Mechanical Properties and Technical Drawings Quiz
51 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

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 (D)</p> Signup and view all the answers

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

<p>Hardness (B)</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 (B)</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. (A)</p> Signup and view all the answers

What is the main component of ferrous alloys?

<p>Iron (A)</p> Signup and view all the answers

What types of lines are used in technical drawings?

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

Which alloy is known for its excellent electrical conductivity?

<p>Brass (D)</p> Signup and view all the answers

What characterizes cast iron as compared to steel?

<p>Contains over 2% carbon (C)</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. (A)</p> Signup and view all the answers

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

<p>Corrosion resistance (B)</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. (C)</p> Signup and view all the answers

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

<p>Steel (D)</p> Signup and view all the answers

What does compression do to materials?

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

Which type of mechanical constraint involves twisting materials?

<p>Torsion (B)</p> Signup and view all the answers

What are horizontal straight lines characterized by?

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

Which geometric lines are defined by their radii?

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

What symbol is used to represent tension in mechanical constraints?

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

Which force is described as bending materials?

<p>Deflection (A)</p> Signup and view all the answers

What distinguishes vertical straight lines from horizontal lines?

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

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

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

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

<p>Shearing (C)</p> Signup and view all the answers

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

<p>Ruler (B)</p> Signup and view all the answers

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

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

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

<p>Hidden line (D)</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 (A)</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 (A)</p> Signup and view all the answers

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

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

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

<p>Iron (C)</p> Signup and view all the answers

What is a unique characteristic of aluminum?

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

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

<p>Copper (A)</p> Signup and view all the answers

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

<p>Zinc (B)</p> Signup and view all the answers

What property makes magnesium notable among the metals listed?

<p>Flammability (C)</p> Signup and view all the answers

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

<p>Tin (B)</p> Signup and view all the answers

What is the application of chrome that sets it apart?

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

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

<p>Tin (A)</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 (A)</p> Signup and view all the answers

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

<p>Insulation (C)</p> Signup and view all the answers

What material is particle board primarily made from?

<p>Wood chips and wood waste (A)</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 (B)</p> Signup and view all the answers

What is a common application for fibreboard?

<p>Furniture (D)</p> Signup and view all the answers

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

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

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

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

What is the purpose of a construction line?

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

What does a center line indicate?

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

Which line type includes arrowheads at each end?

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

How would you recognize a hatching line?

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

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

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

What characteristic does a leader line have?

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

Flashcards

What is technology?

Technology is the use of techniques to design, build, and maintain objects and systems.

What are technical drawings used for?

Technical drawings use symbols, lines, and shapes to communicate exact information for building or understanding objects and systems.

Why are conventions important in technical drawings?

Technical drawings use conventions or rules to ensure everyone understands the same information.

What are basic lines in technical drawings?

Basic lines in technical drawings have specific meanings to indicate different parts of an object.

Signup and view all the flashcards

What is a geometric line?

A geometric line is a straight line with a specific purpose, such as showing the axis of a part or its dimension.

Signup and view all the flashcards

Compression

A force that squeezes or crushes a material.

Signup and view all the flashcards

Tension

A force that stretches a material.

Signup and view all the flashcards

Torsion

A force that twists a material.

Signup and view all the flashcards

Deflection

A force that bends a material.

Signup and view all the flashcards

Shearing

A force that cuts or tears a material.

Signup and view all the flashcards

Hardness

A material's ability to resist being scratched or dented.

Signup and view all the flashcards

Elasticity

A material's ability to return to its original shape after being stretched or compressed.

Signup and view all the flashcards

Resilience

A material's ability to absorb energy from an impact without breaking.

Signup and view all the flashcards

Ductility

A material's ability to be stretched into a wire without breaking.

Signup and view all the flashcards

Malleability

A material's ability to be hammered or rolled into thin sheets without breaking.

Signup and view all the flashcards

Horizontal Straight Line

A line that runs perfectly straight and parallel to the horizon.

Signup and view all the flashcards

Leader Line

Used to connect a dimension or specification to a feature on a technical drawing.

Signup and view all the flashcards

Vertical Straight Line

A line that runs perfectly straight and perpendicular to horizontal lines.

Signup and view all the flashcards

Oblique Line

A line that is neither horizontal nor vertical; it slants or slopes in any direction.

Signup and view all the flashcards

Center Line

A thin line representing the center of a symmetrical object in a technical drawing.

Signup and view all the flashcards

Visible Line

A solid line showing parts of an object that are visible in a technical drawing.

Signup and view all the flashcards

Circle

A perfectly round shape with all points equidistant from the center.

Signup and view all the flashcards

Ellipse

A closed shape with an oval-like form; it has two axes, where one axis is longer than the other.

Signup and view all the flashcards

Hidden Line

A dashed line representing parts of an object that are hidden from view in a technical drawing.

Signup and view all the flashcards

Cutting Plane Line

A line used to indicate where a cross-section view is taken, revealing the inside of an object.

Signup and view all the flashcards

Treated Wood

Wood treated with heat or a copper-based chemical to increase durability against moisture.

Signup and view all the flashcards

Laminated Wood

Made by gluing together smaller pieces of wood, often into layers. This creates a stronger, more stable wood.

Signup and view all the flashcards

Plywood

Made by gluing together large sheets of wood with the grain directions crossing, providing strength.

Signup and view all the flashcards

Particle Board

Made from wood chips and waste bonded together, useful for furniture and building.

Signup and view all the flashcards

Fibreboard

Made from separated wood fibers bonded together, useful for insulation and furniture.

Signup and view all the flashcards

What is an alloy?

A material created by mixing a metal with other substances, such as other metals, or non-metals. The resulting material has specific properties that differ from the metals it is made of.

Signup and view all the flashcards

What are ferrous alloys?

Alloys that contain iron as their primary component.

Signup and view all the flashcards

What are non-ferrous alloys?

Alloys that contain a metal other than iron as their primary component.

Signup and view all the flashcards

What is steel?

A ferrous alloy made of iron and carbon, with less than 1.5% carbon. It is often combined with nickel, chrome, and zinc.

Signup and view all the flashcards

What is bronze?

A non-ferrous alloy composed primarily of copper and tin. The color varies from yellow to red to brown.

Signup and view all the flashcards

Construction Line

A fine, continuous line used during initial sketching. These lines are often erased or darkened after the final drawing is completed.

Signup and view all the flashcards

Dimension Line

A thin, continuous line used to indicate the length or size of an object. It's like putting a ruler on a drawing.

Signup and view all the flashcards

Extension Line

Thin, straight lines that extend from an object's features to help define the start and end points of a dimension.

Signup and view all the flashcards

Hatching

Fine, slanted lines that are spaced evenly, used to indicate a cross-section or cutting plane. It's like showing you the insides of an object.

Signup and view all the flashcards

Metal

A substance that is naturally found in the earth, extracted from ores located in mines.

Signup and view all the flashcards

Metal Separation

A process where different techniques are used to separate the desired ores from the mined rock.

Signup and view all the flashcards

Alloy

A mixture of two or more metals, often created to enhance the properties of the resulting material.

Signup and view all the flashcards

Corrosion Resistance

The ability of a metal to resist corrosion, such as rusting.

Signup and view all the flashcards

Iron (Fe)

Iron is a silvery-gray metal that is commonly used in many applications due to its strength and affordability.

Signup and view all the flashcards

Copper (Cu)

Copper is a reddish-brown metal, known for its excellent electrical conductivity, making it ideal for wires and other electrical components.

Signup and view all the flashcards

More Like This

Use Quizgecko on...
Browser
Open
Browser
Browser