Materials & Processes Flashcards
9 cards from real DMD practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 9 Materials & Processes flashcards as text
Which material property measures a material's ability to resist deformation under load?
Answer: Strength
Strength is a material property that indicates how well a material can withstand an applied force without breaking or deforming.
Which manufacturing process involves removing material to create a desired shape?
Answer: Subtractive manufacturing
Subtractive manufacturing involves cutting, drilling, or milling away material from a larger block to create a final product.
What is the primary advantage of using composite materials in manufacturing?
Answer: They provide high strength with low weight.
Composite materials offer a combination of high strength and low weight, making them ideal for aerospace, automotive, and sports industries.
Which type of additive manufacturing process uses a laser to fuse metal powder into solid parts?
Answer: Selective Laser Melting (SLM)
Selective Laser Melting (SLM) and Direct Metal Laser Sintering (DMLS) use a laser to fuse metal powder layer-by-layer.
Which of the following best defines a thermoplastic material?
Answer: A material that can be melted and reshaped multiple times.
Thermoplastics can be repeatedly melted and reshaped, unlike thermosetting plastics which harden permanently after curing.
Which material test measures a material’s resistance to gradually applied loads?
Answer: Tensile test
Tensile testing determines how materials respond to forces that pull them apart, identifying their strength and elongation properties.
Which of these is considered an advanced manufacturing process?
Answer: 3D printing
3D printing (additive manufacturing) is a modern, highly flexible production technique capable of creating complex geometries directly from digital models.
What is the primary purpose of heat treatment in materials processing?
Answer: To change the material's properties through heating and cooling.
Heat treatment alters a material's physical and sometimes chemical properties to improve characteristics like hardness, strength, and toughness.
Which process is used to permanently join two or more materials by melting them together?
Answer: Welding
Welding involves melting the materials to be joined and typically adding a filler material, forming a strong, permanent bond.