Practice Test GeeksME - Materials Engineer Practice Test
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Material Properties and Testing Flashcards

6 cards from real ME practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Material Properties and Testing flashcards as text

  1. Young's modulus (elastic modulus) is a measure of a material's:

    Answer: Stiffness under elastic loading

    Young's modulus represents the ratio of stress to strain in the elastic region, quantifying a material's stiffness or resistance to elastic deformation.

  2. Poisson's ratio relates which two quantities in a material under uniaxial stress?

    Answer: Axial strain and lateral strain

    Poisson's ratio is the negative ratio of transverse (lateral) strain to axial strain when a material is stretched uniaxially.

  3. Which non-destructive testing (NDT) method is best suited for detecting internal cracks in a metal component?

    Answer: Ultrasonic testing

    Ultrasonic testing uses high-frequency sound waves to detect internal flaws and discontinuities inside materials without causing damage.

  4. The 0.2% offset yield strength is used because many materials:

    Answer: Have no clear yield point

    Many materials, especially non-ferrous alloys, do not have a distinct yield point, so the 0.2% offset method provides a standardized yield strength value.

  5. In materials testing, the term 'gauge length' refers to:

    Answer: The measured portion of the specimen in a tensile test

    Gauge length is the specific marked length of the specimen over which elongation is measured during a tensile test.

  6. Which property describes a material's ability to return to its original shape after the load is removed?

    Answer: Elasticity

    Elasticity is the ability of a material to recover its original shape and dimensions after deformation when the applied load is removed.