Mechanical Engineering Exam > Mechanical Engineering Questions > Consider the following statements:1. For a ra...
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Consider the following statements:
1. For a radial-translating roller follower, parabolic motion of the follower is very suitable for high speed cams.
2. Pitch point on pitch circle of a cam corresponds to the point of maximum pressure angle.
2. Pitch point on pitch circle of a cam corresponds to the point of maximum pressure angle.
Which of the statements given above is/are correct?
- a)1 only
- b)2 only
- c)Both 1 and 2
- d)Neither 1 nor 2
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
Consider the following statements:1. For a radial-translating roller f...
For high speed use cycloidal motion.
Pitch point on pitch circle of a cam corresponds to the point of maximum pressure angle.
Pitch point on pitch circle of a cam corresponds to the point of maximum pressure angle.
Most Upvoted Answer
Consider the following statements:1. For a radial-translating roller f...
Incorrect Statement 1: Parabolic motion of the follower is not suitable for high-speed cams.
- A radial-translating roller follower is a mechanism used in cam systems where the follower moves radially in and out as it follows the contour of the cam.
- The motion of the follower can be controlled by the shape of the cam profile.
- The motion of the follower is typically desired to be smooth and continuous.
- Parabolic motion is not suitable for high-speed cams because it results in sudden changes in acceleration, leading to jerky motion of the follower.
- In high-speed applications, such as in automotive engines, it is important to have a follower motion that is as smooth as possible to reduce wear and tear and ensure proper functioning of the system.
- Therefore, parabolic motion is not suitable for high-speed cams, making statement 1 incorrect.
Incorrect Statement 2: The pitch point on the pitch circle does not correspond to the point of maximum pressure angle.
- The pitch point is the point on the pitch circle where the line of action of the cam intersects the line of action of the follower.
- The pressure angle is the angle between the direction of motion of the follower and the normal to the cam profile at the pitch point.
- The pressure angle is an important parameter in cam design as it affects the force and wear on the follower.
- The maximum pressure angle occurs at the point on the cam profile where the slope is the steepest.
- This point may or may not correspond to the pitch point on the pitch circle.
- The pitch point can be determined based on the desired motion of the follower and is not directly related to the maximum pressure angle.
- Therefore, statement 2 is also incorrect.
Conclusion:
- Both statement 1 and statement 2 are incorrect.
- Parabolic motion of the follower is not suitable for high-speed cams, and the pitch point on the pitch circle does not correspond to the point of maximum pressure angle.
- A radial-translating roller follower is a mechanism used in cam systems where the follower moves radially in and out as it follows the contour of the cam.
- The motion of the follower can be controlled by the shape of the cam profile.
- The motion of the follower is typically desired to be smooth and continuous.
- Parabolic motion is not suitable for high-speed cams because it results in sudden changes in acceleration, leading to jerky motion of the follower.
- In high-speed applications, such as in automotive engines, it is important to have a follower motion that is as smooth as possible to reduce wear and tear and ensure proper functioning of the system.
- Therefore, parabolic motion is not suitable for high-speed cams, making statement 1 incorrect.
Incorrect Statement 2: The pitch point on the pitch circle does not correspond to the point of maximum pressure angle.
- The pitch point is the point on the pitch circle where the line of action of the cam intersects the line of action of the follower.
- The pressure angle is the angle between the direction of motion of the follower and the normal to the cam profile at the pitch point.
- The pressure angle is an important parameter in cam design as it affects the force and wear on the follower.
- The maximum pressure angle occurs at the point on the cam profile where the slope is the steepest.
- This point may or may not correspond to the pitch point on the pitch circle.
- The pitch point can be determined based on the desired motion of the follower and is not directly related to the maximum pressure angle.
- Therefore, statement 2 is also incorrect.
Conclusion:
- Both statement 1 and statement 2 are incorrect.
- Parabolic motion of the follower is not suitable for high-speed cams, and the pitch point on the pitch circle does not correspond to the point of maximum pressure angle.
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Consider the following statements:1. For a radial-translating roller follower, parabolic motion of the follower is very suitable for high speed cams.2. Pitch point on pitch circle of a cam corresponds to the point of maximum pressure angle.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'D'. Can you explain this answer?
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Consider the following statements:1. For a radial-translating roller follower, parabolic motion of the follower is very suitable for high speed cams.2. Pitch point on pitch circle of a cam corresponds to the point of maximum pressure angle.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'D'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Consider the following statements:1. For a radial-translating roller follower, parabolic motion of the follower is very suitable for high speed cams.2. Pitch point on pitch circle of a cam corresponds to the point of maximum pressure angle.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements:1. For a radial-translating roller follower, parabolic motion of the follower is very suitable for high speed cams.2. Pitch point on pitch circle of a cam corresponds to the point of maximum pressure angle.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'D'. Can you explain this answer?.
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