Q1. An aircraft is maintaining a 5.2% gradient is at 7 NM from the runway, on a flat terrain;its height is approximately:
2210 FT – Given: Gradient = 5.2%; Distance = 7 NM; 1 NM = 6,080 ft. Step 1: Horizontal distance = 7 NM x 6,080 ft/NM = 42,560 ft. Step 2: Apply gradient Height = 42,560 x (5.2 / 100) = 2,213.12 ft. Approximate height: ≈ 2,210 ft.
Q2. Given: Pressure Altitude 29000 FT, OAT -55°C. Calculate the Density Altitude?
27500 FT – At a pressure altitude of 29,000 ft and an OAT of -55°C, the standard (ISA) temperature would be -43°C. This means the air is 12°C colder than standard. Density Altitude = Pressure Altitude + [120 x (OAT – ISA)] = 29,000 + [120 x (-12)] = 27,560 ft.
Q3. Given: Airport elevation is 1000 ft. QNH is 988 hPa. What is the approximate airport pressure altitude? (Assume 1 hPa = 27 FT)
1680 FT –
Q4. Given: Indicated altitude 9000 FT, OAT -32°C, CAS 200 kt. QNH 1013.What is the TAS?
217 kt is correct answer . so consider 9000 as pressure altitude in CX3.
Q5. Given: Aircraft at FL 150 overhead an airport Elevation of airport 720 FT. QNH is 1003 hPa. OAT at FL150 -5°C.What is the true altitude of the aircraft? (Assume 1 hPa = 27 FT)
15 280 FT –
Q6. An aircraft takes off from the aerodrome of BRIOUDE (altitude 1 483 FT, QFE = 963 hPa, temperature = 32°C).Five minutes later, passing 5 000 FT on QFE, the second altimeter set on 1 013 hPa will indicate approximately:
6 400 FT –
Q7. The QNH of an airport at sea level is 983 hPa and the temperature deviation from ISA is -15°C below FL 100.What is the true altitude of FL 100?
8590 FT – 9190 – (9190 x 15 x 4 / 1000) = 86381 feet
Q8. You are flying at FL 160. Outside air temperature is -27°C and the pressure at sea level is 1003 hPa.What is the true altitude?
15090 feet –
Q9. You are flying at FL 200.Outside air temperature is -40°C, and the pressure at sea level is 1033 hPa.What is the true altitude?
19340 feet –
Q10. You are flying at FL 100 in an airmass which is 15°C colder than ISA, local QNH 983.True altitude?
8590 ft –
Q11. Your altimeter is blocked at 1000 hPa. You have to overfly a mountain (8000 ft) with a terrain clearance of at least 1500 ft.What will be your indicated altitude when the QNH of a nearby airport is 990 hPa and the temperature is 10C colder than ISA?
10150 ft –
Q12. You intend to overfly a mountain ridge at an altitude of 15000 ft AMSL. The average air temperature is 15°C lower than ISA, the sea level pressure 1003 hPa.Which altimeter indication (standard setting) is needed?
16170 ft –
Q13. You intend to overfly a mountain ridge. The recommended minimum altitude for overflight according to your ICAO chart is 12000 ft AMSL.The average air temperature is 10°C higher than ISA, your altimeter is set to the local QNH of 1023 hPa.Which altimeter indication is needed to maintain the recommended minimum altitude?
11520 ft –
Q14. You have landed at an airport, local QNH 993 hPa. After landing, you notice, that your altimeter subscale is still set to 1013,2 hPa. Your altimeter indicates 1200 ft.What is the airport elevation?
660 ft AMSL –
Q15. You are cruising at FL 160 at an OAT of -27°C. The sea level pressure is 1003 hPa. Your true altitude therefore is…
15090 ft –
Q16. The following temperatures have been observed over a station at 1200 UTC. Assume the station is at MSL.Height in feet. Temperature in degrees C. (20000 -12) (18000 -11) (16000 -10) (14000 -10) (12000 -6) (10000 -2) (8000 +2) (6000 +6) (4000 +12) (2000 +15) (surface +15).
Assuming that the MSL pressure is 1013.25 hPa the true altitude of an aircraft would actually be higher than the indicated altitude.
Q17. You intend to overfly a mountain range. The recommended minimum flight altitude is, according to the aviation chart, 15000 FT/AMSL. The air mass that you will fly through is on average 15°C warmer than the standard atmosphere.The altimeter is set to QNH (1023 hPa). At what altimeter reading will you effectively be at the recommended minimum flight altitude?
14100 FT –
Q18. The QNH of an airport at sea level is 983 hPa and the temperature deviation from ISA is -15°C below FL 100.What is the true altitude of FL 100?
8590 FT – 8638 feet answer
Q19. You plan a flight over a mountain range at a true altitude of 15000 FT/AMSL. The air is on an average 15°C colder than ISA, the pressure at sea level is 1003 hPa.What indication must the altimeter (setting 1013.2 hPa) read?
16170 FT –