Advertisements
Advertisements
प्रश्न
State two uses of a hydraulic press.
Advertisements
उत्तर
(i) A hydraulic press can be used for extracting the juice of sugarcane, sugar beet, etc.
(ii) A hydraulic press can be used for pressing cotton bales, quilts, books, etc.
APPEARS IN
संबंधित प्रश्न
Consider the equations `P=lim_(triangles->0)"F"/(triangle"S")` and P1 - P2 = pgz. In an elevator accelerating upward
Explain the principle of a hydraulic machine. Name two devices which work on this principle.
In a hydraulic machine, a force of 2 N is applied on the piston of area of cross section 10 cm2. What force is obtained on its piston of area of cross section 100 cm2 ?
P is the pressure at some point in a liquid. State whether pressure P is a scalar or vector quantity.
State two applications of Pascal's law.
For what purpose is the acid battery hydrometer used?
Match the following:
| 1. | Hydraulic press | a. | Archimedes |
| 2. | Cartesian Diver | b. | Floatation |
| 3. | Hydrostatic Balance | c. | Pascal’s law |
| 4. | Hydrometer | d. | Buoyancy |
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:
Consider a water tank shown in the figure. It has one wall at x = L and can be taken to be very wide in the z direction. When filled with a liquid of surface tension S and density ρ, the liquid surface makes angle θ(θ << 1) with the x-axis at x = L. If y(x) is the height of the surface then the equation for y(x) is:

(take θ(x) = sin θ(x) = tan θ(x) = `dy/dx`, g is the acceleration due to gravity)
