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Question: Which of the following is correct for the statement “Hydraulic press works on the principle of Pasca...

Which of the following is correct for the statement “Hydraulic press works on the principle of Pascal’s principle”?
A.{\text{A}}{\text{.}} True
B.{\text{B}}{\text{.}} False

Explanation

Solution

Hint: Here, we will proceed by stating Pascal's law of pressure. Then, we will discuss the working principle of hydraulic press and what happens when a force is applied to the plunger of the hydraulic press.

Complete step-by-step answer:

In fluid (gas or liquid) mechanics, Pascal 's principle, also called Pascal 's law, states that in a fluid at rest in a closed container, a pressure change in one part is transmitted without loss to every part of the fluid and to the container walls. The French scientist Blaise Pascal had first outlined the principle.

Pressure is equal to the force that is divided by the region it operates upon. Pascal 's principle is that a pressure exerted on a piston in a hydraulic system causes an equal increase in pressure on another piston in the system.

When the second piston has an area 10 times greater than the first, so the force on the second piston is 10 times greater, while the pressure being the same as the pressure on the first piston. The hydraulic press, based on the Pascal principle, which is used in such applications as hydraulic brakes, exemplifies this effect.

Pascal also found that the pressure at a point in a fluid at rest is the same in all directions. The pressure on all planes going through a particular point will be the same. This fact is also known as Pascal's principle or the law of Pascal.

A hydraulic press comprises two cylinders that are connected to each other. There is hydraulic fluid in each cylinder, and one cylinder is bigger than the other. The bigger cylinder is called the Ram, and the smaller is known as the Plunger.

Liquids don't quickly compress, which is why they 're used in hydraulic presses. The hydraulic press works by pressing a small amount of force onto the plunger that presses the downstream fluid. This pressure is then evenly distributed which elevates the Ram in effect. Afterwards the pressure between the Plunger and the Ram acts to smash the object between them.

Clearly, we can see that the statement “Hydraulic press works on the principle of Pascal’s principle” is true.
Therefore, option A is correct.

Note: Pascal’s law is also used in hydraulic brakes that are present in cars, buses, etc. This law also shows applications in hydraulic jack which is mostly used to lift objects. This law also shows its applicability in the case of hydraulic pumps which are used to convert the mechanical energy into hydraulic energy.