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Mechanical Engineering : Engineering Drawing - Quiz(MCQ)
A plot of 35,000 sq m is drawn on map as plot of 14 cm and 5 cm. Find the R.F.
A)
1/34930
B)
1/2236
C)
1/35000
D)
1/50000

Correct Answer : Option (B) :   1/2236


Explanation : Area of plot in drawing is 14 x 5 = 70 sq cm (equivalent to 35000 sq m). So 1 sq cm =35000/70 = 500 sq m. 1 cm = square root of 500 m = 22.3 m (equivalent to 1 cm). Representative fraction = 1/ (22.36 m) =1/ (2236 cm).

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