Switch Gear Which of the following is used in liquid fuses ? sulphur hexafluoride transformer oil distilled water carbon tetrachloride sulphur hexafluoride transformer oil distilled water carbon tetrachloride ANSWER DOWNLOAD EXAMIANS APP
Switch Gear To reduce short circuit fault currents......... are used. resistors None of these reactors capacitors resistors None of these reactors capacitors ANSWER DOWNLOAD EXAMIANS APP
Switch Gear If the fault occurs near the impedance relay, the V/ I ratio will be Lower than that of if fault occurs away from the relay higher than that of if fault occurs away from the relay constant for all distances None of these Lower than that of if fault occurs away from the relay higher than that of if fault occurs away from the relay constant for all distances None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The single phasing relays are used for the protection of two phase motors only two single phase motors running in parallel single phase motors only three phase motors two phase motors only two single phase motors running in parallel single phase motors only three phase motors ANSWER DOWNLOAD EXAMIANS APP
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 12.5 A 25 A 6.25 A 3.125 A 12.5 A 25 A 6.25 A 3.125 A ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The arc voltage produced in AC circuit breaker is always lagging the arc current by 90° None of these In phase with the arc current leading the arc current by 90° lagging the arc current by 90° None of these In phase with the arc current leading the arc current by 90° ANSWER DOWNLOAD EXAMIANS APP
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