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Exam (elaborations)

AT 202 Exam 2 UPDATED QUESTIONS AND CORRECT ANSWERS

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AT 202 Exam 2 UPDATED QUESTIONS AND CORRECT ANSWERS The hydraulic system on the CRJ700 powers what components? - CORRECT ANSWER Primary/secondary flight controls, wheel brakes, nose wheel steering, landing gear extension and retraction, and thrust reversers Three types of principles of matter - CORRECT ANSWER past each other), and gas (remain separated) Liquid compressibility - CORRECT ANSWER Solid (fixed position), liquid (slip Liquids are considered non-compressible Fluid - CORRECT ANSWER Any substance that continually flows under an applied force Pascal's Law - CORRECT ANSWER When a force is exerted on a confined fluid, the resultant pressure is transmitted equally and undiminished in all directions Three types of hydraulic fluids - CORRECT ANSWER synthetic Hydraulic viscosity - CORRECT ANSWER Vegetable-based, petroleum-based, and The resistance of a fluid to flow Disadvantage of synthetic based fluids - CORRECT ANSWER insulation, etc Damaging to wiring, paint, Types of materials used to build hydraulic lines - CORRECT ANSWER steel for rigid tubing, or flexible hose like teflon Purpose of hydraulic reservoir - CORRECT ANSWER Aluminum or stainless To supply fluid to pumps and system components, expansion, air purging, filtration and sediment, and cooling

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AT 202 Exam 2 UPDATED QUESTIONS
AND CORRECT ANSWERS
The hydraulic system on the CRJ700 powers what components? - CORRECT
ANSWER Primary/secondary flight controls, wheel brakes, nose wheel steering, landing gear
extension and retraction, and thrust reversers



Three types of principles of matter - CORRECT ANSWER Solid (fixed position), liquid (slip
past each other), and gas (remain separated)



Liquid compressibility - CORRECT ANSWER Liquids are considered non-compressible



Fluid - CORRECT ANSWER Any substance that continually flows under an applied force



Pascal's Law - CORRECT ANSWER When a force is exerted on a confined fluid, the resultant
pressure is transmitted equally and undiminished in all directions



Three types of hydraulic fluids - CORRECT ANSWER Vegetable-based, petroleum-based, and
synthetic



Hydraulic viscosity - CORRECT ANSWER The resistance of a fluid to flow



Disadvantage of synthetic based fluids - CORRECT ANSWER Damaging to wiring, paint,
insulation, etc



Types of materials used to build hydraulic lines - CORRECT ANSWER Aluminum or stainless
steel for rigid tubing, or flexible hose like teflon



Purpose of hydraulic reservoir - CORRECT ANSWER To supply fluid to pumps and system
components, expansion, air purging, filtration and sediment, and cooling



Why pressurized reservoir - CORRECT ANSWER So aircraft are able to fly at high altitudes
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