Question 1 is a measure of

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 AB

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 gt PSeaLevel
• B Pamb PSeaLevel
• C P2amb / PSeaLevel
• D PambPSeaLevel

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. -Temperatur
e RatioTambient / Tsea level ?
1-(6.875310-6)Altitude -Pressure RatioPambient
/ Psea level d (1-6.8810-6Altitude)5.26
The Base Standards(ISA)
Parameter Value Units
Pressure 2,116.22 lbs/ft2
Density 0.002377 Slugs/ft3
Temperature 59ºF15ºC288.16ºK518.688ºR Fahrenheit, Celsius, Kelvin, Rankine
Gravity 32.1741 ft/sec2
Gas Constant 53.35 ft/ºR
7
Question 6 Standard Ambient Temperature (ºC) on
the altitude 25,000ft. Tip Degrees CDegrees
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 (?) 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 C273.15) (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