Electrical Machines What are slot wedges in a DC machine made of? Mild steel. Cast iron. Silicon steel. Fibre. Mild steel. Cast iron. Silicon steel. Fibre. 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, 7. 4. 3. 12. 7. 4. 3. 12. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor has the highest power factor at full load? Resistance split phase Capacitor start Capacitor run Shaded pole Resistance split phase Capacitor start Capacitor run Shaded pole ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 3-phase induction motor, torque and supply voltage are related as T ∝ 1/V T∝ V² T ∝ V T ∝ 1/V² T ∝ 1/V T∝ V² T ∝ V T ∝ 1/V² ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 1-phase induction motor, if the forward torque slip is S, what is the backward torque slip? S 2-S 1-S 1/S S 2-S 1-S 1/S ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A series generator is connected in series to a feeder having 0.5Ω resistance to boost the voltage. The induced voltage is given by Eg = 0.6Ia, Ra = 0.2Ω and Rs = 0.3Ω. Find the voltage boosted by the generator, when delivering 400 Amp? 60 V. 30 V. 40 V. 90 V. 60 V. 30 V. 40 V. 90 V. ANSWER DOWNLOAD EXAMIANS APP
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