Density: DGCA Aviation Meteorology questions

Question 1

Consider the following statements relative to air density and select the one which is correct:

Accepted Answer

At any given surface temperature the air density will be greater in anticyclonic conditions than it will be when the MSL pressure is lower

Answer

Because air density increases with decrease of temperature, air density must increase with increase of height in the International Standard Atmosphere (ISA)

Answer

Air density increases with increase of relative humidity

Answer

The effect of change of temperature on the air density is much greater than the effect of change of atmospheric pressure

Question 2

The tropopause in mid latitudes is:

Accepted Answer

lower in winter with a higher temperature

Answer

lower in summer with a lower temperature

Answer

lower in summer with a higher temperature

Answer

lower in winter with a lower temperature

Question 3

Generally as altitude increases:

Accepted Answer

temperature, pressure and density decreases

Answer

temperature decreases and density increases

Answer

temperature and pressure increase and density decreases

Answer

temperature decreases and pressure density increases

Question 4

In the troposphere:

Accepted Answer

over cold air, the pressure is lower at upper levels than at similar levels over warm air

Answer

over cold air, the pressure is higher at upper levels than at similar levels over warm air

Answer

over warm air, the pressure is lower at upper levels than at similar levels over warm air

Answer

the upper level pressure depends solely on the relative humidity below

Question 5

Density at the surface will be low when:

Accepted Answer

pressure is low and temperature is high

Answer

pressure is high and temperature is high

Answer

pressure is high and temperature is low

Answer

pressure is low and temperature is low

Density: DGCA Aviation Meteorology questions

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