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GATE-Civil-Engg-2018-->View question

A core cutter of 130 mm height has inner and outer diameters of 100 mm and 106 mm, respectively. The area ratio of the core cutter (in %, up to two decimal places) is ______ (GATE-CIVIL-Engg-2018)

A core cutter of 130 mm height has inner and outer diameters of 100 mm and 106 mm,
respectively. The area ratio of the core cutter (in %, up to two decimal places) is ______ (GATE-CIVIL-Engg-2018)


Asked On2019-04-11 14:04:40 by:naikaumprakash

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Ans. 12.36 
Sol. 
Inner diameter of core cutter, 100mm 
Di  Outer diameter of core cutter, 0 D 106mm 
To find : Area ratio 
Area ratio = (D0^2 -Di^2)/DI^2 * 100 = 12.36 %
Hence, the area ratio is 12.36 %.

Answerd on:2019-05-24 Answerd By:Jaynil-Gaglani

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