Examen Diagnóstico para Nuevos Alumnos 3

✅ A GOOD PAINT FINISH.

A good paint finish is one of the best barriers between metal and corrosion because it helps isolate the metal surface from moisture, oxygen, and contaminants. If the finish is damaged, corrosion can start more easily.

✅ HELICAL WING OR ROTATING WING.

The word helicopter comes from Greek roots meaning helical or rotating wing. This fits the aircraft design because lift is produced mainly by the rotor blades, which act like rotating wings.

✅ ANTES DE RETORNAR LA AERONAVE AL SERVICIO.

Si la instalación de un lastre permanente requiere aprobación, esta debe obtenerse antes de retornar la aeronave al servicio. Esto es necesario porque el lastre modifica el peso y balance, pudiendo afectar el centro de gravedad, la estabilidad y la seguridad operacional.

✅ DAMAGE TO THE FINISHES AND SURFACES.

When using mechanical cleaning materials, it is important to avoid damage to finishes and surfaces. Abrasive pads, brushes, or wool can remove dirt and corrosion, but if used incorrectly they may scratch, wear, or damage protective coatings and aircraft surfaces.

✅ POR LA CRECIENTE CORRELACIÓN ENTRE SEGURIDAD DE LA AVIACIÓN Y PERFORMANCE DE LOS TÉCNICOS.

El párrafo 3.24 señala que, aunque rara vez se exige examen médico regular a los técnicos, debido a la creciente correlación entre la seguridad de la aviación y la performance de los técnicos de mantenimiento, resulta oportuno considerar ese control médico. Esa redacción coincide literalmente con la alternativa A. La D se parece, pero omite la idea clave de “creciente correlación”, por eso es menos exacta.

✅ IS ITS WEIGHT PER UNIT OF VOLUME.

The density of a substance is its weight per unit of volume. In simple terms, it tells how heavy a material is for the space it occupies. A substance with high density has more weight in the same volume than a substance with low density.

✅ AS DETERMINED BY THE OFFICIALLY RECOGNIZED STANDARD.

A DAN 145 CMA must calibrate its testing equipment according to an officially recognized standard. This ensures that the equipment remains accurate, reliable, and traceable to accepted calibration references.

Calibration is essential because incorrect test equipment readings can affect inspections, measurements, maintenance decisions, and the final airworthiness condition of an aircraft or component.

✅ THE BOLTS.

Bolts are among the most commonly used threaded fastening devices on aircraft. They are used where strong, secure attachment is required, usually with nuts, washers, or other locking devices to prevent loosening during vibration.

✅ HORIZONTAL, THIS IS PARALLEL TO THE GROUND.

During hovering flight in a no-wind condition, the tip-path plane is horizontal, meaning it is parallel to the ground.
This allows the rotor thrust to act mainly upward, balancing the helicopter’s weight and keeping it stationary over one point.

✅ TC – STC – AD.

The approved maintenance data automatically convalidated by the DGAC refers to technical approval documents directly related to the product’s airworthiness, such as the Type Certificate (TC), Supplemental Type Certificate (STC), and Airworthiness Directives (AD).

These documents are accepted because they define or modify the approved design and mandatory airworthiness conditions.