Switch Gear Outdoor switchgear is generally used for voltage beyond 132 kV 66 kV 33 kV 11 kV 132 kV 66 kV 33 kV 11 kV ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Overheating of relay contacts or contact born out is due to slow making and breaking of load circuit contacts too low contact pressure all of these foreign matter on the contact surface slow making and breaking of load circuit contacts too low contact pressure all of these foreign matter on the contact surface ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The making capacity of a circuit breaker is equal to √2 × symmetrical breaking capacity None of these 2.55 × symmetrical breaking capacity √3 × symmetrical breaking capacity √2 × symmetrical breaking capacity None of these 2.55 × symmetrical breaking capacity √3 × symmetrical breaking capacity 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 None of these extinguish the arc All of these lubricate the contacts insulate the contacts from switch body None of these extinguish the arc All of these lubricate the contacts ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Insulation resistance of high voltage circuit breakers is more than 1 mega ohms 500 mega ohms 100 mega ohms 10 mega ohms 1 mega ohms 500 mega ohms 100 mega ohms 10 mega ohms ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The fuse wire, in DC circuit, is inserted in positive circuit only Both positive and negative circuit negative circuit only None of these positive circuit only Both positive and negative circuit negative circuit only None of these ANSWER DOWNLOAD EXAMIANS APP
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