101. Laminations of core are generally made of
102. In D.C. generators on no-load, the air gap flux distribution in space is
103. A sinusoidal voltage of 5 Hz is applied to the field of a shunt generator. The armature voltage wave
104. The essential condition for parallel operation of two D.C. generators is that they have
105. Which of the following could be lamina proximately the thickness of laminations of a D.C. machine?
106. The rapid wear of brushes takes place due to
107. In case of D.C. machine winding, number of commutator segments is equal to
108. The insulating material used between the commutator segments is normally
109. The bearings used to support the rotor shafts are generally
110. If a self excited D.C. generator after being installed, fails to build up on its first trial run, the first thing to do is to
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