Switch Gear The normal current in a power line is 100 A. If a short-circuit fault occurs on the line, then one can expect the short-circuit current to be more than 1000 A 200 A 100 A 300 A more than 1000 A 200 A 100 A 300 A ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A fuse in a motor circuit provides protection against short-circuit and overload overload None of these open circuit, short-circuit and overload short-circuit and overload overload None of these open circuit, short-circuit and overload ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A fuse is never inserted in positive of dc circuit negative of dc circuit phase line neutral wire positive of dc circuit negative of dc circuit phase line neutral wire ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The contacts of high voltage switches used in power system are submerged in oil. The main purpose of the oil is to insulate the contacts from switch body extinguish the arc None of these lubricate the contacts All of these insulate the contacts from switch body extinguish the arc None of these lubricate the contacts All of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Overheating of relay contacts or contact born out is due to too low contact pressure all of these slow making and breaking of load circuit contacts foreign matter on the contact surface too low contact pressure all of these slow making and breaking of load circuit contacts foreign matter on the contact surface ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The rate of rise of restriking voltage depends on the inductance of the system only the type of circuit breaker the capacitance of the system only both inductance and capacitance of the system the inductance of the system only the type of circuit breaker the capacitance of the system only both inductance and capacitance of the system ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS