Important MCQ questions for GATE, ESE Engineering Service Examination, IES, PSU Examination and Study Material For Electrical and Electronics Engineering in Circuit Theory, Network Theory, Material Science, Power System, Control System, Measurement, Power Electronics, Transformer and Electrical Machine, Control System, EMT, Power Electronics, Microprocessor and Communication System.
Monday, February 22, 2016
In air-blast circuit breakers, the pressure of the air is of the order of:
A) 100 mm Hg B) 1 kg / cm2 C) 20 kg / cm2 to 30 kg / cm2 D) 200 kg / cm2 to 300 kg / cm2
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