MCQOPTIONS
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MCQOPTIONS
This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Engineering (MCQ) questions and answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
To avoid jump phenomenon, which of the following condition should be true?Where,P = preload in spring, = cam speed, k = stiffness of spring, e = eccentricity |
| A. | > (me) / ( P + 2 ke) |
| B. | > ( P + 2 ke) / (me) |
| C. | < ( P + 2 ke) / (me) |
| D. | < (me) / ( P + 2 ke) |
| Answer» D. < (me) / ( P + 2 ke) | |
| 2. |
Determine axial force acting on bevel gears when tangential force of 2700 N acts on it. Pitch cone angle = 12.36 & Pressure angle = 30 |
| A. | 295.82 N |
| B. | 333.67 N |
| C. | 347.26 N |
| D. | insufficient data |
| Answer» C. 347.26 N | |
| 3. |
If lead angle of worm is 13 and lead of worm is 40 mm. Find pitch circular diameter of worm |
| A. | 53.22 mm |
| B. | 55.15 mm |
| C. | 27.67 mm |
| D. | None of the above |
| Answer» C. 27.67 mm | |
| 4. |
Calculate the limiting speed to avoid cam jump, if an eccentric plate circular cam has eccentricity of 30 mm and provides motion to the follower of 4 kg mass. Stiffness of the spring is 30 N/mm. Preload in the spring is 600 N |
| A. | 70.81 rad/sec |
| B. | 60.76 rad/sec |
| C. | 141.42 rad/sec |
| D. | None of the above |
| Answer» D. None of the above | |