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Engineering Mechanics MCQs
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Engineering Mechanics MCQs
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25 Questions

1. What is the main motto of simplification?
2. Which statement is right?
3. The tendency of rotation of the body along any axis is also called ______
4. The couple and the other two force systems in free body diagrams can be easily simplified.
5. The moment is the cross product of which two vectors?
6. To design the trusses, which of the following rules is followed?
7. Express the vector in the Cartesian Form if the angle made by it with y and z-axis is 60° and 45° respectively. Also, it makes an angle of α with the x-axis. The magnitude of the force is 200N.
8. What is the dot product of two vectors which are having a magnitude equal to unity and are making an angle of 45°?
9. If the body is in equilibrium, but it is having a rotational curled ray shown in the free body diagram, then:
10. For two vectors defined by an arrow with a head and a tail. The length of each vector and the angle between them represents:
11. If five forces are acting on the single-particle and having an angle of 72° between each and are collinear, then:
12. In 3D, the body will be improperly constrained if the reaction forces intersect the axis.
13. Which of the following is correct for the moment of couple M caused by two forces of the same magnitude F and are separated by a distance of r?
14. If anybody is tied to three or more ropes and is allowed to achieve its equilibrium. Then the equilibrium achieved is achieved w.r.t what?
15. The single pin, single bearing, and single hinge resist _____
16. If the supports are properly aligned, the reaction forces developed adequately support the body.
17. A force is developed by the support that not allows the ________ of its attached member.
18. Which of the following forces do not cause the rotation. Suppose the rotation is considered inside the body's axis or the centroid axis of the body.
19. In the simplification of the loading system, the net force acts at the ___________ of the loading body.
20. For a vector F, Fcosβ is equal to zero. What does this refer to?
21. All the forces need to be collinear in the three-force system. Then only will they for the equilibrium state.
22. What if we multiply a scalar to the unit vector?
23. What is (AxB).(BxA); or A = A1i + A2j + A3k and B = B1i + B2j + B3k?
24. In triangle distributed loading, the loading at any distance can be easily found by using which of the following trigonometry function?
25. Which of the following is correct? (For A representing the vector representation of the axis of rotation, r the radius vector and F the force vector)

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