Advertisements
Advertisements
प्रश्न
With reference to the terms Mechanical Advantage, Velocity Ratio and efficiency of a machine, name and define the term that will not change for the machine of a given design.
Advertisements
उत्तर
Velocity ratio.
It is the ratio of the velocity of effort to the velocity of the load.
`V.R = V_E/V_L`
APPEARS IN
संबंधित प्रश्न
A scissor is a _________ multiplier
Draw a diagram to show how a single pulley can be used so as to have its ideal M.A= 2.
Name a machine to change the point of application of force ?
‘The force needed to push a load up an inclined plane is less than the force needed to lift it directly’ Give a reason.
Name a machine which is used to multiply speed ?
The diagram below shows a claw hammer used to remove a nail :
(i) To which class of lever does it belong ?
(ii) Give one more example of the same class of lever mentioned by you in (i) for which the mechanical advantage is greater than one.
What is the purpose of a machine?
Give an example for each of the following uses of a machine:
to obtain gain in force,
Shows a lemon crusher.
- In the diagram, mark the position of the fulcrum F and the line of action of load L and effort E.
- Name the class of lever
What is a machine?
