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796.2 N/m^2

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Q: In a hydraulic device the surface area of the small piston is 20cm and the surface area of the piston is 80cm to lift a 400 N barrel placed on the large piston you must apply a force of?
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Related questions

What are the parts of hydraulic cylinders?

There are many parts to hydraulic cylinders. The main parts are the barrel, the base, the head, the piston, the piston rod, and numerous seals. They operate using hydraulic fluid.


How will the work done on the input piston compare to the work done by the output piston in a hydraulic device?

The work done is equal


How do you calculate force for hydraulics?

You get the force exerted by a hydraulic piston by taking the pressure times the surface area of the piston.


How can you increase the force a hydraulic device produces without increasing the size of the force you apply to the small piston?

You reduce the diameter of the small piston. Or reduce the diameter and increase the travel of the small piston if you want the large piston to maintain it's previous range of travel.


Is there any Relation between stroke of hydraulic jack and its lifting capacity?

No, not really. Force in hydraulics is only dependent on the force applied to the fluid and the surface area of the hydraulics piston and can be calculated by force in fluid*surface area. This means that the bore which is directly related to the surface area of the hydraulic piston helps to determine the lifting capacity of a hydraulic jack, but that the stroke of the hydraulic jack does not. There are a few reasons however why hydraulic jacks that have a higher lifting capacity might have a shorter stroke. First of all, the greater the surface area of the hydraulic used on the lift, the more fluid must be pumped to raise the lift a certain distance, so you would need more fluid to raise the lift a certain distance. Also, when designing such a mechanism the engineers might have considered the horizontal load on the hydraulic's piston, that might bend it more if the stroke were longer.


Why is force exerted on a small piston multiplied when it acts on a larger piston?

A hydraulic system multiplies force by applying the force to a small surface are. The increase in pressure is then transmitted to another part of the confined fluid, which pushes on a larger surface area


What is hydraulic ram servo?

A hydraulic piston is also known as a servo or a motor.


Why is force exerted on a small piston multiplied when it acts on a larger pistion?

Suppose the smaller piston was 1 square cm and the large piston was 7 square cm. If you pushed on the small piston, the force would be multiplied 7 times on the large piston. The Hydraulic System is a system that uses liquids to transmit pressure and multiply force in a confined fluid. Hope this helped. (:


Hydraulic cylinder retract force on piston with rod size reduced by half at piston end?

http://www.engineeringtoolbox.com/hydraulic-force-calculator-d_1369.html


What is a piston on a air soft gun?

A piston is the device inside the air chamber that compresses the air that is needed to propel the BB when it is fired. Every time you pull the trigger the piston forced air in the air chamber forward and the air fires the BB down the barrel.


If hydraulic pressure is lost in the primary circuit how does the secondary piston actuate?

Mechanical pressure from the primary piston


How is the secondary piston actuated if hydraulic pressure is lost in the primary circuit?

Mechanical pressure from the primary piston