forces |
Answer» E. | |
5. |
One of the uses of the centre of mass or centroid of the composite bodies is as in the simplification of the loading system the net force acts at the ___________ of the loading body. |
A. | Centroid |
B. | The centre axis |
C. | The corner |
D. | The base |
Answer» B. The centre axis | |
6. |
A ______________ body consists of a series of connected “simpler” shaped bodies. |
A. | Composite |
B. | Non-composite |
C. | Digital |
D. | Binary |
Answer» B. Non-composite | |
7. |
IF_ANY_EXTERNAL_FORCE_ALSO_IS_APPLIED_ON_THE_DISTRIBUTED_LOADING_ON_THE_COMPOSITE_BODY_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, and rest will be the external forces |
Answer» E. | |
8. |
We use sometimes the measures to know the direction of moment. It is done by right handed coordinate system. Which is right about it for the composite bodies (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» B. Thumb is x-axis, fingers curled from z-axis to y-axis | |
9. |
A_composite_body_is_consisted_of____________number_of_particles.$ |
A. | Infinite |
B. | Finite |
C. | Hundreds |
D. | Thousands |
Answer» B. Finite | |
10. |
What is not the condition for the equilibrium in three dimensional system of axis for the composite bodies? |
A. | ‚àëFx=0 |
B. | ‚àëFy=0 |
C. | ‚àëFz=0 |
D. | ∑F≠0 |
Answer» E. | |
11. |
One of the uses of the centre of mass or centroid of the composite bodies is as in the simplification of the loading system the net force acts at the ___________ of the loading body? |
A. | Centroid |
B. | The centre axis |
C. | The corner |
D. | The base |
Answer» B. The centre axis | |
12. |
The total of all the masses of small particles adds up to give the total body mass of the composite body. This mass lies along with gravity gives a force vector which is being passed by ________ |
A. | Axis of rotation |
B. | Axis of rolling |
C. | Centre of Gravity |
D. | Centre of mass |
Answer» D. Centre of mass | |
13. |
The centre of mass for the composite body is the ratio of ________ to _________ |
A. | The product of centroid and mass to the total weight |
B. | The addition of centroid and weight to the total weight |
C. | The subtraction of centroid and weight to the total weight |
D. | The product of centroid and mass to the total mass |
Answer» E. | |
14. |
Two of the things of the composite materials are to be known so that their properties can be varied. Which of the following is one of them? |
A. | Weight of the centre of gravity |
B. | Weight of the centre of body |
C. | Location of the centre of gravity |
D. | Location of the centre of mass |
Answer» D. Location of the centre of mass | |
15. |
Composite materials can be of __________ shapes. |
A. | Any |
B. | Circular only |
C. | Rectangular only |
D. | Oval only |
Answer» B. Circular only | |
16. |
The composite materials are lighter than their constituent material. |
A. | False |
B. | True |
Answer» C. | |
17. |
Composite materials are of no use for the chemical engineers. |
A. | False |
B. | True |
Answer» B. True | |
18. |
A ______________ body consists of a series of connected “simpler” shaped bodies. |
A. | Composite |
B. | Non-composite |
C. | Digital |
D. | Binary |
Answer» B. Non-composite | |