Pawan Hans Helicopter Training Institute Basic Aerodynamics Preparation Test 1
Pawan Hans Helicopter Training Institute Basic Aerodynamics Preparation Test 1
Pawan Hans Helicopter Training Institute Basic Aerodynamics Preparation Test 1
BASIC AERODYNAMICS
PREPARATION TEST 1
1. The atmosphere is a region of gasses that surrounds the earth up to a height of approximately
1) 500 miles
2) 400 miles
3) None of the above
2. The coldest region of our Earth’s atmosphere is
1) Stratosphere
2) mesopause
3) troposphere
3. The range of troposphere is
1) MSL to 11km
2) MSL to 7 miles
3) both 1 & 2
4) MSL to 6 km
4. The layer in the atmosphere which separates the troposphere and stratosphere
1) Tropopause
2) Mesopause
3) Stratopause
5. The tropopause exist at an altitutde of
1) 36000 feet
2) 30000 feet
3) 25000 feet
4) 45000 feet
6. The gaseous composition of our Earth’s atmosphere consist of ………………% of oxygen,………………% of
nitrogen & ……………… of other gases respectively
1) 78,21,1
2) 21,78,1
3) 1,78,21
4) 21,1,78
7. Density of air is …………………. proportional to pressure
1) Directly
2) indirectly
3) does not depend
8. Pressure variation with respect to altitude is
1) Uniform
2) non uniform
3) exponential
4) both 2 & 3
9. If the temperature increases at constant pressure then the density will
1) Remain constant
2) decreases
3) increases
4) None of the above
10. The lapse rate value is
1) 1.98 ℃/1000 feet
2) 1.98 ℃/1000 m
PAWAN HANS HELICOPTER TRAINING INSTITUTE
BASIC AERODYNAMICS
PREPARATION TEST 1
3) 6.5K/1000 feet
4) None of the above