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A kinematic chain is known as a mechanism when

A. None of the links is fixed

B. One of the links is fixed

C. Two of the links are fixed

D. None of these

Answer: Option B

Solution(By Examveda Team)

A kinematic chain is a combination of links connected in a specific order, allowing relative motion between them. When one of the links in a kinematic chain is fixed or stationary, it is termed a mechanism. This fixed link provides a frame of reference against which the motions of other links are observed. The fixed link is often referred to as the "ground" or "frame" link, and it serves as a foundation for the movement and analysis of the remaining links in the kinematic chain.

By fixing a single link, the entire kinematic chain becomes a functional system with controlled or constrained motion. This is a fundamental concept in the study of mechanisms, which are essential components in various mechanical devices and machines used in engineering applications.

Note: Options A and C are not accurate because the presence of fixed links is essential to define a mechanism. Option D is also not correct as one of the options (Option B) is indeed the correct condition for a kinematic chain to be termed a mechanism.

This Question Belongs to Mechanical Engineering >> Theory Of Machine

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Comments ( 3 )

  1. Muhammad Basit
    Muhammad Basit :
    2 years ago

    why one of the links is fixed

  2. K Sharath
    K Sharath :
    2 years ago

    When one of the kinematic links is fixed in a kinematic chain, then the chain is known as the Mechanism. Usually, a kinematic chain having four or less kinematic links is known as the Simple Mechanism. A Kinematic chain having more than four kinematic links known as the Compound kinematic chain or Compound Mechanism.

  3. Manishi Rupena
    Manishi Rupena :
    2 years ago

    if each and every link is connected with two other links then the kinematic chain formed will be

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