Email
info@vayudootaviation.com
Phone No
+91 7276526726
become a pilot
Home
About us
courses
CPL
ATPL
RTR(A)
Airline Cadet Program
IGRUA Entrance Prep
B.Sc. Aviation
Pilot Training
INDIA
USA
CANADA
SOUTH AFRICA
NEW ZEALAND
EUROPE
Aircraft Type-Rating
Airbus A320
Boeing 737
Blogs
contact
CPL Test Series
Question Bank
Questions for ATMOSPHERE 1
Answer the following questions
Test Mode
Training Mode
1. Which is true of the temperature at the tropopause?
There is no significant difference with change of latitude
It is higher in polar regions than in equatorial regions
It is highest in middle latitudes
It is higher in equatorial regions than in Polar Regions
2. The temperature at FL 110 is -5°C. What will the temperature be at FL 50 if the ICAO standard lapse rate is applied?
+7°C
+3°C
-3°C
0°C
3. The temperature at FL 140 is -12°C. What will the temperature be at FL 110 if the ICAO standard lapse rate is applied?
-9°C.
-6°C.
-18°C.
-15°C.
4. The rate of decrease of temperature with height per 100 m in the International Standard Atmosphere is
variable
1°C
0.5°C
0.65°C
5. What, approximately, is the average height of the tropopause over the equator?
40 km
8 km
16 km
11 km
6. What is the approximate composition of the dry air by volume in the troposphere?
10 % oxygen, 89 % nitrogen, and the rest other gasses
50 % oxygen, 40 % nitrogen, and the rest other gasses
21 % oxygen, 78 % nitrogen, and the rest other gasses
88 % oxygen, 9 % nitrogen, and the rest other gasses
7. In the lower part of the stratosphere the temperature
is almost constant
decreases with altitude
increases at first and decreases afterward
increases with altitude
8. If you are flying at FL 120 and the outside temperature is -2°C, at what altitude will the “freezing level” be?
FL 150
FL 130
FL 110
FL 90
9. How would you characterise an air temperature of -15°C at the 700 hPa level over Western Europe?
20°C below standard
Within +/-5°C of ISA
Low
High
10. What of the following is the most important constituent in the atmosphere from a weather stand-point?
Nitrogen
Water vapour
Oxygen
Hydrogen
11. The tropopause is a level at which
vertical currents are strongest
temperature ceases to fall with increasing height
pressure remains constant
water vapour content is greatest
12. The average height of the tropopause at 50°N is about
14 km
8 km
16 km
11 km
13. A temperature of +15°C is recorded at an altitude of 500 metres above sea level. If the vertical temperature gradient is that of a standard atmosphere, what will the temperature be at the summit of a mountain, 2500 metres above sea level?
-2°C
0°C
+2°C
+4°C
14. The temperature at 10,000 FT in the International Standard Atmosphere is
-35°C
-20°C
0°C
-5°C
15. In the mid-latitudes the stratosphere extends on an average from
11 to 50 km
0 to 11 km
50 to 85 km
85 to more than 200 km
16. The thickness of the troposphere varies with
longitude
the wind
rotation of the earth
latitude
17. What is the boundary layer between troposphere and stratosphere called?
Ionosphere
Atmosphere
Tropopause
Stratosphere
18. Which statement is correct regarding the International Standard Atmosphere?
At MSL temperature is 15°C and pressure is 1013.25hPa
At MSL temperature is 10°C and the decrease in temperature with height is 1°C per 100m
At MSL temperature is 15°C and the decrease in temperature with height is 1°C per 100m
At MSL pressure is 1013.25 hPa and the decrease of temperature with height is 1°C per 100m
19. The lowest assumed temperature in the ICAO Standard Atmosphere is
-56.5°C
-44.7°C
-100°C
-273°C
20. If you are flying at FL 300 in an air mass that is 15°C warmer than a standard atmosphere, what is the outside temperature likely to be?
-15°C
-60°C
-30°C
-45°C
21. What is the most likely temperature at the tropical tropopause?
-35°
-75°
-25°
-55°
22. The height and the temperature of the tropopause are respectively in the order of
16 km and -75°C over the equator
16 km and -40°C over the poles
8 km and - 75°C over the poles
8 km and -40°C over the equator
23. The tropopause is lower
south of the equator than north of it
over the North Pole than over the equator
in summer than winter in moderate latitudes
over the equator than over the South Pole
24. What is the vertical temperature lapse rate, up to 11 km, in the ICAO standard atmosphere?
2°C per 1000 m
4.5°C per 1000 m
6.5°C per 1000 m
3°C per 1000 m
25. At a certain position, the temperature on the 300 hPa chart is -48°C; according to the tropopause chart, the tropopause is at FL 330. What is the most likely temperature at FL 350?
-58°C
-56°C
-54°C
-50°C
26. Which layer of the atmosphere contains more than 90% of all water vapour?
Lower stratosphere
Upper stratosphere
Ionosphere
Troposphere
27. The troposphere
reaches the same height at all latitudes
has a greater vertical extent above the equator than above the poles
is the separation layer between the stratosphere and atmosphere
contains all oxygen of the stratosphere
28. The troposphere is the
part of the atmosphere above the stratosphere
boundary between the mesosphere and thermosphere
boundary between the stratosphere and the mesosphere
part of the atmosphere below the tropopause
29. Going from the equator to the North Pole, the altitude of the tropopause
increases and its temperature increases
decreases and its temperature decreases
decreases and its temperature increases
increases and its temperature decreases
30. How would you characterise an air temperature of -30°C at the 300 hPa level over Western Europe?
High
Within +/-5°C of ISA
Very low
Low
31. The temperature at FL 80 is +6°C. What will the temperature be at FL 130 if the ICAO standard lapse rate is applied?
-6°C
0°C
-4°C
+2°C
32. The 0°C isotherm is forecast to be at FL 50. At what FL would you expect a temperature of -6°C?
FL20
FL110
FL80
FL100
33. How does temperature vary with increasing altitude in the ICAO standard atmosphere below the tropopause?
At first it increases and higher up it decreases
Remains constant
Decreases
Increases
34. How does the height of the tropopause normally vary with latitude in the northern hemisphere?
It remains constant throughout the year
It decreases from south to north
It increases from south to north
It remains constant from north to south
35. How would you characterise an air temperature of -55°C at the 200 hPa level over Western Europe?
Very high
Within +/-5°C of ISA
Low
High
36. Which one of the following statements applies to the tropopause?
It is, by definition, an isothermal layer
It separates the troposphere from the stratosphere
It is, by definition, a temperature inversion
It indicates a strong temperature lapse rate
37. An outside air temperature of -35°C is measured while cruising at FL 200. What is the temperature deviation from the ISA at this level?
5°C warmer than ISA
5°C colder than ISA
10°C warmer than ISA
10°C colder than ISA
Submit
Make New Set