M08

What is the specific humidity?. it is the percentage ratio of the amount of steam contained in an air mass to the maximum amount that the same mass can contain at same temperature and pressure. it is the amount of vapour, expressed in grams, contained in a kilogram of air. it is the amount of vapour, expressed in grams, contained in a cubic meter of air.

What is the absolute humidity?. it is the amount of vapour, expressed in grams, contained in a kilogram of air. it is the percentage ratio of the amount of steam contained in an air mass to the maximum amount that the same mass can contain at same temperature and pressure. it is the amount of vapour, expressed in grams, contained in a cubic meter of air.

In the atmosphere the gas most present is. Oxygen. Argon. Nitrogen.

Which is the criterium to make the lift redistribution on a wing?. to ensure that the wing tip is the last part of the wing surface to stall. to reduce profile drag at the wing root. to optimize the position of aircraft centre of gravity.

Where induced drag is stronger?. On the wing root. On the wingtip. On the tailplane.

Why the negative swept-wing is not very used?. For aerodynamic reasons. It has low performance. For structural reasons.

What is the stagnation point of an airfoil?. it is the point where the pressure reaches a minimum. it is the point where the airflow is brought completely to rest. it is the point where the boundary layer changes from laminar to turbulent.

What is the point of stagnation?. The point with lower speed. The point with lower pressure. The point with lower temperature.

How is the induced drag?. it is greatest towards the wing tip. it is greatest towards the wing root. it is greatest at the mean aerodynamic chord location.

Where the Delta wing has the best performance?. Hypersonic speed. Supersonic speed. Sonic speed.

What is the NACA code?. It is a series of digits to identify airfoils. It is a series of digits to identify wing shapes. It is a series of digits to identify wing performances.

The drag is. Parallel to the relative wind. Parallel to the chord. None of the other answers.

The stagnation point. Has a constant position around the body. Moves along the body. Depends on the temperature.

Very low aspect ratio are typical of. Gliders. Fighters. General aviation aircraft.

When does a propeller aircraft reach the maximum range condition?. at the minimum wing lift. at the Va. at the maximum efficiency.

When does a jet aircraft reach the maximum range condition?. at high lift. at high altitude. at high density.

What is the flight envelope?. A W-n diagram of all allowed flight conditions. A V-p diagram of all allowed flight conditions. A V-n diagram of all allowed flight conditions.

Which parameter must be maximum to have maximum range on a propeller aircraft?. E. E*root(Cl). E/root(Cl).

During the take-off run, is the wheel friction proportional to which formula?. the ratio between lift and weight. the sum between lift and drag. the difference between weight and lift.

Which parameter must be maximum to have maximum endurance on a propeller aircraft?. E*root(Cl). E. E/root(Cl).

The pitch is a movement around the. Vertical axes. Longitudinal axes. Lateral axes.

The roll is a movement around the. Lateral axes. Vertical axes. Longitudinal axes.

During a banked turn, how is balanced the inertia force?. Thanks to the lift. Thanks to the drag. Thanks to the thrust.

What is the longitudinal stability?. Around the transversal axes. Around the vertical axes. Around the longitudinal axis.