Advertisements
Advertisements
प्रश्न
Draw a simple diagram of a hydraulic jack and explain its working.
Advertisements
उत्तर
Working: When handle H of the lever is pressed down by applying an effort, the valve V opens because of increase in pressure in cylinder P. The liquid runs out from the cylinder P to the cylinder Q. As a result, the piston B rises up and it raises the car placed on the platform. When the car reaches the desired height, the handle H of the lever is no longer pressed. The valve V gets closed (since the pressure on the either side of the valve becomes same) so that the liquid may not run back from the cylinder Q to cylinder P.
APPEARS IN
संबंधित प्रश्न
State Pascal's law of transmission of pressure.
Select the correct option.
A dam for water reservoir is built thicker at the bottom than at the top because
The atmospheric pressure at a place is 650 mm of Hg. Calculate this pressure in Pascals (Pa).
How does the liquid pressure on a diver change according to the following condition:
When the driver moves to the greater depth?
State Pascal's law.
Assertion: Pascal’s law is the working principle of a hydraulic lift.
Reason: Pressure is thrust per unit area.
Match the following:
| 1. | Hydraulic press | a. | Archimedes |
| 2. | Cartesian Diver | b. | Floatation |
| 3. | Hydrostatic Balance | c. | Pascal’s law |
| 4. | Hydrometer | d. | Buoyancy |
What are Force multipliers?
An iceberg of density 700 kg/m3 is floating in the water of density 1000 kg/m3. The percentage of the volume of ice cube outside the water is:
