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17 Cards in this Set
- Front
- Back
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A good hydraulic fluid must possess these properties |
Adequate fluidity, must be incompressible, good lubricating properties, inhibit corrosion, resist foaming |
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internal resistance to flow of liquid |
Viscosity |
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The temperature at which a liquid will give off vapor and sufficient quantity to ignite momentarily |
Flashpoint |
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The 3 types of hydraulic fluid currently being used in civilian aircraft |
Mineral (petroleum), vegetable, phosphate ester ( synthetic) base |
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Is it permissible to mix different types of hydraulic fluid |
No |
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Vegetable base hydraulic fluid is esentially what and what |
Castor oil and Isopropyl alcohol |
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Vegetable base hydraulic fluid is dyed |
Clear to blue green to blue |
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What is the most widely used hydraulic fluid and general aviation aircraft today |
Mineral base |
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Synthetic hydraulic fluids were developed to provide what kind of resistance |
Fire resistance |
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Skydrol is what color |
Purple |
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If skydrol is accidentally spilled is should be immediately cleaned with |
Soap and water |
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Name the fluid used to Flush vegetable base hydraulic systems |
Alcohol |
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Fluid used to flush mineral hydrolic fluid systems |
Naphta, varsol, Stoddard solvent |
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Fluid used to flush synthetic hydraulic systems |
Trichlorethylene |
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Name the material used for seals in vegetable hydraulic systems |
Natural rubber |
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Name the material used for seals In mineral Hydraulic systems |
Neoprene, buna-s, buna-n |
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Name the material Used for seals in synthetic hydraulic systems |
Butyl |
