GK
PHYSICS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Inside an aeroplane, flying at a high altitude,
|
|
the pressure is the same as that outside
|
|
|
normal humidity and partial vacuum are maintained
|
|
|
the pressure inside is less than the pressure outside
|
|
|
normal atmospheric pressure is maintained by the use of air pumps
|
Explanation:
Detailed explanation-1: -The air pressure in an aircraft (cabin pressure) is kept higher than the atmospheric pressure at high altitudes to avoid discomfort to passengers due to low outside air pressure. This pressure is called cabin pressurization. Hence the normal atmospheric pressure is maintained by the use of air pumps.
Detailed explanation-2: -Atmospheric pressure decreases as the height of a surface above ground level increases. This is because, as the altitude increases: the number of air molecules decreases. the weight of the air decreases.
Detailed explanation-3: -Hence, An aeroplane flying high in the sky possesses : potential and kinetic energy.
There is 1 question to complete.