MGVCL Exam Paper (30-07-2021 Shift 1) Choose the best option from the given alternatives which can be substituted for the given word/sentenceA disease prevailing in a locality Habitat Host Endemic Epic Habitat Host Endemic Epic ANSWER DOWNLOAD EXAMIANS APP
MGVCL Exam Paper (30-07-2021 Shift 1) A coil having an inductance of 100 mH is magnetically coupled to another coil having an inductance of 900 mH. The coefficient of coupling between the coils is 0.45. Calculate the equivalent inductance if the two coils are connected in series aiding. 1270 mH 730 mH 932 mH 1135 mH 1270 mH 730 mH 932 mH 1135 mH ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Mutual inductance (M) = k*√(L1*L2)k = 0.45M = 0.45*√(900*100*10⁻⁶) = 135 mHLeq = L1 + L2 + 2MLeq = 900 + 100 + 270Leq = 1270 mH
MGVCL Exam Paper (30-07-2021 Shift 1) The necessary equation to be solved during the load flow analysis using Fast-Decoupled methid is given below:where B' and B'' are formed using the imaginary part of the bus admittance matrix Ybus, n is the total number of buses in the system, m is the number of voltage regulated buses. The size of matrix B' is∆P/|Vi|= -B' ∆δ∆Q/|Vi| = -B'' ∆|Vi| (n-m-1) x (n-m-1) (n-1) x (n-1) (n-m) x (n-m) (m-1) x (m-1) (n-m-1) x (n-m-1) (n-1) x (n-1) (n-m) x (n-m) (m-1) x (m-1) ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In FDLF method,B' corresponds to susceptance of unknown of PQ and PV busOrder of B' matrix is = (n -1)*(n - 1)Where n is total no. of buses.Order of B'' = (n - m - 1)*(n - m - 1)
MGVCL Exam Paper (30-07-2021 Shift 1) દુર્ગતિ' શબ્દનો વિરુદ્ધાર્થી શબ્દ ક્યો છે? કુગતિ અદુર્ગતી સુગતિ સળંગગતિ કુગતિ અદુર્ગતી સુગતિ સળંગગતિ ANSWER DOWNLOAD EXAMIANS APP
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. 75 m 225 m 450 m 150 m 75 m 225 m 450 m 150 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) The miniature circuit breaker (MCB) shown in figure is two pole MCB three pole MCB four pole MCB five pole MCB two pole MCB three pole MCB four pole MCB five pole MCB ANSWER DOWNLOAD EXAMIANS APP
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