Electrical Machines Armature flux is.............with respect to main field flux or main field poles? rotates opposite direction rotates same direction stationary None of these rotates opposite direction rotates same direction stationary None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum power will be developed when back emf is double the supply voltage. All of these equal to supply voltage. half of the supply voltage. double the supply voltage. All of these equal to supply voltage. half of the supply voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum power developed by a synchronous motor depends on supply voltage and excitation supply voltage and load angle supply voltage, load angle and excitation excitation and load angle supply voltage and excitation supply voltage and load angle supply voltage, load angle and excitation excitation and load angle ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators, electric current to the external circuit from armature is given through slip rings. commutator. solid connection. none of above. slip rings. commutator. solid connection. none of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is/are the necessary conditions for parallel operation of alternators? Frequency should be same Terminal voltage is same Speed of alternators should be same Both 1and 2 Frequency should be same Terminal voltage is same Speed of alternators should be same Both 1and 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following statements are correct ? None of these The leakage reactance of the induction motor should be small. Both 1 and 2. A small value of leakage reactance will increase the maximum power output of motor. None of these The leakage reactance of the induction motor should be small. Both 1 and 2. A small value of leakage reactance will increase the maximum power output of motor. ANSWER DOWNLOAD EXAMIANS APP
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