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The lower pair is a
  • a)
    open pair
  • b)
    closed pair
  • c)
    sliding pair
  • d)
    point contact pair
  • e)
    does not exist
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
The lower pair is aa)open pairb)closed pairc)sliding paird)point conta...
Sliding pair has surface contact between surfaces so it is the lower pair
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Community Answer
The lower pair is aa)open pairb)closed pairc)sliding paird)point conta...
Sliding pair is a type of mechanical pair that is used to connect two machine elements that move relative to each other in a straight line. It is also known as a prismatic pair, and it allows for motion along a specific direction. Here are some of the characteristics of the sliding pair:

Characteristics of Sliding Pair:

- It is a type of lower pair that has two elements that are connected by a sliding or prismatic joint.
- The relative motion between the two elements in a sliding pair is along a straight line or a specific direction.
- The sliding pair provides one degree of freedom, which is the ability to move along the direction of the sliding joint.
- It is commonly used in machines and mechanisms that require linear motion, such as piston-cylinder arrangements, drawers, and sliding doors.
- The sliding pair is designed to minimize friction and wear between the two elements, and it can be lubricated to increase its efficiency and lifespan.

In summary, the sliding pair is a lower pair that allows for linear motion between two machine elements. It is commonly used in machines and mechanisms that require straight-line motion and can be lubricated to increase its efficiency and lifespan.
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