PTL CONOCIMIENTOS GENERALES DE AERONAVES

What is the purpose of the wing main spar. To withstand bending and torsional loads. To withstand compressive and torsional loads. To withstand compressive and shear loads.

What is the purpose of wing ribs. To withstand the fatigue stresses. To shape the wing and support the skin. To house the fuel and landing gear.

The airframe structure must remain substantially intact after experiencing: The design ultimate load times a 1.5 safety factor. The design limit load plus the design ultimate load. The design limit load times a 1.5 factor of safety.

How can wing bending moments be reduced in flight?. By using aileron "up-float" and keeping the centre section fuel tanks full for as long as possible. By using aileron "up-float" and using the fuel in the wings last. By having tail-mounted engines and using aileron "down-float".

The primary purpose of the fuselage is to: Support the wings. House the crew and payload. Keep out adverse weather.

The pressure gauge of an hydraulic system provides information regarding the pressure of: the hydraulic fluid in the system. the air and hydraulic fluid in the system. he proportional pressure in the system.

A shuttle valve: is used to replace NRVs. allows two supply sources to operate one unit. allows one source to operate two units.

A relief valve: relieves below system pressure. maintains pressure to a priority circuit. relieves at its designed pressur.

The primary purpose of a hydraulic reservoir is: to compensate for leaks, displacement and expansion. to allow a space into wich spare fluid may be stored. to indicate system contents.

With air in the hydraulic system you would: ignore it because normal operation would remove it. bleed the air out of the system. allow the accumulator to automatically adjust itself.

Pascal's law states that. presure is inversely proportional to load. liquid is comprenssible. applied force acts equally in all directions.

The purpose of an accumulator is to: relieve excess pressure. store fluid under pressure. store compressed gas for tyre inflation.

The minimum height to which an aircraft may safely continue a precision approach, without visual reference is known as the: desicion height. minimun descent altitud. decision altitud.