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What valve designed to allow fluid to pass through in one direction only?
Wiki User
∙ 11y ago
Check valve.
Wiki User
∙ 11y ago
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What are the flaps of tissue that allow flow of fluid in only one direction?
Flaps of tissue that force unidirectional flow are called valves.
What is the wave which propagates through an electrically conducting fluid in the direction of am applied magnetic field?
Alfven wave
How would you put impermeable in a sentence?
This is an impermeable because it will not allow any fluid to pass through it.
What is a procedure in which fluid is withdrawn from the space around the heart through a needle and a catheter is left in to allow for continued drainage?
pericardiectomy
Is a procedure in which fluid is withdrawn from the space around the heart through a needle and a catheter is left in to allow for continued drainage?
pericardiectomy
Direction of cerebrospinal fluid?
downward
What is the wave which prpogates through an electrically conducting fluid in the direction of an applied magnetic field?
Alfven wave. You'd have had an answer sooner without the typo!
Which sediment will allow water to pass through most easily?
sediments made of larger particles will have larger spaces between them, and thus allow greater fluid flow.
Why the tissue fluid can escape from capillaries but the erythrocytes can not?
The escape of tissue fluid from the capillaries occurs through small gaps present in the walls of the capillaries.These gaps are quite big so as to allow the passage of fairly large molecules but are not large enough to allow the escape of erythrocytes.
What is the formula for air resistance please state what each symbol or letter stands for?
Fair = -0.5pv2ACdV Keep in mind that the p is the greek symbol for density, and V has a circumflex (^) over it. I cant add greek letters to this box. This is negative because I assume that the direction the object is moving is the positive direction. Air resistance acts in the opposite direction. p - density of fluid (fluid is what the object is moving through whether it be liquid or atmosphere) v - velocity of object as it moves through fluid A - area of object Cd - Drag coefficient V - unit vector as indicative of direction object is moving in
Can a rock have small spaces but not allow water to flow through?
Yes, it can have porosity, or pore spaces, but may not have permeability, or the ability for a fluid to flow through connected pore spaces.
How does a 4 way hydraulic valve work?
4 Way hydraulic valves are often used with double acting cylinders. The valve usually has a handle that is used to change fluid direction. On the 4 way valve there will typically be 4 ports or openings for connections of hoses. Connecting hoses is done as follows: There will be an IN and OUT port and there will be an A and B port. (Different manufactures label differently so sometimes ports A & B are labeled 1 & 2 for example.) The in port is where the hose for fluid under pressure is connected. This may be from a hand operated or motor powered pump. The out port will be connected to the hose going to the fluid reservoir or tank. The A and B ports will be connected to the hydraulic cylinder. Now for the how it works part: Basically the handle controls a piston inside the valve. The piston is machined to allow fluid to run through it in different directions depending on the location inside the valve. There are two fluid paths inside the valve at the same time with fluid running two directions. One path is for the supply hydraulic fluid and one path is for the returning hydraulic fluid. When hydraulic fluid is pumped into the IN port and the handle is pushed one direction the fluid passes from the IN port and goes out the A port leading to one line or hose to the hydraulic cylinder. At the same time the valve allows fluid returning from the other hydraulic hose connected to the cylinder to come into port B and go out the OUT port on the valve back to the hydraulic tank. When the handle on the valve is pushed the opposite direction the fluid paths switch so the pumped fluid coming in the IN port goes out the B port to the hydraulic cylinder and fluid returns coming into the A port and goes through the OUT port back to the hydraulic tank. The 4 way valve allows fluid to run from the pump or (hydraulic fluid source) to the hydraulic cylinder in two different directions depending on the position of the handle so the cylinder can either be extended or retracted. When the handle on a valve is not pushed in either direction it is called a neutral or normal position. Some 4 way directional valves only allow fluid to pass when the handle is moved in one direction or the other while some allow the fluid to come into the IN port and go through to the OUT port when it is in the neutral position. The valves that allow fluid to pass from the IN to the OUT while in the neutral position are often used with powered hydraulic pumps. Once the pump is turned on the fluid begins to flow in and out of the valve until the handle is moved to direct fluid to the hydraulic cylinder.
