# 4

## Explain epicyclic gear train with neat sketch.

## Draw a labelled sketch of multiplate clutch and state its applications.

Applications- Automobiles like scooters, motorcycles, textile and paper industries, machine tools

## Explain condition for maximum power transmission.

## Explain the compound gear train with neat sketch and write down the velocity ratio’s equation.

## A multiplate clutch has three pairs of contact surfaces. The outer and inner radii .......

## Explain the working of centrifugal clutch with neat sketch.

**centrifugal Clutch:**

• A centrifugal clutch is a clutch that uses centrifugal force to connect two concentric shafts, with the driving shaft nested inside the driven shaft.

• It consists of number of shoe on the inside of a rim of pulley. The outer surface of pulley is covered with friction material.

• These shoes move radially in guides.

• As the speed of the shaft increase, the centrifugal force on the shoes increases.

## Explain the Klein's construction to determine velocity and acceleration of single slider crank mechanism.

## Define linear velocity, angular velocity, absolute velocity and state the relation between linear velocity and angular velocity.

Linear Velocity: It may be defined as the rate of change of linear displacement of a body with respect to the time. Since velocity is always expressed in a particular direction, therefore it is a vector quantity. Mathematically, linear velocity, v = ds/dt

Angular Velocity: It may be defined as the rate of change of angular displacement with respect to time. It is usually expressed by a Greek letter ɷ (omega). Mathematically, angular velocity, ɷ = dƟ /dt