Questions on Air Density

Density is at poles than equator

• Higher

• Lower

• Same

Above 8 km density is at poles than at equator

• Higher

• Lower

• Same

The altitude in ISA at which air density is the same as the observed density is

• Density Altitude

• ISA Density

• Real Density

Density is usually expressed as

• Kg/sq m

• g/cu m

• N/sq m

Higher density altitude means density

• Higher

• Lower

• Same

For given pressure and temperature moist air has density

• Higher

• Lower

• Same

Air is less denser in

• High Altitudes

• Warm Air

• High Humidity

• All these

Density altitude may be defined as:

• The altitude in ISA at which the prevailing pressure occurs.

• The altitude in ISA at which the prevailing density occurs.

• The altitude in actual atmosphere at which the prevailing density occurs.

Temperature being constant, if pressure increases the density altitude

• increases

• lowers

• remains the same

For every1°C change in temperature, density altitude differs from pressure altitude by

• 33 ft

• 100 ft

• 120 ft

• 210 ft