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Which of the following compass is used to scribe a circle or an arc with a large diameter?

Which of the following compass is used to scribe a circle or an arc with a large diameter? Correct Answer Trammel compass

Concept:

Trammel compass

  • It is used to draw large circles or arcs that are beyond the limit of the dividers
  • It consists of a bar with two movable heads

 

Spring Compass
  • The spring compass is used to draw circles and small arcs of 25 mm radii.
  • The screw and nut arrangement is used to set the radius accurately

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  • When using spring type wing compass the measurement once taken will not vary while marking.
  • The two legs of the compass should always be equal in length. 
  • The compass is specified by the type of joints and length.

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