Engineering Mechanics (Practice Test MCQs)

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1. The branch of mechanics dealing with the motion of bodies without considering forces is called:





2. The SI unit of force is:





3. The condition for a body to be in equilibrium is:





4. The rate of change of momentum is equal to:





5. The center of gravity of a uniform rod is located at:





6. Newton’s third law of motion states:





7. Moment is the product of:





8. The unit of moment of force is:





9. Which of the following is a scalar quantity?





10. The resultant of two equal forces acting at right angles is:





11. Lami’s theorem is used for:





12. The moment of inertia of a rectangle about its base is:





13. The coefficient of friction is the ratio of:





14. Which of the following has no unit?





15. The law of the parallelogram of forces is used to find:





16. Work is defined as:





17. The unit of power is:





18. A body is said to be in equilibrium when:





19. Kinetic energy is given by:





20. The unit of angular velocity is:





21. The center of gravity of a hemisphere lies at:





22. The principle of transmissibility of forces states that:





23. If two equal and opposite forces act at a distance apart, they form:





24. The polygon law of forces is used for:





25. The unit of pressure is:





26. The work-energy principle states that:





27. A system of coplanar forces is said to be concurrent when:





28. The moment of inertia depends upon:





29. Centroid is the:





30. The law of inertia is related to:





31. A body moving in a circular path experiences:





32. The angle of friction is:





33. The kinematic pair with no relative motion is called:





34. The centroid of a triangle is at:





35. The unit of torque is:





36. D’Alembert’s principle converts a dynamic problem into:





37. Free body diagram is used to:





38. The lever is based on the principle of:





39. The acceleration due to gravity (g) on Earth is approximately:





40. The law of triangle of forces is used for:





41. The product of force and time is called:





42. The reaction at a smooth surface is always:





43. A simply supported beam has supports at:





44. The type of friction which occurs during motion is:





45. The center of percussion is the point:





46. The resultant of two equal opposite parallel forces is:





47. A truss is a structure composed of:





48. A pendulum is an example of:





49. The term “modulus of elasticity” refers to:





50. The force required to move a body up an inclined plane is minimum when the angle of inclination is:





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