Frictional drag Study guides, Revision notes & Summaries
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SIFT Test Army Aviation Information verified to pass 2023
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SIFT Test Army Aviation InformationHelicopter structure - correct answer fuselage (body of aircraft), mast, rotor blades 
 
engine drives power up through mast to rotor blades 
 
main rotor generates thrust, tail rotor counteracts torque 
 
main rotor rotates counterclockwise (US, UK, Ger.) 
 
advantages of rotorcraft - correct answer rotor blades (produce lift w/o requiring helicopter to move forward) provide the ability to takeoff vertically, hover in one place, and take off/land in places tha...
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SIFT (Army Aviation)question n answers graded A+ 2023
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SIFT (Army Aviation)Profile drag - correct answer Caused by the blades frictional resistance 
 
Induced drag - correct answer Downwash 
 
Parasite drag - correct answer Components attached to a helicopter that dont contribute to lift 
 
Total drag - correct answer Sum of profile, induced, and parasite drag. 
 
Bernoullis principle - correct answer As flow increases, pressure decreases 
 
Phases of flight - correct answer Takeoff, climb, cruise, descent, landing. 
 
Flat and curved side pressure ...
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SIFT - Army Aviation Written Exam 2024.
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SIFT - Army Aviation Written Exam 2024. 
Types of drag - correct answer Parasitic 
Profile 
Induced 
 
Parasitic drag - correct answer caused by the non-lifting portions of the helicopter (fuselage, engine, cowlings, hub, mast, landing gear, external loads) 
 
increases with airspeed, dominant type of drag at high airspeeds 
 
Profile drag - correct answer caused by frictional resistance of the lift-producing surfaces (rotor blades) passing through the air 
 
remains constant throughout speeds 
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MTTC Integrated Science - Earth & Space Sciences correct 100%
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MTTC Integrated Science - Earth & SpacTheory of Plate Tectonics - ANSWER A theory stating that Earth's lithosphere is broken into huge plates that move and change in size over time 
- explains the process of continental drift 
- theory is a fusion on the theories of continental drift and seafloor spreading 
- continents are not floating on the ocean, rather they are rooted 
 
What are the 10 major plates of the Earth's lithosphere? - ANSWER African, Antarctic, Australian, Eurasian, North Ameri...
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MTTC Integrated Science - Earth & Space Sciences Correct
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Theory of Plate Tectonics - ANSWER A theory stating that Earth's lithosphere is broken into huge plates that move and change in size over time 
- explains the process of continental drift 
- theory is a fusion on the theories of continental drift and seafloor spreading 
- continents are not floating on the ocean, rather they are rooted 
 
What are the 10 major plates of the Earth's lithosphere? - ANSWER African, Antarctic, Australian, Eurasian, North American, South American, Pacific, Cocos, N...
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MTTC Integrated Science - Earth & Space Sciences Correct 100%
- Exam (elaborations) • 15 pages • 2024
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Theory of Plate Tectonics - ANSWER A theory stating that Earth's lithosphere is broken into huge plates that move and change in size over time 
- explains the process of continental drift 
- theory is a fusion on the theories of continental drift and seafloor spreading 
- continents are not floating on the ocean, rather they are rooted 
 
What are the 10 major plates of the Earth's lithosphere? - ANSWER African, Antarctic, Australian, Eurasian, North American, South American, Pacific, Cocos, N...
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SIFT - Army Aviation question and answers graded A+ 2023
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SIFT - Army AviationThree types of Rotor Systems - correct answer 1. Semirigid - composed of two blades that are rigidly mounted to the main rotor hub 
2. Rigid - the blade roots are rigidly attached to the rotor hub 
3. Fully articulated - allow each blade to lead/lag (move back and forth in plane), flap (move up and down about an invoiard mounted hinge), independent of the otherblades, and feather (rotate about the pitch axis to change lift) 
 
3 Types of Approach - correct answer Normal: 7-12...
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Mttc Integrated Science (Earth And Space Sciences) Elaborated Questions And Answers
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Mttc Integrated Science (Earth And 
Space Sciences) Elaborated Questions 
And Answers 
Theory of Plate Tectonics - CORRECT ANSWER-A theory stating that Earth's 
lithosphere is broken into huge plates that move and change in size over time 
- explains the process of continental drift 
- theory is a fusion on the theories of continental drift and seafloor spreading 
- continents are not floating on the ocean, rather they are rooted 
What are the 10 major plates of the Earth's lithosphere? - C...
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AQA GCSE COMBINED PHYSICS TEST QUESTIONS WITH 100% CORRECT ANSWERS
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Absorption 
When a wave transfers energy to the energy stores of a material. 
 
 
 
Acceleration 
A measure of how quickly velocity is changing. 
 
 
 
Accurate result 
A result that is very close to the true answer. 
 
 
 
Activity (radioactive) 
The number of nuclei of a sample that decay per second. 
 
 
 
Air resistance 
The frictional force caused by air on a moving object. 
 
 
 
Alpha decay 
A type of radioactive decay in which an alpha particle is given out from a decaying nucleus. 
 
 
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Mttc Integrated Science Secondary (Earth And Space Sciences) Elaborated Questions And Answers
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Mttc Integrated Science Secondary 
(Earth And Space Sciences) Elaborated 
Questions And Answers 
Theory of Plate Tectonics - CORRECT ANSWER-A theory stating that Earth's 
lithosphere is broken into huge plates that move and change in size over time 
- explains the process of continental drift 
- theory is a fusion on the theories of continental drift and seafloor spreading 
- continents are not floating on the ocean, rather they are rooted 
What are the 10 major plates of the Earth's lithos...
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