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Aircraft Altitude and Temperature Metrics in Aviation

Learn about altitude measures and temperature metrics in aviation, including geometric altitude, pressure altitude, and ambient temperature calculation standards. Test your knowledge with questions and calculations in the International Standard Atmosphere (ISA).

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Aircraft Altitude and Temperature Metrics in Aviation

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  1. Question 1 is a measure of altitude computed by sensing the Static Pressure. A Geometric Altitude B Pressure Altitude C Geopotential Altitude D Density Altitude

  2. Question 2 is the measure of the temperature at the surface of the aircraft. A Ambient Temperature B Standard Temperature C Static Temperature D A&B

  3. Question 3 Geometric Altitude is the physical distance Of the aircraft from sea level. This measurement is dependent of the pressure effects. A True B False

  4. Question 4 The pressure ratio() is 1 when A Pamb > PSeaLevel B Pamb = PSeaLevel C P2amb / PSeaLevel D Pamb=PSeaLevel

  5. Question 5 The Barometric Pressure at a hypothetical reference point known as 'mean sea level' that has an ambient temperature of 15 F and is an ambient pressure of 29.92 inHg. A True B False

  6. Direction(Question 6-10) In the base standards (ISA) condition, calculate followings. -Temperature Ratio=Tambient / Tsea level = θ = 1-(6.8753*10-6)*Altitude -Pressure Ratio=Pambient / Psea level = δ = (1-6.88*10-6*Altitude)5.26 The Base Standards(ISA)

  7. Question 6 Standard Ambient Temperature(ºC) on the altitude 25,000ft. [Tip: Degrees C=Degrees R*(5/9)-273.15] • A. 15.0 ºC • C. -34.5 ºC B. -15.6 ºC D. -60.0 ºC Question 7 Standard Ambient Pressure(lbs/ft2) on the altitude 25,000ft. • A. 2,116.22 • C. 472.68 B. 2,193.93 D. 784.15

  8. Question 8 Temperature ratio(θ) on 18,000ft height. • A. 1.132 • C. 0.765 B. 0.876 D. 0.674 Question 9 When the ambient temperature is -24 ºC, what is the altitude? [Tip: Degrees R=(Degrees C+273.15) *(9/5)] • A. 19,690 ft • C. 23,500 ft B. 17,470 ft D. 25,420 ft

  9. Question 10 When the ambient pressure is 1,500 lbs/ft2, what is the altitude? • A. 8,477 • C. 10,074 B. 9,206 D. 13,900

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