Top 80+ Solved Electric Energy Generation Utilization and Conservation MCQ Questions Answer
Q. Which of the following causes the corrosion of terminals and clamps?
a. spilled electrolyte
b. increase in temperature
c. decrease in pressure
d. due to high current
Q. Grounding transformer is used where neutral .........available
a. is
b. is not
c. either a or b
d. . none of the above
Q. In equipment grounding, the enclosure is connected to ...........wire
a. ground
b. neutral
c. phase
d. either a or b
Q. Earthing is necessary to give protection against
a. danger of electric shock
b. voltage fluctuation
c. overloading
d. high temperature of the conductors
Q. In case of earth fault, the underground neutral system lead to arcing ground
a. does
b. does not
c. any of above
d. none of above
Q. The advantage of neutral earthing
a. safety of personnel
b. reduction of earth fault current
c. elimination of arcing ground
d. none of the above
Q. In a substation the equipment used to limit short circuit current level is
a. series reactor
b. coupling capacitor
c. lightening switch
d. isolator.
Q. In a star connected system without neutral grounding, zero sequence currents are
a. zero
b. phaser sum of phase currents
c. same as rms value of phase currents
d. same as peak value of phase currents
Q. Grounding transformer is used where neutral available
a. is
b. is not
c. any of above
d. none of above