Free DMD Materials & Processes Questions and Answers

Question 1

Which material property measures a material's ability to resist deformation under load?

Accepted Answer

Strength

Answer

Ductility

Answer

Transparency

Answer

Conductivity

Question 2

Which manufacturing process involves removing material to create a desired shape?

Accepted Answer

Subtractive manufacturing

Answer

Injection molding

Answer

Additive manufacturing

Answer

Casting

Question 3

What is the primary advantage of using composite materials in manufacturing?

Accepted Answer

They provide high strength with low weight.

Answer

They are transparent.

Answer

They reduce product cost.

Answer

They dissolve in water.

Question 4

Which type of additive manufacturing process uses a laser to fuse metal powder into solid parts?

Accepted Answer

Selective Laser Melting (SLM)

Answer

Fused Deposition Modeling (FDM)

Answer

Injection molding

Answer

CNC milling

Question 5

Which of the following best defines a thermoplastic material?

Accepted Answer

A material that can be melted and reshaped multiple times.

Answer

A material that hardens once and cannot be reshaped.

Answer

A material that decomposes at high temperatures.

Answer

A material that conducts electricity.

Question 6

Which material test measures a material’s resistance to gradually applied loads?

Accepted Answer

Tensile test

Answer

Hardness test

Answer

Thermal conductivity test

Answer

Transparency test

Question 7

Which of these is considered an advanced manufacturing process?

Accepted Answer

3D printing

Answer

Die casting

Answer

Sand casting

Answer

Forging

Question 8

What is the primary purpose of heat treatment in materials processing?

Accepted Answer

To change the material's properties through heating and cooling.

Answer

To paint the material

Answer

To clean the material

Answer

To weigh the material

Question 9

Which process is used to permanently join two or more materials by melting them together?

Accepted Answer

Welding

Answer

Gluing

Answer

Bolting

Answer

Clamping