Electrical Machines In case of induction motors the ratio of length to pole pitch for minimum cost, is taken as 2 to 3. 3 to 5. 1.0. 1.5 to 2. 2 to 3. 3 to 5. 1.0. 1.5 to 2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 2 pole lap winding dc machine , the resistance of one conductor is 2Ω and total number of conductors is 100. Find the total resistance 100Ω 200Ω 10Ω 50Ω 100Ω 200Ω 10Ω 50Ω ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a practical synchronous motor the pull out torque will occur when the torque angle is nearly equal to 45°. 0°. 75°. 30°. 45°. 0°. 75°. 30°. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The stator frame in an induction motor is used to hold armature stamping in position. provide return path for the flux. ventilate the armature. protect the whole machine. hold armature stamping in position. provide return path for the flux. ventilate the armature. protect the whole machine. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines No load saturation characteristics are plotted between no load voltage and field current short circuit current and armature current short circuit current and field current no load voltage and armature current no load voltage and field current short circuit current and armature current short circuit current and field current no load voltage and armature current ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC generator will not build up voltage if it has lost residual magnetism. due to wrong direction of rotation. if field resistance is more than critical resistance. any one of above. if it has lost residual magnetism. due to wrong direction of rotation. if field resistance is more than critical resistance. any one of above. ANSWER DOWNLOAD EXAMIANS APP
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