MGVCL Exam Paper (30-07-2021 Shift 3) વિષમ' ની સંધી છૂટી પાડો. - કયો વિકલ્પ સાચો છે? વી + સમ વીસ + અમ વિસ્ + અમ વિ + સમ વી + સમ વીસ + અમ વિસ્ + અમ વિ + સમ ANSWER DOWNLOAD EXAMIANS APP
MGVCL Exam Paper (30-07-2021 Shift 3) Murray loop test is performed on a faulty cable 300 m long. At balance, the resistance connected to the faulty core was set at 20 Ω and the resistance of the resistor connected to the sound core was 40 Ω. Calculate the distance of the fault point from the test end. 400 m 100 m 200 m 300 m 400 m 100 m 200 m 300 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)= (20/60)*600= 200 m.
MGVCL Exam Paper (30-07-2021 Shift 3) Which is the function of Operating System? Security All of these Process Management Devices Management Security All of these Process Management Devices Management ANSWER DOWNLOAD EXAMIANS APP
MGVCL Exam Paper (30-07-2021 Shift 3) A 10-pole induction motor is supplied by a 6-pole alternator, which is driven at 1400 rpm. If the motor runs with a slip of 5%, what is its speed? 1425 rpm 798 rpm 1575 rpm 882 rpm 1425 rpm 798 rpm 1575 rpm 882 rpm ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Slip of the induction motor,S = (Ns - Nr)/NsNs = (120*f)/PPoles (P) = 61400 = (120*f)/6f = 70 HzFor P = 10Ns = (120*70)/10= 840 rpmNr = Ns(1 - S)= 840*(1 - 0.05)= 798 rpm
MGVCL Exam Paper (30-07-2021 Shift 3) A 3 pF capacitor is charged by a constant current of 2 pA for six seconds. The voltage across the capacitor at the end of charging will be 6 V 4 V 8 V 2 V 6 V 4 V 8 V 2 V ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Equation know that the charge stored in a capacitor is given as:Q = C*VQ = I*tV = (I*t)/C= (2μ*6)/(3μ)= 4 V
MGVCL Exam Paper (30-07-2021 Shift 3) A rectangular conductor is 1.6 inches wide and 0.25 inch thick. What is its area in square mils? 40000 square mils 400 square mils 4000 square mils 400000 square mils 40000 square mils 400 square mils 4000 square mils 400000 square mils ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1.6 inches = 1.6 inches x 1,000 mils per inch = 1,600 mils0.25 inch = 0.25 inch x 1,000 mils per inch = 250 milsArea = 1,600 x 250 = 400,000 square mils
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