Advertisements
Advertisements
प्रश्न
Define Velocity Ratio
उत्तर
The ratio of the velocity of effort to the velocity of the load is called the velocity ratio of the machine.
It is also defined as the ratio of the displacement of effort to the displacement of the load.
Velocity Ratio (V.R.) =`"d"_"E"/"d"_"L"`
APPEARS IN
संबंधित प्रश्न
State whether the following statement is True or False.
A machine performs work by itself.
Fill in the blank:
The useful work done by an actual machine is always ............ than the work done on the machine.
State if the following statement is true or false. Correct the statement if it is false.
Work done by a machine is always more than the work done on a machine.
What do you understand by a simple machine?
Derive the relationship between mechanical advantage, velocity ratio and efficiency of a machine.
State whether the mechanical advantage of an inclined plane is equal to 1, less than 2 or greater than 1?
Define Simple machine
What is the relationship between the mechanical advantage and the velocity ratio for:
(i) An ideal machine,
(ii) A practical machine.
Classify the following as a lever, a pulley and an inclined plane:
A knife
Name a machine for each of the following uses:
- to multiply the force,
- to change the point of application of force,
- to change the direction of force,
- to obtain the gain in speed.
