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An aircraft flying below the tropopause descends at a constant True Airspeed. Its Mach. No. will
- not change.
- increase.
- decrease.
True airspeed/speed of sound = mach number. So if descending below tropopause doesn’t it mean that Mach number will increase at constant aircraft airspeed? Since the temperature will rise?
Or I am getting it wrong?
As altitude increases, pressure
- decreases exponentially.
- reduces at a constant rate.
- rises exponentially.
Isn't:-1hPa in 27ft. So why it decreases exponentially?
The working fluid of a gas turbine engine is
- gasoline.
- kerosene.
- air.
Can anyone help me with this question?
1kg of water is heated from 0 degrees C to 2 degrees C. Its volume will
- decrease.
- increase.
- stabilize.
Nevermind, i found out that heating water until 4 celsius decreases it's volume and after that it starts to increase
1kg of water is heated from 0 degrees C to 2 degrees C. Its volume will
- decrease.
- increase.
- stabilize.
Shouldn't volume increase with the increase of temperature? Maybe someone has an explanation or is this question wrong.