Aircraft Technology Post-Assessment Review

Increasing humidity

• Raises air density

• Lowers air density

• Eliminates air density

• Does not change air density

Forces are vectors because they have

• weight and magnitude

• direction and magnitude

• weight and direction

• mass and volume

Which best defines viscosity?

• The resistance an object experiences as it moves through a fluid.

• The ability of any fluid to change shape.

• The velocity at which air moves over a surface.

• The resistance of a fluid to a change in shape or a change in its motion.

Relative to a changing angle of attack, which of the following is true?

• A decrease in angle of attack will increase the pressure below the wing and increase drag.

• An increase in angle of attack will decrease the pressure above the wing and increase lift.

• An increase in angle of attack will increase the pressure above the wing and increase drag.

• A decrease in angle of attack will increase lift.

Which UAS material is inexpensive, cost-effective to replace, very rigid, yet difficult to repair?

• Composite

• Plastic

• Metal

• Foam

With respect to the certification of aircraft, which are categories of aircraft?

• Normal, utility, acrobatic

• Airplane, rotorcraft, glider

• Landplane, seaplane

• Single-engine, twin-engine, multi-engine

The tendency of a jet of fluid (such as air) to attach to a convex surface is known as____.

• air friction

• parasite drag

• the Coanda Effect

• negative stability

The coefficient of lift is determined by the ____.

• angle of attack only

• speed and the angle of attack

• lift and thrust forces

• airfoil shape and the angle of attack

Which of the following certificates is required only if a pilot wants to fly for a major airline?

• Sport Pilot Certificate

• Private Pilot Certificate

• Instrument Rating

• Airline Transport Pilot Certificate

On a "standard day", air pressure at sea level is 29.92 Hg with a temperature of 15 ^oC. These conditions define ____.

• the Celsius scale

• relative humidity

• the International Standard Atmosphere

• the Magnus Effect