engineering drawings

• What are two types of drawing used in engineering?

  Freehand sketches and isometric drawings
• What are the purposes of engineering drawings?

  • Describe how a product is manufactured
  • Provide detailed information for production
• What is a freehand sketch?

  A quick drawing to visualize ideas
• What is one disadvantage of freehand sketching?

  It is slower than other methods
• What is one advantage of freehand sketching?

  Enables quick visualization of ideas
• What is an oblique drawing?

  A formal drawing method for clarity
• What is one advantage of oblique drawings?

  They provide a clear front view
• What is one disadvantage of oblique drawings?

  They are difficult to dimension
• Describe the first step in creating an oblique drawing.

  Draw the front view in 2D
• What is an isometric drawing?

  A 3D representation of an object
• What is one advantage of isometric drawings?

  They provide an overall 3D view
• What is one disadvantage of isometric drawings?

  Requires high skill to produce
• What do orthographic drawings represent?

  3D objects using several 2D views
• What are the three elevations in orthographic drawings?

  Front, Side, and Plan (Top)
• What is one advantage of orthographic drawings?

  Universal standard used by engineers
• What is one disadvantage of orthographic drawings?

  2D limits realism of the drawing
• What are exploded views used for?

  To show how parts fit together
• What is one advantage of exploded views?

  Helps understand part arrangement
• What is one disadvantage of exploded views?

  Cannot see the rear of the object
• What do assembly drawings show?

  The general arrangement of parts
• What is one advantage of assembly drawings?

  Helps understand part assembly
• What is one disadvantage of assembly drawings?

  Cannot see the rear of the object
• What are circuit diagrams used for?

  Design and maintenance of circuits
• What is one advantage of circuit diagrams?

  Clearly show how circuits are assembled
• What is one disadvantage of circuit diagrams?

  Readers need to understand symbols
• What is a wiring diagram?

  A simplified representation of a circuit

  
• What do flowcharts represent?

  A workflow or process
• What is one advantage of flowcharts?

  Show the logic of a system
• What is one disadvantage of flowcharts?

  Modification can be time-consuming
• What do block diagrams represent?

  Parts or functions of a system
• What is one advantage of block diagrams?

  Show the function of a system
• What is one disadvantage of block diagrams?

  No information about physical construction