SSC JE Electrical 2019 with solution SET-1 When the supply to the excitation fails, the synchronous generator acts like a/an Synchronous generator Induction motor Synchronous motor Induction generator Synchronous generator Induction motor Synchronous motor Induction generator ANSWER DOWNLOAD EXAMIANS APP
SSC JE Electrical 2019 with solution SET-1 An electric heater is connected across 230V and it draws a current of 2A. Then the resistance offered by the heater is? 115 ohm 290 ohm 11.5 ohm 29 ohm 115 ohm 290 ohm 11.5 ohm 29 ohm ANSWER EXPLANATION DOWNLOAD EXAMIANS APP GivenVoltage V = 230 VCurrent I = 2 AResistance R = V/IR = 230/2 = 115 Ω
SSC JE Electrical 2019 with solution SET-1 The function of condenser in a Thermal power plant is: Purify water Condense water Condense used steam into water Purify steam Purify water Condense water Condense used steam into water Purify steam ANSWER DOWNLOAD EXAMIANS APP
SSC JE Electrical 2019 with solution SET-1 ______starting method CANNOT be used for starting a 3-phase squirrel cage induction motor Rotor-resistance Auto-transformer Star-delta Direct-on-line Rotor-resistance Auto-transformer Star-delta Direct-on-line ANSWER DOWNLOAD EXAMIANS APP
SSC JE Electrical 2019 with solution SET-1 Two decimal coils A and B of 1000 turns each lies in the parallel plane such that 80% of the flux produced by one coil links with the other. If a current of 5A flowing in A produces a flux of 0.05 mWb, then the flux linking with coil B is: 0.004 mWb 0.4 mWb 0.04 mWb 4 mWb 0.004 mWb 0.4 mWb 0.04 mWb 4 mWb ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Flux in coil A = 0.05 mWb = 5 × 10−5 wb = φANo. of turns NA = NB = 1000Flux linkage in a coil with B = Flux linkage in coil A × 80/100= 0.8 × 5 × 10−5= 4 × 10−5 wb =0.04 mwb
SSC JE Electrical 2019 with solution SET-1 Prevention of interference with neighboring telephone lines can be done by: Reducing skin effect Using bundled conductors Reducing corona Transposing transmission lines Reducing skin effect Using bundled conductors Reducing corona Transposing transmission lines ANSWER DOWNLOAD EXAMIANS APP
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