**Kinematic Analysis | TOM Interview Question and Answers**

**Kinematic Analysis | TOM Interview, viva ,oral Question and Answers**

**1. What are the components of acceleration?**

- Radial component of acceleration
- Tangential component of acceleration

**2. Write an expression for find number of instantaneous centers in a mechanism.**

N=n(n-1)/2, n-no of links

**3. What is expression for Coriolis componenet of acceleration?**

a BC =2rω

Where ω=Angular velocity of ‘OA’

V=Linear velocity of ‘B’

**4. How can we represent the direction of linear velocity of any point on a link with respect to another point on the same link?**

The direction of linear velocity of any point on a link with respect to another point on the same link the direction is perpendicular to the line joining the points.

**5. What are the important concepts in velocity analysis?**

1. The absolute velocity of any point on a mechanism is the velocity of that point with reference to ground.

2. Relative velocity describes how one point on a mechanism moves relative to another point on the mechanism.

**6. Define Instantaneous centre.**

Instantaneous centre of a moving body may be defined as that centre which goes on changing from one instant to another.

**7. Define Instantaneous centre**

Instantaneous axis is a line drawn through an instantaneous centre and perpendicular to the plane of motion.

**8. How to represent the direction of linear velocity of any point on a link with respect to another point on the same link?**

The direction of linear velocity of any point on a link with respect to another point on the same link is perpendicular to the line joining the points.

**9. Define Kennedy’s theorem.**

The Kennedy’s theorem states that if three bodies move relatively to each other, they have three instantaneous centers and lie on a straight line.

**10. Define displacement.**

It may be defined as the distance moved by a body with respect to a fixed certain fixed point. When there is no displacement in a body it is said to be at rest and when it is being displaced, it is said to be in motion.

**11. What are the types of motions?**

1. Rectilinear motion.

2. Curvilinear motion.

3. Circular motion.

**12. What are the methods for determining the velocity of a body?**

Important methods for determining the velocity of a body are:

1. Graphical method: i) Relative velocity method

ii) Instantaneous centre method

2. Analytical method.

**13. Define velocity.**

Velocity may be defined as the rate of change of displacement of a body with respect to the time. Since the velocity has both magnitude and direction, therefore it is a vector quantity.

**14. Define speed.**

Speed may be defined as the rate of change of linear displacement of a body with respect to the time. Since the speed is irrespective of its direction, therefore it is a scalar quantity.

**15. What is deceleration?**

The negative acceleration is also known as deceleration or retardation.

**16. Define Acceleration.**

The rate of change of velocity with respect to time is known as acceleration.

**17. Define coincident points.**

When a point on one link is sliding along another rotating link, then the point is known as coincident point.

**18. Define centrode.**

The locus of all instantaneous centre’s (i.e., I1, I2,…) is known as centrode.

**19. Define Axode.**

The locus of all instantaneous axis is known as axode.

**20. Define Body centrode.**

The locus of all instantaneous centre relative to the body itself is called the body centrode.

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