Electrical Machines In a DC Shunt Motor if the load current increases keeping the terminal voltage constant, then flux will remain constant. increase. decrease. any of the above. remain constant. increase. decrease. any of the above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature of DC machine is made of conducting material. insulating material. non-ferrous material. silicon steel. conducting material. insulating material. non-ferrous material. silicon steel. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following alternators contain large number of poles? Hydro alternators. None of these Aame in both alternators. Turbo alternators. Hydro alternators. None of these Aame in both alternators. Turbo alternators. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In 3 - Φ induction motor some times copper bars are placed deep in the rotor to improve power factor. improve efficiency. reduce copper loss. improve starting torque. improve power factor. improve efficiency. reduce copper loss. improve starting torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The field divertor resistance for a DC series motor is of order of 10 Ω 100 Ω 50 Ω 0.1 Ω 10 Ω 100 Ω 50 Ω 0.1 Ω ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An inverted V curve of synchronous motor shows variation of supply voltage and excitation current at constant load. supply voltage and field current at constant excitation. power factor and DC excitation at constant load. power factor and supply voltage during hunting. supply voltage and excitation current at constant load. supply voltage and field current at constant excitation. power factor and DC excitation at constant load. power factor and supply voltage during hunting. ANSWER DOWNLOAD EXAMIANS APP
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