Electrical Machines The armature of DC motor is laminated to reduce the hysteresis loss. to reduce the eddy current loss. to reduce the inductor. to reduce the mass. to reduce the hysteresis loss. to reduce the eddy current loss. to reduce the inductor. to reduce the mass. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines At stand still condition the value of slip is 1 0 finite value infinite value 1 0 finite value infinite value ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If B is flux density, l the length of the conductor and v the velocity of the conductor, then emf is given by Blv. Blv2. Bl2v2. Bl2v. Blv. Blv2. Bl2v2. Bl2v. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Tap changer is generally provided in current transformer. earthing transformer. power transformer. voltage transformer. current transformer. earthing transformer. power transformer. voltage transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If in a sub – station there is one 132 / 33 kV transformer whose secondary is connected with primary of one 33 / 11 kV transformer, the total transformation ratio of the sub – station will be, 3. 4. 12. 7. 3. 4. 12. 7. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The condition for maximum running torque is 0.707 lagging 0.5 lagging R = S.X unity zero 0.707 lagging 0.5 lagging R = S.X unity zero ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS