SSC JE Electrical 2019 with solution SET-1 Prevention of interference with neighboring telephone lines can be done by: Reducing skin effect Transposing transmission lines Using bundled conductors Reducing corona Reducing skin effect Transposing transmission lines Using bundled conductors Reducing corona ANSWER DOWNLOAD EXAMIANS APP
SSC JE Electrical 2019 with solution SET-1 Hunting occurs in a/an motor DC series Synchronous Induction DC shunt DC series Synchronous Induction DC shunt ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Sudden changes of load on synchronous motors may sometimes set up oscillations that are superimposed upon the normal rotation, resulting in periodic variations of a very low frequency in speed. This effect is known as hunting or phase-swinging.
SSC JE Electrical 2019 with solution SET-1 The Thevenin’s resistance as seen through the terminals A and B is: 5 Ω 4 Ω 8 Ω 6 Ω 5 Ω 4 Ω 8 Ω 6 Ω ANSWER DOWNLOAD EXAMIANS APP
SSC JE Electrical 2019 with solution SET-1 Identify the important feature of a DC series motor Medium starting torque Zero starting torque High starting torque Low starting torque Medium starting torque Zero starting torque High starting torque Low starting torque ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In DC series motor Torque (Ta) increase as the Square of armature current (Ia) Ta ∝ Ia2. So DC motor provides high starting torque.
SSC JE Electrical 2019 with solution SET-1 _____ power plant is the plant which uses a non-conventional source of energy Nuclear Hydroelectric Wind Thermal Nuclear Hydroelectric Wind Thermal 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 Auto-transformer Star-delta Direct-on-line Rotor-resistance Auto-transformer Star-delta Direct-on-line Rotor-resistance ANSWER DOWNLOAD EXAMIANS APP
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