TEDI EXAM

• The color wheel is divided into 12 sections representing different colors:

  • Primary colors: red, yellow, blue
  • Secondary colors: green, orange, purple
  • Tertiary colors: mix of primary and secondary colors

  
• A computer with an analog to digital converter (ADC) and a digital to analog converter (DAC) for signal conversion

  
• Conversion of an analog signal into a digital signal:

  • Analog signal is continuous
  • Digital signal is discrete samples taken at regular intervals

  
• Increasing the sample rate of an analog signal results in a more accurate digital representation

  
• Technical drawing is a standardised universal language that allows essential information to be presented accurately to build an object
• Artistic drawing, on the other hand, generally has no rules and allows for creativity
• Drawing materials for technical drawing include paper, pencils, ink, sketches, tracing paper, compasses, protractors, rulers, scale rulers, and set squares
• Paper formats for technical drawing range from A0 to A6, with specific dimensions for each size
• Graphite and clay are used in pencils and propelling pencils for technical drawing
• Ink, dip pens, and fine-point pens are also common drawing materials
• Scales in technical drawing are used to represent objects in their real dimensions, either enlarged or reduced, to fit the drawing paper
• Annotations in technical drawing involve adding dimensions of the object to the drawing, following specific standards like using dimension lines, arrows, and numerical dimensions