A. 100 mm Hg B. 1 kg/cm2 C. 20 to 30 kg/cm2 D. 200 to 300 kg/cm2 « Previous Next »
Home DG Shipping exit exam In air blast circuit breakers, the pressure of air is of the order of A. 100 mm Hg B. 1 kg/cm2 C. 20 to 30 kg/cm2 D. 200 to 300 kg/cm2 « Previous Next »
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