MGVCL Exam Paper (30-07-2021 Shift 1) An RLC series circuit consists of R = 16 Ω, L = 5 mH and C = 2 μF. Calculate the quality factor. 2.125 5.125 3.125 4.125 2.125 5.125 3.125 4.125 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP For series RLC circuit,Q = (1/R)*√(L/C)Q = 1/16*√(5 mH/2 μF)Q = 50/16Q = 3.125
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%, 1440 rpm 3%, 1455 rpm 3%, 1440 rpm 4%, 1455 rpm 4%, 1440 rpm 3%, 1455 rpm 3%, 1440 rpm 4%, 1455 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) Which of the following malicious programs does not replicate automatically? Virus Trojan horse Trap doors Worm Virus Trojan horse Trap doors Worm ANSWER DOWNLOAD EXAMIANS APP
MGVCL Exam Paper (30-07-2021 Shift 1) Insulation Power Factor testing on an oil-filled transformer is not helpful in determining ___ Whether the oil test indicates moisture Condition of paper insulation (change in watts losses) Turns ratio values Movement of the windings (change in capacitance) Whether the oil test indicates moisture Condition of paper insulation (change in watts losses) Turns ratio values Movement of the windings (change in capacitance) ANSWER EXPLANATION DOWNLOAD EXAMIANS APP A form of AC testing that applies voltage and measures the leakage/loss current of electrical insulation.It is a type of insulation testing used to evaluate the integrity of electrical insulation.
MGVCL Exam Paper (30-07-2021 Shift 1) A given solar cell has the following specifications:Open-circuit voltage, Voc: 0.7 VShort-circuit current, Isc: 3.5 AShort-circuit current, Isc: 3.5 AShort-circuit current, Isc: 3.5 AIf the solar cell operates at maximum power point, calculate the efficiency. 15.70% 13.70% 14.70% 12.70% 15.70% 13.70% 14.70% 12.70% ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Equation is given by:Efficiency = (F.F*Voc*Isc)/Pin= (0.6*3.5*0.7)/10= 0.14702% efficiency = 14.7 %
MGVCL Exam Paper (30-07-2021 Shift 1) Which of the following features of Microsoft Word automatically moves to the next line while reaching the end of current line? Carriage return None of these Enter Word wrap Carriage return None of these Enter Word wrap ANSWER DOWNLOAD EXAMIANS APP
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