Mechanical Engineering Exam > Mechanical Engineering Questions > A universal joint is an example ofa)lower pai...
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A universal joint is an example of
- a)lower pair
- b)higher pair
- c)rolling pair
- d)sliding pair
Correct answer is option 'A'. Can you explain this answer?
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A universal joint is an example ofa)lower pairb)higher pairc)rolling p...
Introduction:
A universal joint, also known as a U-joint, is a mechanical device that connects two shafts at an angle. It is commonly used in applications where rotational movement needs to be transmitted between two shafts that are not in line with each other. The U-joint allows for the transmission of torque while accommodating misalignment between the shafts.
Explanation:
The given question asks for the classification of a universal joint based on its type of pair. In mechanical engineering, pairs are classified based on the type of motion they allow between two components. There are four types of pairs:
1. Lower pair: A lower pair consists of two surfaces in contact with each other and allows relative motion between the components in the form of rotation or sliding. Examples include revolute joints and sliding joints.
2. Higher pair: A higher pair consists of two surfaces in contact with each other and allows relative motion between the components in the form of rolling. Examples include rolling contact bearings and gears.
3. Rolling pair: A rolling pair allows relative motion between the components in the form of rolling. It consists of two non-parallel axes that intersect at a common point. Examples include ball bearings and roller bearings.
4. Sliding pair: A sliding pair allows relative motion between the components in the form of sliding. It consists of two parallel or non-parallel axes. Examples include sliding contact bearings and sliding gears.
Universal Joint:
A universal joint is classified as a lower pair. This is because a U-joint allows for rotational motion between two shafts that are not in line with each other. The relative motion between the components of a U-joint is a combination of rotation and sliding. The main purpose of a U-joint is to transmit torque while accommodating misalignment between the shafts. It consists of a cross-shaped yoke and four bearings that connect the yoke to the shafts. The bearings allow for rotation and sliding motion, making it a lower pair.
Conclusion:
In summary, a universal joint is classified as a lower pair because it allows for rotational motion and sliding between two shafts that are not in line with each other. It is an important mechanical device used in various applications to transmit torque and accommodate misalignment.
A universal joint, also known as a U-joint, is a mechanical device that connects two shafts at an angle. It is commonly used in applications where rotational movement needs to be transmitted between two shafts that are not in line with each other. The U-joint allows for the transmission of torque while accommodating misalignment between the shafts.
Explanation:
The given question asks for the classification of a universal joint based on its type of pair. In mechanical engineering, pairs are classified based on the type of motion they allow between two components. There are four types of pairs:
1. Lower pair: A lower pair consists of two surfaces in contact with each other and allows relative motion between the components in the form of rotation or sliding. Examples include revolute joints and sliding joints.
2. Higher pair: A higher pair consists of two surfaces in contact with each other and allows relative motion between the components in the form of rolling. Examples include rolling contact bearings and gears.
3. Rolling pair: A rolling pair allows relative motion between the components in the form of rolling. It consists of two non-parallel axes that intersect at a common point. Examples include ball bearings and roller bearings.
4. Sliding pair: A sliding pair allows relative motion between the components in the form of sliding. It consists of two parallel or non-parallel axes. Examples include sliding contact bearings and sliding gears.
Universal Joint:
A universal joint is classified as a lower pair. This is because a U-joint allows for rotational motion between two shafts that are not in line with each other. The relative motion between the components of a U-joint is a combination of rotation and sliding. The main purpose of a U-joint is to transmit torque while accommodating misalignment between the shafts. It consists of a cross-shaped yoke and four bearings that connect the yoke to the shafts. The bearings allow for rotation and sliding motion, making it a lower pair.
Conclusion:
In summary, a universal joint is classified as a lower pair because it allows for rotational motion and sliding between two shafts that are not in line with each other. It is an important mechanical device used in various applications to transmit torque and accommodate misalignment.
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A universal joint is an example ofa)lower pairb)higher pairc)rolling paird)sliding pairCorrect answer is option 'A'. Can you explain this answer?
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