Mechanical Properties and Technical Drawings Quiz
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Questions and Answers

Which mechanical property describes a material's ability to resist impacts temporarily without permanent deformation?

  • Elasticity
  • Hardness
  • Resilience (correct)
  • Ductility

    • What is the correct description of ductility?

  • Ability to resist permanent deformation under tension
  • Ability to regain shape after being stretched
  • Ability to stretch without breaking (correct)
  • Ability to resist compression without breaking

    • Which mechanical property is characterized by a material that can be flattened or bent without breaking?

  • Hardness
  • Elasticity
  • Tensile Strength
  • Malleability (correct)

    • What does tensile strength measure in a material?

    <p>Resistance to tension without permanent deformation</p> Signup and view all the answers

    Which property indicates how difficult it is to create an indentation in a material?

    <p>Hardness</p> Signup and view all the answers

    What is the primary purpose of technical drawings in technology?

    <p>To provide precise information for building objects</p> Signup and view all the answers

    Why is it important for designers to follow established conventions in technical drawings?

    <p>It ensures that all team members have a common understanding.</p> Signup and view all the answers

    What is the main component of ferrous alloys?

    <p>Iron</p> Signup and view all the answers

    What types of lines are used in technical drawings?

    <p>Basic lines and geometric lines</p> Signup and view all the answers

    Which alloy is known for its excellent electrical conductivity?

    <p>Brass</p> Signup and view all the answers

    What characterizes cast iron as compared to steel?

    <p>Contains over 2% carbon</p> Signup and view all the answers

    Which of the following is NOT a feature of technical drawings?

    <p>They are used to impress viewers.</p> Signup and view all the answers

    What is one of the useful properties of an aluminum alloy?

    <p>Corrosion resistance</p> Signup and view all the answers

    What role do drawings play in the context of technology?

    <p>They illustrate how objects appear and communicate their functions.</p> Signup and view all the answers

    Which of the following alloys is primarily used in the construction and automobile industries?

    <p>Steel</p> Signup and view all the answers

    What does compression do to materials?

    <p>It crushes or squeezes them.</p> Signup and view all the answers

    Which type of mechanical constraint involves twisting materials?

    <p>Torsion</p> Signup and view all the answers

    What are horizontal straight lines characterized by?

    <p>Being perfectly parallel to each other.</p> Signup and view all the answers

    Which geometric lines are defined by their radii?

    <p>Circles and ellipses</p> Signup and view all the answers

    What symbol is used to represent tension in mechanical constraints?

    <p>→ ←</p> Signup and view all the answers

    Which force is described as bending materials?

    <p>Deflection</p> Signup and view all the answers

    What distinguishes vertical straight lines from horizontal lines?

    <p>They are perpendicular to horizontal lines.</p> Signup and view all the answers

    Which of the following is NOT a type of geometric line mentioned?

    <p>Curved lines</p> Signup and view all the answers

    What type of mechanical constraint is indicated by the symbol ⤶?

    <p>Shearing</p> Signup and view all the answers

    Which tool is primarily used for the precise drawing of geometric lines?

    <p>Ruler</p> Signup and view all the answers

    What type of line is used to indicate a dimension on a drawing?

    <p>Dimension line</p> Signup and view all the answers

    Which line type represents a part of the object that is not visible?

    <p>Hidden line</p> Signup and view all the answers

    What line type is used to extend the dimension line to a point of reference?

    <p>Extension line</p> Signup and view all the answers

    Which of the following is a thin line representing the center line of a symmetrical part?

    <p>Center line</p> Signup and view all the answers

    In a technical drawing, which line would you use for guidance or construction?

    <p>Construction line</p> Signup and view all the answers

    Which metal is most commonly used and can rust if exposed to oxygen?

    <p>Iron</p> Signup and view all the answers

    What is a unique characteristic of aluminum?

    <p>It cannot rust.</p> Signup and view all the answers

    Which of these metals is recognized for its excellent electrical conductivity?

    <p>Copper</p> Signup and view all the answers

    Which metal is primarily used in electrical wires and has good corrosion resistance?

    <p>Zinc</p> Signup and view all the answers

    What property makes magnesium notable among the metals listed?

    <p>Flammability</p> Signup and view all the answers

    Which metal has the lowest melting point according to the provided information?

    <p>Tin</p> Signup and view all the answers

    What is the application of chrome that sets it apart?

    <p>Used as a surface coat</p> Signup and view all the answers

    Which metal is described as having a silvery appearance and is primarily used in welding?

    <p>Tin</p> Signup and view all the answers

    What is the main manufacturing process used to create laminated wood?

    <p>Gluing small pieces of wood together</p> Signup and view all the answers

    Which of the following applications is NOT associated with treated wood?

    <p>Insulation</p> Signup and view all the answers

    What material is particle board primarily made from?

    <p>Wood chips and wood waste</p> Signup and view all the answers

    Which type of modified wood is specifically made to ensure strength through a criss-cross arrangement?

    <p>Plywood</p> Signup and view all the answers

    What is a common application for fibreboard?

    <p>Furniture</p> Signup and view all the answers

    What is the characteristic of a visible line in technical drawings?

    <p>Thick and continuous</p> Signup and view all the answers

    Which line type indicates outlines that are not visible in the current view?

    <p>Hidden Line</p> Signup and view all the answers

    What is the purpose of a construction line?

    <p>To provide a preliminary sketch</p> Signup and view all the answers

    What does a center line indicate?

    <p>The center of a circle or symmetrical feature</p> Signup and view all the answers

    Which line type includes arrowheads at each end?

    <p>Dimension Line</p> Signup and view all the answers

    How would you recognize a hatching line?

    <p>By its fine and slanted appearance, equally spaced</p> Signup and view all the answers

    Which line indicates the boundaries of a measurement in technical drawings?

    <p>Extension Line</p> Signup and view all the answers

    What characteristic does a leader line have?

    <p>Fine, continuous with an arrowhead at one end</p> Signup and view all the answers

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