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Free Practice Quiz Question List

10 Materials Selection and Design Online Quiz Questions

Use this free practice quiz with 20 questions to review 10 Materials Selection and Design, test your knowledge, and prepare for your next test or exam.

20 questions
01
True or false
1 point

True or false: In a weighted decision matrix, a candidate’s high total score can justify choosing it even if it fails a mandatory safety constraint.

  1. A

    True

  2. B

    False

02
Fill in the blank
1 point

The planned number of units to manufacture is the production to consider during material selection.

03
Choose one
1 point

A component faces high temperatures and abrasive wear. Which material family is a promising candidate to investigate, while recognizing that brittleness and joining may be concerns?

  1. A

    A polymer, because polymers are generally the best choice for high-temperature wear

  2. B

    A ceramic, provided its brittleness and joining requirements are acceptable

  3. C

    A metal, because all metals have greater wear resistance than ceramics

  4. D

    A composite, because composites are always isotropic and easy to repair

04
Written response
1 point

A component experiences many repeated loading cycles. Which failure-related property should be assessed for this loading condition?

05
Choose all
1 point

A design team must compare several feasible materials against multiple objectives that cannot be combined reliably into one performance index. Which practices make a decision-matrix comparison more transparent? Select all that apply.

  1. A

    Assign justified weights to the criteria

  2. B

    Use different evidence standards for each candidate

  3. C

    Score candidates using consistent evidence

  4. D

    Let the highest score automatically override every mandatory requirement

06
True or false
1 point

True or false: If a property value is published for a material family, it can be used without checking the specific grade, processing route, orientation, temperature, or loading condition.

  1. A

    True

  2. B

    False

07
Fill in the blank
1 point

Phase diagrams help predict which can form at particular temperatures and compositions.

08
Choose one
1 point

A support must carry a specified load, fit within fixed dimensions, and withstand outdoor exposure. The team would like to minimize its mass. Which classification correctly identifies the function, constraints, and objective?

  1. A

    Carrying the load is the objective; low mass is the constraint

  2. B

    Outdoor durability is the function; carrying the load is the objective

  3. C

    Carrying the load is the function, dimensions and outdoor durability are constraints, and minimizing mass is the objective

  4. D

    Low mass is the function, and carrying the load is the only constraint

09
Choose all
1 point

A team is comparing feasible materials for a product intended to be manufactured, serviced, and eventually retired. Which considerations can be part of a whole-design and life-cycle assessment? Select all that apply.

  1. A

    Joining and manufacturing needs

  2. B

    Maintenance and repair

  3. C

    Only the material’s initial purchase price

  4. D

    Recyclability

10
Written response
1 point

In the common materials-selection sequence, what is the stage called in which the design needs are first expressed as a function, constraints, objectives, and service conditions?

11
Choose one
1 point

A team is considering a fiber-reinforced polymer for a lightweight component. Which statement best describes an important design consideration for this material family?

  1. A

    Composite properties are always identical in every direction, so orientation can be ignored

  2. B

    Composites require no special consideration of fabrication or inspection

  3. C

    Composite properties may depend on direction, and fabrication, inspection, repair, and joining need consideration

  4. D

    Composites are unsuitable for tailoring performance

12
Open ended
1 point

A lightweight bracket must carry a specified load, fit a fixed envelope, survive outdoor exposure, and be made in moderate quantities. Describe a defensible materials-selection process for this bracket. Explain what should be treated as constraints versus comparison objectives, how unsuitable candidates should be screened out, and what information should be checked before making a final choice. You may discuss aluminum alloy, steel, or fiber-reinforced polymer as candidate families, but do not assume one is universally best.

13
Choose one
1 point

A component must weigh no more than 4 kg, and the design team wants to minimize its cost. How should these two requirements be classified?

  1. A

    Both maximum mass and minimum cost are objectives to improve.

  2. B

    Maximum mass is a constraint; minimizing cost is an objective.

  3. C

    Maximum mass is an objective; minimizing cost is a constraint.

  4. D

    Both maximum mass and minimum cost are constraints.

14
True or false
1 point

True or false: When selecting a ceramic for a high-temperature component, its resistance to brittle fracture and its joining requirements should still be checked.

  1. A

    True

  2. B

    False

15
Written response
1 point

What kind of diagram helps predict which phases can form at particular temperatures and compositions?

16
Choose one
1 point

A lightweight polymer component will be exposed to elevated temperature for long periods and may contact chemicals. What is the most appropriate selection step?

  1. A

    Assume the polymer will be suitable because polymers are generally lightweight.

  2. B

    Select the polymer with the lowest initial material cost without checking exposure conditions.

  3. C

    Check the specific polymer grade under the intended temperature, duration, and chemical exposure.

  4. D

    Reject all polymers because they cannot be shaped into components.

17
Written response
1 point

What term describes a material's internal features, including grain size, phases, defects, and orientation?

18
Choose one
1 point

A tensile tie must carry a specified load while minimizing mass. Which performance index is identified as useful for comparing candidates, provided all constraints are met?

  1. A

    σfρ\frac{\sigma_f}{\rho}

  2. B

    ρσf\frac{\rho}{\sigma_f}

  3. C

    σfρ\sigma_f \rho

  4. D

    1σfρ\frac{1}{\sigma_f \rho}

19
Choose one
1 point

Several feasible materials must be compared across objectives that cannot be reliably combined into one performance index. Which approach best supports a transparent comparison?

  1. A

    Use a decision matrix only when all candidates have identical properties.

  2. B

    Choose the candidate with the highest score even if it fails a mandatory requirement.

  3. C

    Use a decision matrix with justified weights and consistent evidence to compare candidates.

  4. D

    Replace all material-property data with a single unweighted opinion.

20
Choose one
1 point

A candidate material's strength data come from a different processing route and test temperature than the proposed component. What should the designer do before relying on those data?

  1. A

    Use generic values for the material family because grade and processing do not affect properties.

  2. B

    Check that the data match the specified grade, processing route, orientation, temperature, and loading conditions.

  3. C

    Use only the highest reported property value, regardless of the test conditions.

  4. D

    Compare data from different conditions without adjustment because the material name is the same.