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 3%, 1455 rpm 4%, 1440 rpm 3%, 1440 rpm 4%, 1455 rpm 3%, 1455 rpm 4%, 1440 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) મારુતારુંનો ઝગડો હજી ખતમ થયો નથી, ચારપાંચ વર્ષ થઇ ગયા અને રાતદિવસ સાથે ઉઠવા-બેસવાનું તો ચાલુ જ છે. ઉપરોક્ત વાક્યમાં ક્યા ક્યા વ્યાકરણીય સમાસનો ઉપયોગ કરાયો છે? અવ્યવીભાવ, મધ્યમપદલોપી દ્વન્દ્વ, મધ્યમપદલોપી દ્વન્દ્વ તત્પુરુષ, અવ્યવીભાવ, મધ્યમપદલોપી દ્વન્દ્વ, મધ્યમપદલોપી દ્વન્દ્વ તત્પુરુષ, ANSWER DOWNLOAD EXAMIANS APP
MGVCL Exam Paper (30-07-2021 Shift 1) Choose the word which best expresses the similar meaning of the given word " CALLOW" Calm Immature Sophisticated Mature Calm Immature Sophisticated Mature ANSWER DOWNLOAD EXAMIANS APP
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 1-(√3/2) √3-1 √3 -1 0.5 1-(√3/2) √3-1 √3 -1 0.5 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) Murray loop test is performed on a faulty cable 300 m long. At balance, the resistance connected to the faulty core was set at 15 Ω and the resistance of the resistor connected to the sound core was 45 Ω. Calculate the distance of the fault point from the test end. 450 m 225 m 150 m 75 m 450 m 225 m 150 m 75 m ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Where,R2 is the resistance connected to the faulty core in ohmR2 is the resistance of the resistor connected to the sound core in ohmR1 Distance of fault location (Lx) = R2/(R1 + R2)*(2*L)= (15/60)*600= 150 m
MGVCL Exam Paper (30-07-2021 Shift 1) Rearrange the following to form a meaningful sentence and find the most logical order from the given options.P: 60 countries using dance as a tool forQ: building social cohesion and resolvingR: conflict throughout the worldS: battery Dance has travelled far and wide across PQSR PQRS SPRQ SPQR PQSR PQRS SPRQ SPQR ANSWER DOWNLOAD EXAMIANS APP
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