MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Machine Dynamics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
With increase in friction, coefficient of insensitiveness increases. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
For a porter governor, the following data is given:Mass of each ball = 5kgMass on the sleeve = 20KgLength of each arm = 20cmBall path at life = 12 cmPath at maximum speed = 16 cm, If there is a friction at the sleeve of 10 N, find the coefficient of insensitiveness. |
| A. | 4% |
| B. | 6% |
| C. | 5% |
| D. | 7% |
| Answer» B. 6% | |
| 3. |
For a porter governor, the following data is given:Mass of each ball = 5kgMass on the sleeve = 20KgLength of each arm = 20cmBall path at life = 12 cmPath at maximum speed = 16 cmCalculate range of speed in rpm. |
| A. | 25.9 |
| B. | 51.8 |
| C. | 12.9 |
| D. | 31.2 |
| Answer» B. 51.8 | |
| 4. |
For a porter governor, the following data is given:Mass of each ball = 3kgMass on the sleeve = 15KgLength of each arm = 20cmBall path at life = 12 cmPath at maximum speed = 16 cm, If there is a friction at the sleeve of 10 N, find the coefficient of insensitiveness. |
| A. | 11.3% |
| B. | 5.00% |
| C. | 8.66% |
| D. | 5.66% |
| Answer» E. | |
| 5. |
For a porter governor, the following data is given:Mass of each ball = 3kgMass on the sleeve = 15KgLength of each arm = 20cmBall path at life = 12 cmPath at maximum speed = 16 cmCalculate range of speed. |
| A. | 14.15 rpm |
| B. | 28.3 rpm |
| C. | 56.9 rpm |
| D. | 32.4 rpm |
| Answer» C. 56.9 rpm | |
| 6. |
When the speed of the governor increases, which of the following effect does friction causes? |
| A. | Prevents downward movement of sleeve |
| B. | Prevents downward movement of sleeve |
| C. | Prevents radial inward movement of balls |
| D. | Increases upward movement of sleeve |
| Answer» C. Prevents radial inward movement of balls | |
| 7. |
Because of friction acting at the joints, while speeding up it prevents the downward movement of sleeve. |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
When the speed of the governor decreases, which of the following effect does friction causes? |
| A. | Prevents downward movement of sleeve |
| B. | Prevents downward movement of sleeve |
| C. | Prevents radial outward movement of balls |
| D. | Increases downward movement of sleeve |
| Answer» B. Prevents downward movement of sleeve | |