MGVCL Exam Paper (30-07-2021 Shift 1) નીચે પૈકી 'અચરજ'નો પર્યાયી શબ્દ ક્યો છે? રજ વિસ્મય જગત શાશ્વત રજ વિસ્મય જગત શાશ્વત ANSWER DOWNLOAD EXAMIANS APP
MGVCL Exam Paper (30-07-2021 Shift 1) The power factor angle of a purely inductive circuit is 60° 45° 30° 90° 60° 45° 30° 90° ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Power factor for purely inductive circuit is 0 and power factor angle is 90 degree.Power factor for purely capacitive circuit is 0 and power factor angle is 90 degreePower factor for purely resistive circuit is 1 and power factor angle is 0 degree
MGVCL Exam Paper (30-07-2021 Shift 1) Which of the following malicious programs does not replicate automatically? Worm Trojan horse Trap doors Virus Worm Trojan horse Trap doors Virus ANSWER DOWNLOAD EXAMIANS APP
MGVCL Exam Paper (30-07-2021 Shift 1) If a 415 V, 50 Hz, star-connected, three-phase squirrel-cage induction motor is operated from a 415 V, 70 Hz supply, the torque that the motor can now provide while drawing rated current from the supply reduces increases or reduces depending upon the rotor resistance increases remains the same reduces increases or reduces depending upon the rotor resistance increases remains the same ANSWER DOWNLOAD EXAMIANS APP
MGVCL Exam Paper (30-07-2021 Shift 1) An electric potential field is produced in air by point 1 μC and 4 μC located at (-2, 1, 5) and (1, 3, -1) respectively. The energy stored in the field is 12.50 mJ 10.28 mJ 2.57 mJ 5.14 mJ 12.50 mJ 10.28 mJ 2.57 mJ 5.14 mJ 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 0.5 √3 -1 √3-1 1-(√3/2) 0.5 √3 -1 √3-1 1-(√3/2) ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Where,φ is firing angleVoltage ripple for 3-phase bridge rectifier = cos(φ) = Cos(30)= 1/2
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