Electrical Machines The current drawn by a DC motor at the time of starting is Very low. Normal. Zero. Very high. Very low. Normal. Zero. Very high. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, lap winding is used in where greater load is connected. where constant speed is required. high current and low voltage applications. high voltage and low current applications. where greater load is connected. where constant speed is required. high current and low voltage applications. high voltage and low current applications. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For satisfactory parallel operation of two transformers which of the following conditions is most essential, polarities of all transformers must be same. voltage ratio of all transformers must be same. percentage impedance of all transformers must be same. MVA rating of all transformer inversely proportional to impedance. polarities of all transformers must be same. voltage ratio of all transformers must be same. percentage impedance of all transformers must be same. MVA rating of all transformer inversely proportional to impedance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If a shunt generator delivers 100 A at 200 V, and the resistances of the shunt field and armature are 100 ohms and 0.01 ohms respectively, the generator emf will be parallel. any one of the connection. series. no resistance is connected. parallel. any one of the connection. series. no resistance is connected. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The direction of rotation of a 3 - Φ induction motor can be reversed by transposing all the three leads from the supply. transposing any two leads from slip rings. disconnecting any one phase. transposing any two leads from supply. transposing all the three leads from the supply. transposing any two leads from slip rings. disconnecting any one phase. transposing any two leads from supply. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The stator frame in an induction motor is used to protect the whole machine. ventilate the armature. hold armature stamping in position. provide return path for the flux. protect the whole machine. ventilate the armature. hold armature stamping in position. provide return path for the flux. ANSWER DOWNLOAD EXAMIANS APP
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