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The ratio of the length of the drawing of the object to the actual length of the object is called ___________(a) Resulting fraction(b) Representative figure(c) Representative fraction(d) Representative indexThe question was posed to me in exam.The above asked question is from Scales topic in portion Lettering Practice, Scales & Curves of Civil Engineering Drawing

Answer»

The correct option is (c) Representative fraction

Easiest explanation: Representative fractions are a UNIT-less relation between one “unit” on the map and however many “units” of the same type on the ground. When a 1 cm long line in a drawing SHEET represents 1 m length of the ACTUAL object on the ground, the R.F is equal to 1 cm/1 m = 1/100. These are of 3 types-full SCALE, reduced scale and ENLARGED scale.



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