1811Electrical EngineeringMedium
In a D.C. machine the current per brush arm should not be more than________?
A100 A
B300 A
C200 A
D400 A
Correct answer
D. 400 A
Explanation
The correct answer is 400 A.
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Study 3,658 Electrical Engineering MCQs with correct answers and explanations.
Correct answer
D. 400 A
Explanation
The correct answer is 400 A.
Correct answer
B. current is in phase with the voltage
Explanation
The correct answer is current is in phase with the voltage.
Correct answer
C. the rectifier will not operate
Explanation
The correct answer is the rectifier will not operate.
Correct answer
D. increase
Explanation
The correct answer is increase.
Correct answer
C. expenditure of energy in liberating electrons from the mercury
Explanation
The correct answer is expenditure of energy in liberating electrons from the mercury.
Correct answer
C. lagging
Explanation
The correct answer is lagging.
Correct answer
C. magnetomotive force
Explanation
The correct answer is magnetomotive force.
Correct answer
D. Improves the flux linkage between the turns of the coil
Explanation
The correct answer is Improves the flux linkage between the turns of the coil.
Correct answer
D. The discharge current decays exponentially
Explanation
The correct answer is The discharge current decays exponentially.
Correct answer
D. It cannot be reversed, ordinarily
Explanation
The correct answer is It cannot be reversed, ordinarily.