Power Systems Find the surge impedance of a line when inductance is 160 mH and capacitance is 1µF? 800 Ω 160 Ω 200 Ω 400 Ω 800 Ω 160 Ω 200 Ω 400 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems In coal fired thermal power stations, what are the electrostatic precipitators used for? To keep the air heaters clean All of these To collect the dust particles from the flue gases To remove dust particles setting on the bus bar conductors in the station switch yard To keep the air heaters clean All of these To collect the dust particles from the flue gases To remove dust particles setting on the bus bar conductors in the station switch yard ANSWER DOWNLOAD EXAMIANS APP
Power Systems Sum of the elements of row i equal to shunt admittances connected to bus i. If this summation is zero, indicates there is no None of these both 1 and 2 mutual coupling shunt admittance None of these both 1 and 2 mutual coupling shunt admittance ANSWER DOWNLOAD EXAMIANS APP
Power Systems Condition for maximum voltage regulation tanφ = X/R cosφ = X/R tanφ = R/X cosφ = R/X tanφ = X/R cosφ = X/R tanφ = R/X cosφ = R/X ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following circuit breakers produce least arc energy? Plain oil CB. Air blast CB. Air break CB. Minimum oil CB. Plain oil CB. Air blast CB. Air break CB. Minimum oil CB. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following insulator is practically used for railway crossings? string insulator strain insulator pin insulator All of these string insulator strain insulator pin insulator All of these ANSWER DOWNLOAD EXAMIANS APP
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