Electrical Machines What is the reason for stationary armature essential in alternators above 5 KVA? Operating cost is less. Insulation requirement is less. All of these Collecting of large current is simple. Operating cost is less. Insulation requirement is less. All of these Collecting of large current is simple. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of following methods are suitable for the speed control of squirrel cage induction motor? 1. Voltage control. 2. Frequency control. 3. Pole changing method. 4. Rotor resistance control select the correct answer using the codes given below:- 1, 2 and 3. 2 and 4. 2, 3 and 4. 1, 3 and 4. 1, 2 and 3. 2 and 4. 2, 3 and 4. 1, 3 and 4. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is/are the methods to reduce the armature reaction and its effects? pole chamfering All of these pole stacking compensating winding pole chamfering All of these pole stacking compensating winding ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following relation is correct? None of these Xd > Xq. Xd < Xq. Xd = Xq. None of these Xd > Xq. Xd < Xq. Xd = Xq. 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? 40 V. 30 V. 90 V. 60 V. 40 V. 30 V. 90 V. 60 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines It is advisable to start a DC series motor with some load to Limit the flux. Limit the speed. Limit the current. Avoid sparking. Limit the flux. Limit the speed. Limit the current. Avoid sparking. ANSWER DOWNLOAD EXAMIANS APP
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