SSC JE Electrical 2019 with solution SET-1 The ratio of average energy demand to maximum demand during a specific period in Power factor Form factor Load factor Utilization factor Power factor Form factor Load factor Utilization factor ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The ratio of average energy demand to maximum demand during a specific period is called the load factor.Load Factor = Average Load/Maximum Demand
SSC JE Electrical 2019 with solution SET-1 An electric motor in which both the rotor and stator fields rotate with the same speed is called Induction motor DC motor Synchronous motor Universal motor Induction motor DC motor Synchronous motor Universal motor ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In the synchronous motor, the stator and rotor rotate at the same speed.
SSC JE Electrical 2019 with solution SET-1 If N = linkage flux, then the linkage flux per unit current is defined as: Leakage coefficient Magnetomotive force Inductive reactance Inductance Leakage coefficient Magnetomotive force Inductive reactance Inductance ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The inductance L of this coil is defined as the flux linkage per unit current and its unit is Henry.L =Λ/IWhereΛ = Flux linkageI = current
SSC JE Electrical 2019 with solution SET-1 A single-phase circuit’s power factor can be measured with a/an Energy meter alone Combination of a voltmeter and ammeter Combination of a voltmeter, ammeter, and wattmeter Wattmeter alone Energy meter alone Combination of a voltmeter and ammeter Combination of a voltmeter, ammeter, and wattmeter Wattmeter alone ANSWER DOWNLOAD EXAMIANS APP
SSC JE Electrical 2019 with solution SET-1 Find the frequency of rotor induced EMF of a 3-phase, 440V, 50 Hz induction motor has a slip of 10% 2.5Hz 50Hz 25Hz 5Hz 2.5Hz 50Hz 25Hz 5Hz ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given DataVoltage = 440 VFrequency = 50 HzSlip = 10% =0.1Now,Rotor frequency = slip × frequency= 0.1 × 50 = 5 Hz
SSC JE Electrical 2019 with solution SET-1 The power factor of an A.C. circuit is equal to R/Z Z/R R/XC R/XL R/Z Z/R R/XC R/XL ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In electrical engineering, the power factor of an AC electrical power system is defined as the ratio of the real power flowing to the load to the apparent power in the circuit ” R/Z”.
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