Aerodynamics EASA

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The ISA

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At higher altitudes as altitude increases, pressure

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When the pressure is half of that at sea level, what is the altitude?.

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If gauge pressure on a standard day at sea level is 25 PSI, the absolute pressure is.

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Pressure decreases.

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As air gets colder, the service ceiling of an aircraft.

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What is sea level pressure?.

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How does IAS at the point of stall vary with height?.

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What is the lapse rate with regard to temperature?

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Standard sea level temperature is.

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As altitude increases, pressure.

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Lapse rate usually refers to.

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Temperature above 36,000 feet will.

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With increasing altitude pressure decreases and.

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What is the temperature in comparison to ISA conditions at 30,000ft?.

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At what altitude is the tropopause?.

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What approximate percentage of oxygen is in the atmosphere?.

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Which has the greater density?.

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At what altitude does stratosphere commence approximately?.

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A pressure of one atmosphere is equal to.

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The millibar is a unit of.

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With an increase in altitude under I.S.A. conditions the temperature in the troposphere.

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A barometer indicates.

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The amount of water vapour capacity in the air (humidity holding capacity of the air) is.

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Which condition is the actual amount of water vapour in a mixture of air and water?.

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Which will weigh the least?.

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Which is the ratio of the water vapour actually present in the atmosphere to the amount that would be present if the air were saturated at the prevailing temperature and pressure?.

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The speed of sound in the atmosphere

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What is sea level pressure?.

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Which statement concerning heat and/or temperature is true?.

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What is absolute humidity?.

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The temperature to which humid air must be cooled at constantpressuretobecome saturated is called.

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Density changes with altitude at a rate.

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Above 65,800 ft temperature.

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At sea level, ISA atmospheric pressure is.

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On a very hot day with ambient temperature higher than ISA, the pressure altitude is 20,000 ft. How much will the density altitude be?.

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The atmospheric zone where the temperature remains fairly constant is called the.

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In the ISA the height of the tropopause is

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In the ISA the sea level pressure is taken to be.

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In the ISA the temperature lapse rate with altitude is taken to be :

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Put in sequence from the ground up

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The International Standard Atmosphere can be described as.

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The temperature lapse rate below the tropopause is.

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Above the tropopause air pressure

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Which of the following is correct?.

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As the altitude increases what happens of the ratio of Nitrogen to Oxygen?.

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What happens to the density of air as altitude is increased?.

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An aircraft is travelling at a speed of 720 nautical miles per hour. To calculate speed in MPH you.

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Lift on a delta wing aircraft

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The CofP is the point where.

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When an aircraft experiences induced drag.

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At stall, the wingtip stagnation point.

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The rigging angle of incidence of an elevator is.

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Which of the following is true?.

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The vertical fin of a single engined aircraft is.

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What happens to air flowing at the speed of sound
when it enters a converging duct?.

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As the angle of attack of an airfoil increases the centre of pressure.

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Vapour trails from the wingtips of an aircraft in flight are caused by.

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The chord line of a wing is a line that runs from.

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The angle of incidence of a wing is an angle formed by lines.

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The centre of pressure of an aerofoil is located.

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Compressibility effect is.

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A high aspect ratio wing will give.

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Aerofoil efficiency is defined by.

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The relationship between induced drag and airspeed is, induced drag is.

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What is the definition of Angle of Incidence?.

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What is Boundary Layer?.

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What is the collective term for the fin and rudder
and other surfaces aft of the centre of gravity that
helps directional stability?

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A decrease in incidence toward the wing tip may be
provided to

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For a given aerofoil production lift, whereP = pressure and V = velocity.

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Low wing loading

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As a general rule, if the aerodynamic angle of incidence (angle of attack) of an aerofoil is slightly increased, the centre of pressure will.

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The 'wing setting angle' is commonly known as.

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When does the angle of incidence change?.

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As the angle of attack decreases, what happens to the centre of pressure?.

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A decrease in pressure over the upper surface of a wing or aerofoil is responsible for.

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Which of the following types of drag increases as the aircraft gains altitude?.

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The layer of air over the surface of an aerofoil which is slower moving, in relation to the rest of the airflow, is known as.

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What is a controlling factor of turbulence and skin friction?.

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If the C of G is aft of the Centre of Pressure.

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The upper part of the wing in comparison to the lower.

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What effect would a forward CG have on an aircraft on landing?.

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QNH refers to

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QNE refers to

Quiz am Aerodynamics EASA , erstellt von Ahidul Hoque am 11/02/2016.

Aerodynamics EASA

The ISA

At higher altitudes as altitude increases, pressure

When the pressure is half of that at sea level, what is the altitude?.

If gauge pressure on a standard day at sea level is 25 PSI, the absolute pressure is.

Pressure decreases.

As air gets colder, the service ceiling of an aircraft.

What is sea level pressure?.

How does IAS at the point of stall vary with height?.

What is the lapse rate with regard to temperature?

Standard sea level temperature is.

As altitude increases, pressure.

Lapse rate usually refers to.

Temperature above 36,000 feet will.

With increasing altitude pressure decreases and.

What is the temperature in comparison to ISA conditions at 30,000ft?.

At what altitude is the tropopause?.

What approximate percentage of oxygen is in the atmosphere?.

Which has the greater density?.

At what altitude does stratosphere commence approximately?.

A pressure of one atmosphere is equal to.