Switch Gear An overcurrent relay having current settling of 125% is connected to a supply circuit through a current transformer of 400/5 A. The pick-up current is 25 A 3.125 A 12.5 A 6.25 A 25 A 3.125 A 12.5 A 6.25 A ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A fuse is never inserted in negative of dc circuit neutral wire phase line positive of dc circuit negative of dc circuit neutral wire phase line positive of dc circuit ANSWER DOWNLOAD EXAMIANS APP
Switch Gear SF6 gas is yellow in colour is nontoxic None of these has pungent small is lighter than air is yellow in colour is nontoxic None of these has pungent small is lighter than air ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Arc in a circuit breaker behaves as a capacitive reactance a resistance decreasing with voltage rise across the arc an inductive reactance a resistance increasing with voltage rise across the arc a capacitive reactance a resistance decreasing with voltage rise across the arc an inductive reactance a resistance increasing with voltage rise across the arc ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Overheating of relay contacts or contact born out is due to all of these too low contact pressure slow making and breaking of load circuit contacts foreign matter on the contact surface all of these too low contact pressure slow making and breaking of load circuit contacts foreign matter on the contact surface ANSWER DOWNLOAD EXAMIANS APP
Switch Gear To protect most of the electrical equipment handling low power, the types of relays used are Thermocouple None of these Both of the listed here Electronic and bimetallic Thermocouple None of these Both of the listed here Electronic and bimetallic ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS