Free Practice Quiz Question List

9 Processing and Material Selection Online Quiz Questions

Use this free practice quiz with 20 questions to review 9 Processing and Material Selection, test your knowledge, and prepare for your next test or exam.

20 questions

True or false

1 point

During ceramic sintering, heat bonds particles and reduces porosity, while the part shrinks as it densifies.

A
True
B
False

True or false

1 point

If an additively manufactured material has a specified composition, its properties and quality will be uniform regardless of feedstock or build conditions.

A
True
B
False

Written response

1 point

What is the general name for shaping solid metal by rolling, forging, drawing, or bending?

Written response

1 point

Which two items should be stated before comparing alternatives across their life cycles?

Fill in the blank

1 point

Plastic deformation during metal forming can increase strength through and may create .

Fill in the blank

1 point

Composite performance depends partly on and the quality of the between fiber and matrix.

Choose one

1 point

A lightweight equipment housing must be corrosion-resistant, electrically insulating, and made in large quantities. Which option is the strongest initial candidate based on these requirements?

A
A machined metal housing, because machining makes metal electrically insulating and lightweight
B
A molded thermoplastic housing, because it can provide insulation, complex shapes, and high-volume production
C
A printed polymer prototype, because printing is always the lowest-cost process for mass production
D
A cast metal housing, because casting guarantees electrical insulation and eliminates defects

Choose all

1 point

Which of the following are common methods for shaping thermoplastics? Select all correct choices.

A
Injection molding
B
Ceramic sintering
C
Extrusion
D
Blow molding
E
Metal forging

Choose all

1 point

When comparing the cost of finished-part alternatives, which factors should be included? Select all correct choices.

A
Include tooling and processing costs
B
Compare only the price per kilogram of raw material
C
Account for scrap and inspection
D
Ignore expected repair or replacement because these occur after manufacturing
E
Consider maintenance and expected replacement or repair

Choose one

1 point

Which statement correctly distinguishes machining from additive manufacturing?

A
Machining shapes a part by bonding powder particles; additive manufacturing removes material from stock
B
Machining and additive manufacturing both shape parts only by pouring molten metal into a mold
C
Machining removes material from stock; additive manufacturing builds a part layer by layer
D
Machining and additive manufacturing both shape parts only by deforming solid metal

Choose one

1 point

Why can a material that performs well in a test specimen still fail to deliver the same performance in a manufactured part?

A
A test specimen's properties always transfer unchanged because processing affects shape only
B
Manufacturing can alter microstructure or introduce defects, changing the part's performance
C
A material's composition alone determines all properties of a finished component
D
Processing affects performance only when the material is a composite

Choose one

1 point

A team uses additive manufacturing to make a complex prototype. Which conclusion about post-processing is best supported?

A
It eliminates the need to qualify parts for their intended use
B
It always produces finished parts without supports or surface treatment
C
Its properties are unaffected by layer direction or thermal history
D
It can enable complex geometries, but post-processing may still be needed

True or false

1 point

True or false: After a thermosetting polymer has been chemically cured, it can be melted again in the same way as a thermoplastic.

A
True
B
False

Choose one

1 point

A cast metal component will experience repeated loading. Which processing-related concern should be considered when assessing its fatigue performance?

A
It reliably eliminates internal flaws because molten metal fills every part of the mold uniformly.
B
It can produce complex shapes, but cooling-related defects may reduce fatigue strength or toughness.
C
It increases ductility by aligning polymer chains during solidification.
D
It prevents shrinkage because the metal contracts only before entering the mold.

Written response

1 point

Ceramic powder has been shaped and dried. What is the name of the process in which heating bonds its particles and reduces porosity as the part densifies?

Choose one

1 point

A cold-formed metal part has gained strength but now needs greater ductility for a later forming step. Which treatment can help restore ductility?

A
Casting
B
Machining
C
Annealing
D
Welding

Written response

1 point

A component must be brought to a precise final shape by removing material from stock. Which process does this?

Choose one

1 point

A composite component uses aligned fibers to carry load in one direction. What design implication follows from this reinforcement arrangement?

A
Aligned fibers can provide higher stiffness and strength along their direction than across it.
B
The part will have identical properties in every direction because fibers are part of a matrix.
C
Fiber orientation affects appearance but not mechanical behavior.
D
The part will be weakest along the fiber direction because fibers carry no load.

Choose one

1 point

An additively manufactured part will be used in a safety-critical application. Which approach best addresses the effects of build conditions on its performance?

A
Complex geometry guarantees consistent properties, so inspection is unnecessary.
B
Layer direction affects surface finish only, not part properties.
C
Any feedstock can be used without affecting the final part.
D
Build conditions and layer direction can affect defects and properties, so the part should be qualified for its intended use.

Open ended

1 point

A design team is choosing a material–process combination for a component with a strict maximum service temperature and a target minimum strength. Several remaining options differ in manufacturability and cost. Explain how the team should screen, rank, and verify the options, including why generic property data alone may be insufficient.