MGVCL Exam Paper (30-07-2021 Shift 1) Recently, Dr. Subir Vithal Gokarn passed away due to illness. He is a/an ___ Former Finance Minister Former IAS Officer Former Chief Minister of Gujarat Former RBI Deputy Governor Former Finance Minister Former IAS Officer Former Chief Minister of Gujarat Former RBI Deputy Governor ANSWER DOWNLOAD EXAMIANS APP
MGVCL Exam Paper (30-07-2021 Shift 1) The term NEFT (in banking), is an abbreviation of ___ Net Electronics Funds Transfer Net Electronics Financial Transfer National Electronics Financial Transaction National Electronic Funds Transfer Net Electronics Funds Transfer Net Electronics Financial Transfer National Electronics Financial Transaction National Electronic Funds Transfer ANSWER DOWNLOAD EXAMIANS APP
MGVCL Exam Paper (30-07-2021 Shift 1) For protection of inter-turn fault in transformer, the relays preferred are Buchholz's relay and differential relay Overcurrent relay and differential relay Overcurrent relay and Buchholz's relay Buchholz's relay, overcurrent relay and differential relay Buchholz's relay and differential relay Overcurrent relay and differential relay Overcurrent relay and Buchholz's relay Buchholz's relay, overcurrent relay and differential relay ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Intern turn winding fault can be easily detect by differential protection relay.Also detect by buchholz relay (gas operated relay), cause buchholz relay is used to detect the internal fault of transformer.
MGVCL Exam Paper (30-07-2021 Shift 1) The frequency of the emf in the stator of a 4-pole induction motor is 50 Hz, and that in the rotor is 2 Hz. What is the slip and at what speed is the motor running? 4%, 1455 rpm 4%, 1440 rpm 3%, 1455 rpm 3%, 1440 rpm 4%, 1455 rpm 4%, 1440 rpm 3%, 1455 rpm 3%, 1440 rpm ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Rotor frequency, f_r = s*f_ss = 2/50s = 0.04Ns = 120f/PNs = 1500 rpms = (Ns - Nr)/NsNr = Ns(1 - s)Nr = 1500*(1 - 0.04)Nr = 1440 rpm
MGVCL Exam Paper (30-07-2021 Shift 1) A fully controlled natural commutated 3-phase bridge rectifier is operating with a firing angle α = 30°, The peak to peak voltage ripple expressed as a ratio of the peak output dc voltage at the output of the converter bridge is 0.5 1-(√3/2) √3 -1 √3-1 0.5 1-(√3/2) √3 -1 √3-1 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Where,φ is firing angleVoltage ripple for 3-phase bridge rectifier = cos(φ) = Cos(30)= 1/2
MGVCL Exam Paper (30-07-2021 Shift 1) Choose the word which expresses nearly the opposite meaning of the given word "QUANDARY " Certainty Dilemma Embarrassment Clutch Certainty Dilemma Embarrassment Clutch ANSWER DOWNLOAD EXAMIANS APP
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