SSC JE Electrical 2018 with solution SET-1 The speed of a synchronous motor can be changed by Changing the frequency Changing the load Changing the supply voltage Changing the supply Terminals Changing the frequency Changing the load Changing the supply voltage Changing the supply Terminals ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The speed of the synchronous motor is given asNs = 120f/PTherefore by changing the number of poles and frequency, we can change the speed of the synchronous motor.
SSC JE Electrical 2018 with solution SET-1 The air preheater in a thermal power plant is called as Very essential Device Starting Device Efficiency increasing equipment Safety Device Very essential Device Starting Device Efficiency increasing equipment Safety Device ANSWER DOWNLOAD EXAMIANS APP
SSC JE Electrical 2018 with solution SET-1 In transmission line generally, the wire used are Copper wires Aluminum wires ACSR wires Iron wires Copper wires Aluminum wires ACSR wires Iron wires ANSWER DOWNLOAD EXAMIANS APP
SSC JE Electrical 2018 with solution SET-1 Calculate the induced emf (in V) in the inductor of a series RL circuit having the inductance of 1.8 H and resistance of 90 Ohms after 20 milli-seconds when supplied by a 20 V DC source 14.76 7.36 10.03 20 14.76 7.36 10.03 20 ANSWER DOWNLOAD EXAMIANS APP
SSC JE Electrical 2018 with solution SET-1 Bucholz relay is operated by Gas pressure Electromagnetic Induction Electrostatic Induction Eddy currents Gas pressure Electromagnetic Induction Electrostatic Induction Eddy currents ANSWER DOWNLOAD EXAMIANS APP
SSC JE Electrical 2018 with solution SET-1 LED lamp have a general life expectancy of 5000 hrs 50000 hrs 1000 hrs 15000 hrs 5000 hrs 50000 hrs 1000 hrs 15000 hrs ANSWER DOWNLOAD EXAMIANS APP
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