Hild Defence And Aerospace Interview Questions and Answers

Monolithic process refers to a manufacturing process where a product is made in a single continuous step.

• Involves creating a product in one continuous process without any breaks or interruptions

• Typically used in industries like semiconductor manufacturing and composite materials production

• Results in a product with uniform properties and characteristics

Clean room parameters refer to the specific conditions maintained in a controlled environment to prevent contamination.

• Clean room parameters include temperature, humidity, air pressure, and air filtration levels.

• Temperature is typically kept between 20-24 degrees Celsius.

• Humidity levels are usually maintained between 30-70%.

• Air pressure is controlled to prevent outside contaminants from entering the clean room.

• Air filt...read more

The best material for tooling development is typically epoxy resin due to its high strength, durability, and dimensional stability.

• Epoxy resin is commonly used for tooling development in composite manufacturing due to its high strength and durability.

• It has excellent dimensional stability, which is crucial for maintaining the shape and accuracy of the tool over time.

• Epoxy resin can also be easily machined and polished ...read more

Composite failure can be identified through visual inspection, non-destructive testing, and mechanical testing.

• Visual inspection: Look for cracks, delamination, or other visible signs of damage on the surface of the composite material.

• Non-destructive testing: Use techniques like ultrasonic testing, thermography, or radiography to detect internal defects without damaging the material.

• Mechanical testing: Conduct tests su...read more

Stacking sequence in composites refers to the specific order in which different layers of materials are stacked together to form a composite structure.

• Stacking sequence determines the orientation of each layer's fibers or reinforcement materials.

• The sequence can greatly impact the mechanical properties of the composite, such as strength, stiffness, and impact resistance.

• Common stacking sequences include unidirectional,...read more