Test on Aviation Maintenance Technician Handbook
Aviation Maintenance Technician Handbook: Nonmetallic Materials Guide
Test: Plastics, Composite materials, PPE, Rubber, Seals and packing types, O-ring design and use
20 questions
Question 1: The resins used to impregnate glass fabrics in reinforced plastics typically require significant pressure during the curing process.
A. Ano
B. Ne
Explanation: The study materials state that 'Las resinas utilizadas para impregnar las telas de vidrio son del tipo de presión de contacto (que requieren poca o ninguna presión durante el curado).' This translates to 'The resins used to impregnate glass fabrics are of the contact pressure type (requiring little or no pressure during curing).', indicating that significant pressure is not required.
Question 2: Which of the following statements accurately describes laminated structures with a core, also known as sandwich structures, according to the provided study materials?
A. Sandwich laminates offer the same strength as solid laminates but with significantly reduced weight, making them crucial for aerospace applications.
B. The core of a laminated structure can only be made from honeycomb materials like Nomex® or carbon fiber.
C. Sandwich structures are inherently heavier than solid laminated constructions due to the added core material.
D. The material for the core in a laminated structure is typically chosen based on its aesthetic appeal rather than its strength or intended use.
Explanation: The study materials state: 'Laminated construction is strong and rigid, but heavy. Sandwich laminate has the same strength and its weight is much less; lower weight is very important for aerospace products.' This confirms that sandwich laminates provide similar strength at a much lower weight, which is critical for aerospace. The materials also state that cores can be made of 'almost anything' including rigid foam, wood, metal, or honeycomb, and that the decision is based on 'use, strength, and manufacturing methods', not just aesthetic appeal.
Question 3: Is any standard dust mask considered sufficient for protecting against fiberglass particles?
A. Ano
B. Ne
Explanation: The study materials state that as a minimum, a dust mask specifically approved for fiberglass is a necessity for protection against fiberglass particles, not just any standard dust mask.
Question 4: Based on the provided study materials, what type of eye protection is required when working with resins or solvents, and why?
A. Goggles with ventilation holes to prevent fogging.
B. Sealed goggles without ventilation holes, because chemical eye damage is often irreversible.
C. Any type of safety glasses, as long as they cover the eyes.
D. Standard safety glasses to protect against general splashes.
Explanation: The study materials state that eyes must be protected with sealed goggles (without ventilation holes) when working with resins or solvents because chemical damage to the eyes is usually irreversible.
Question 5: Thiokol rubber is recommended for use in tank linings for aromatic aviation gasoline.
A. Ano
B. Ne
Explanation: The study materials state that 'El Thiokol se utiliza para mangueras de aceite, revestimientos de tanques para gasolina de aviación aromática, empaquetaduras y sellos.' This translates to 'Thiokol is used for oil hoses, tank linings for aromatic aviation gasoline, gaskets, and seals.'