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? 3%, 1455 rpm 4%, 1440 rpm 4%, 1455 rpm 3%, 1440 rpm 3%, 1455 rpm 4%, 1440 rpm 4%, 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) What is the full form of the acronym 'BCCI' in sports? Board of Control for Cricket in India Board of Cricket Commentary in International Board of Common Cricket in International Board of Cricket Committee in India Board of Control for Cricket in India Board of Cricket Commentary in International Board of Common Cricket in International Board of Cricket Committee in India ANSWER DOWNLOAD EXAMIANS APP
MGVCL Exam Paper (30-07-2021 Shift 1) Which of the following is the layer of a computer system between the hardware and the user program? System Environment Application Software None of these Operating System System Environment Application Software None of these Operating System 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. 730 mH 1135 mH 1270 mH 932 mH 730 mH 1135 mH 1270 mH 932 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) Which of the following architectures is also known as "Five Principles of Peaceful Co-existence"? Manusmriti Vedanga Panchsheel Panchayatana Manusmriti Vedanga Panchsheel Panchayatana ANSWER DOWNLOAD EXAMIANS APP
MGVCL Exam Paper (30-07-2021 Shift 1) 1.મંગલ + આચરણ - મંગલાચરણ2. હરિ+ઇન્દ્ર - હરીન્દ્ર3.નર+ઈશ - નરેશ4. પ્રતિ+અક્ષ - પ્રતિક્ષઉપરોક્ત વર્ણવેલમાંથી કઈ સંધિ સાચી છે. 2,3, 1,3 2,1 1,4 2,3, 1,3 2,1 1,4 ANSWER DOWNLOAD EXAMIANS APP
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