Switch Gear Most of the relays on service on electric power system are thermal relays electro-mechanical relays None of these electronic relays thermal relays electro-mechanical relays None of these electronic relays ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Back up protection is generally used for protection against open-circuit faults only short-circuit faults only None of these both open and short-circuit faults open-circuit faults only short-circuit faults only None of these both open and short-circuit faults ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Which of the following CB's is generally used in railways applications ? sf 6 circuit breaker low oil circuit breaker air break circuit breaker bulk oil circuit breaker sf 6 circuit breaker low oil circuit breaker air break circuit breaker bulk oil circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear For the protection of power station buildings against direct strokes the requirements are interception interception and conduction interception, conduction and dissipation None of these interception, conduction, dissipation and reflection interception interception and conduction interception, conduction and dissipation None of these interception, conduction, dissipation and reflection ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Which of the following is the least expensive protection for over current is low voltage system ? rewireable fuse oil circuit breaker isolator air break circuit breaker rewireable fuse oil circuit breaker isolator air break circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The short circuit in any winding of the transformer is the result of insulation failure impulse voltage mechanical vibration loose connection insulation failure impulse voltage mechanical vibration loose connection ANSWER DOWNLOAD EXAMIANS APP