MCQOPTIONS
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MCQOPTIONS
This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Machine Kinematics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A small connecting rod of mass 1.5 kg is suspended in a horizontal plane by two wires 1.25 m long. The wires are attached to the rod at points 120 mm on either side of the centre of gravity. If the rod makes 20 oscillations in 40 seconds, find the mass moment of inertia of the rod about a vertical axis through the centre of gravity. |
| A. | 0.014 kg-m<sup>2</sup> |
| B. | 0.015 kg-m<sup>2</sup> |
| C. | 0.016 kg-m<sup>2</sup> |
| D. | 0.017 kg-m<sup>2</sup> |
| Answer» E. | |
| 2. |
A small connecting rod of mass 1.5 kg is suspended in a horizontal plane by two wires 1.25 m long. The wires are attached to the rod at points 120 mm on either side of the centre of gravity. If the rod makes 20 oscillations in 40 seconds, find the radius of gyration of the rod about a vertical axis through the centre of gravity. |
| A. | 107 mm |
| B. | 207 mm |
| C. | 307 mm |
| D. | 407 mm |
| Answer» B. 207 mm | |
| 3. |
In order to find the radius of gyration of a car, it is suspended with its axis vertical from three parallel wires 2.5 metres long. The wires are attached to the rim at points spaced 120 apart and at equal distances 250 mm from the axis. It is found that the wheel makes 50 torsional oscillations of small amplitude about its axis in 170 seconds. Find the radius of gyration of the wheel. |
| A. | 168 mm |
| B. | 268 mm |
| C. | 368 mm |
| D. | 468 mm |
| Answer» C. 368 mm | |
| 4. |
A connecting rod of mass 5.5 kg is placed on a horizontal platform whose mass is 1.5 kg. It is suspended by three equal wires, each 1.25 m long, from a rigid support. The wires are equally spaced round the circumference of a circle of 125 mm radius. When the c.g. of the connecting rod coincides with the axis of the circle, the platform makes 10 angular oscillations in 30 seconds. Determine the mass moment of inertia about an axis through its c.g. |
| A. | 0.198 kg-m<sup>2</sup> |
| B. | 1.198 kg-m<sup>2</sup> |
| C. | 2.198 kg-m<sup>2</sup> |
| D. | 3.198 kg-m<sup>2</sup> |
| Answer» B. 1.198 kg-m<sup>2</sup> | |