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It's because liquids can't be compressed - only pressurized. Gases OTOH can be compressed. It's like the difference between poking at something with a stiff rod, or with a sponge. With a liquid, whatever force you put in at one end is what you get out at the other - just what you want if you're planning to build a closely controlled system like brakes.
If you have gas, it'll be like having a big soft sponge between you and whatever it is that you are pushing on. First push will only squish up the sponge w/o anything happening to the object. Only when you've compressed the sponge will the object begin to move. And then when you stop pushing, the springiness in the sponge will keep pushing a bit. This is gases and pneumatics, not what you want in a closely controlled system like brakes.
Gases compress. Liquids, in a hydraulic brake system, don't compress. A liquid-filled hydraulic brake system will produce more force on the wheel cylinder than one with a gas-liquid mixture.
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∙ 11y ago
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Why do hydraulic systems only work with liquids not gases?
Because the gas can not deliver power. Pressure of the gases are compressed. Liquids do not compress well and transmit power.
Why is conduction useful?
Conduction is useful because it allows you to heat solids. FACT: Solids heat faster than liquids and gases.
How are gases and liquids alike?
liquids and gases both have an Indefinite shape. nd some liquids turn into gases with heat.
Which substances can heat travel through by convection?
Fluids, aka liquids and gases.
In what way are liquids and gases alike?
Liquids and Gases are both matter, and are not solids.
What is hydraulic efficiency?
Hydraulic efficiency is the rate at which a hydraulic consumes gases and liquids to find different ways to make our lifestyles more efficient.
Why do hydraulic systems only work with liquids not gases?
Because the gas can not deliver power. Pressure of the gases are compressed. Liquids do not compress well and transmit power.
Why is the pneumatic system less reliable then the hydraulic system?
Gases can be compressed. Liquids can't.
Why are liquids sometimes more practical to use in a hydraulic system than gases?
Because liquids cannot be easily compressed into a smaller space.
Why are liquids easilier to be compressed in hydraulic brakes than gases?
You've got it all wrong, liquids can't be compressed - only pressurized. Gases OTOH can be compressed. It's like the difference between poking at something with a stiff rod, or with a sponge. With a liquid, whatever force you put in at one end is what you get out at the other - just what you want if you're planning to build a closely controlled system like brakes.
Why is conduction useful?
Conduction is useful because it allows you to heat solids. FACT: Solids heat faster than liquids and gases.
How are gases and liquids alike?
liquids and gases both have an Indefinite shape. nd some liquids turn into gases with heat.
Which substances can heat travel through by convection?
Fluids, aka liquids and gases.
How can liquids become gases and gases become liquids?
vaporization
In what way are liquids and gases alike?
Liquids and Gases are both matter, and are not solids.
When molecules in liquids and gases are heated they?
When molecules in liquids and gases are heated they move faster
A process by which energy is transferred in gases and liquids?
A process by which energy is tranfered gases and liquids
