MCQOPTIONS
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MCQOPTIONS
This section includes 13 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 horizontal bar 1.5 metres long and of small cross-section rotates about vertical axis through one end. It accelerates uniformly from 1200 r.p.m. to 1500 r.p.m. in an interval of 5 seconds. What is the tangential component of the acceleration of the mid-point of the bar after 5 seconds after the acceleration begins ? |
| A. | 18287 m/s2 |
| B. | 18387 m/s2 |
| C. | 18487 m/s2 |
| D. | 18587 m/s2 |
| Answer» D. 18587 m/s2 | |
| 2. |
A horizontal bar 1.5 metres long and of small cross-section rotates about vertical axis through one end. It accelerates uniformly from 1200 r.p.m. to 1500 r.p.m. in an interval of 5 seconds. What is the normal component of the acceleration of the mid-point of the bar after 5 seconds after the acceleration begins ? |
| A. | 2.7 m/s2 |
| B. | 3.7 m/s2 |
| C. | 4.7 m/s2 |
| D. | 5.7 m/s2 |
| Answer» D. 5.7 m/s2 | |
| 3. |
A horizontal bar 1.5 metres long and of small cross-section rotates about vertical axis through one end. It accelerates uniformly from 1200 r.p.m. to 1500 r.p.m. in an interval of 5 seconds. What is the linear velocity at the end of the interval ? |
| A. | 235.5 m/s |
| B. | 335.5 m/s |
| C. | 435.5 m/s |
| D. | 535.5 m/s |
| Answer» B. 335.5 m/s | |
| 4. |
A wheel accelerates uniformly from rest to 2000 r.p.m. in 20 seconds.How many revolutions does the wheel make in attaining the speed of 2000 r.p.m.?a) 333.4b) 444.4c) 555.4d) 666.4 |
| A. | 333.4b) 444.4c) 555.4d) 666.4a) 10.475 rad/s2 |
| B. | 444.4c) 555.4d) 666.4a) 10.475 rad/s2b) 11.475 rad/s2 |
| C. | 555.4d) 666.4a) 10.475 rad/s2b) 11.475 rad/s2c) 12.475 rad/s2 |
| D. | 666.4a) 10.475 rad/s2b) 11.475 rad/s2c) 12.475 rad/s2d) 13.475 rad/s2 |
| Answer» B. 444.4c) 555.4d) 666.4a) 10.475 rad/s2b) 11.475 rad/s2 | |
| 5. |
A wheel accelerates uniformly from rest to 2000 r.p.m. in 20 seconds. What is its angular acceleration? |
| A. | 10.475 rad/s2 |
| B. | 11.475 rad/s2 |
| C. | 12.475 rad/s2 |
| D. | 13.475 rad/s2 |
| Answer» B. 11.475 rad/s2 | |
| 6. |
A_HORIZONTAL_BAR_1.5_METRES_LONG_AND_OF_SMALL_CROSS-SECTION_ROTATES_ABOUT_VERTICAL_AXIS_THROUGH_ONE_END._IT_ACCELERATES_UNIFORMLY_FROM_1200_R.P.M._TO_1500_R.P.M._IN_AN_INTERVAL_OF_5_SECONDS._WHAT_IS_THE_NORMAL_COMPONENT_OF_THE_ACCELERATION_OF_THE_MID-POINT_OF_THE_BAR_AFTER_5_SECONDS_AFTER_THE_ACCELERATION_BEGINS_??$ |
| A. | 2.7 m/s<sup>2</sup> |
| B. | 3.7 m/s<sup>2</sup> |
| C. | 4.7 m/s<sup>2</sup> |
| D. | 5.7 m/s<sup>2</sup> |
| Answer» D. 5.7 m/s<sup>2</sup> | |
| 7. |
A_horizontal_bar_1.5_metres_long_and_of_small_cross-section_rotates_about_vertical_axis_through_one_end._It_accelerates_uniformly_from_1200_r.p.m._to_1500_r.p.m._in_an_interval_of_5_seconds._What_is_the_tangential_component_of_the_acceleration_of_the_mid-point_of_the_bar_after_5_seconds_after_the_acceleration_begins_?$ |
| A. | 18287 m/s<sup>2</sup> |
| B. | 18387 m/s<sup>2</sup> |
| C. | 18487 m/s<sup>2</sup> |
| D. | 18587 m/s<sup>2</sup> |
| Answer» D. 18587 m/s<sup>2</sup> | |
| 8. |
A horizontal bar 1.5 metres long and of small cross-section rotates about vertical axis through one end. It accelerates uniformly from 1200 r.p.m. to 1500 r.p.m. in an interval of 5 seconds. What is the linear velocity at the beginning? |
| A. | 288.6 m/s |
| B. | 388.6 m/s |
| C. | 488.6 m/s |
| D. | 188.6 m/s |
| Answer» E. | |
| 9. |
A wheel accelerates uniformly from rest to 2000 r.p.m. in 20 seconds.How many revolutions does the wheel make in attaining the speed of 2000 r.p.m.? |
| A. | 333.4 |
| B. | 444.4 |
| C. | 555.4 |
| D. | 666.4 |
| Answer» B. 444.4 | |
| 10. |
A car starts from rest and accelerates uniformly to a speed of 72 km. p.h. over a distance of 500 m. A further acceleration raises the speed to 90 km. p.h. in 10 seconds.The brakes are now applied to bring the car to rest under uniform retardation in 5 seconds. Find the distance travelled during braking. |
| A. | 200 m |
| B. | 300 m |
| C. | 225 m |
| D. | 335 m |
| Answer» D. 335 m | |
| 11. |
A car starts from rest and accelerates uniformly to a speed of 72 km. p.h. over a distance of 500 m. If a further acceleration raises the speed to 90 km. p.h. in 10 seconds, find this acceleration and the further distance moved. |
| A. | 0.3 m/s<sup>2</sup> |
| B. | 0.4 m/s<sup>2</sup> |
| C. | 0.5 m/s<sup>2</sup> |
| D. | 0.6 m/s<sup>2</sup> |
| Answer» D. 0.6 m/s<sup>2</sup> | |
| 12. |
A car starts from rest and accelerates uniformly to a speed of 72 km. p.h. over a distance of 500 m. Calculate the time taken to attain the speed. |
| A. | 50 s |
| B. | 60 s |
| C. | 70 s |
| D. | 80 s |
| Answer» B. 60 s | |
| 13. |
A car starts from rest and accelerates uniformly to a speed of 72 km. p.h. over a distance of 500 m. Calculate the acceleration. |
| A. | 0.3 m/s<sup>2</sup> |
| B. | 0.4 m/s<sup>2</sup> |
| C. | 0.5 m/s<sup>2</sup> |
| D. | 0.6 m/s<sup>2</sup> |
| Answer» C. 0.5 m/s<sup>2</sup> | |