MGVCL Exam Paper (30-07-2021 Shift 1) Which generation of computers used vacuum tubes? Third Generation First Generation Second Generation Fourth Generation Third Generation First Generation Second Generation Fourth Generation ANSWER DOWNLOAD EXAMIANS APP
MGVCL Exam Paper (30-07-2021 Shift 1) Which of the following are the advantages of Aerial Bunched Cables (ABC)? Elimination of theft of energy Reduced height of supports All of these Higher safety and reliability Elimination of theft of energy Reduced height of supports All of these Higher safety and reliability 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) Which of the following is an independent malicious program that spread copies of itself from computer to computer? Trojan horse Virus Worm Trap door Trojan horse Virus Worm Trap door ANSWER DOWNLOAD EXAMIANS APP
MGVCL Exam Paper (30-07-2021 Shift 1) Find the word which is correctly spelt from the given options. Suppresed Ambience Dimnished Benifited Suppresed Ambience Dimnished Benifited ANSWER DOWNLOAD EXAMIANS APP
MGVCL Exam Paper (30-07-2021 Shift 1) Case 1: The PV connected to the DC bus was injecting 20 kW of power constituting of 1 kW of lossCase 2: The same PV is connected to the AC bus constituting to 1.5 kW loss. Find out the change in efficiency from Case 1 to Case 2? 5% decrease 5% increase 2.5% decrease 2.5% increase 5% decrease 5% increase 2.5% decrease 2.5% increase ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In DC microgrid system,Efficiency α 1/PinFor 1 kW loss injecting power is 20 kWFor 1.5 kW loss injecting power will be proportional to 30 kWSo,Efficiency will be reduced 0.025
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