Electrical Machines In DC generator on no-load, the air gap flux distribution in space is sinusoidal. pulsating. triangular. flat topped. sinusoidal. pulsating. triangular. flat topped. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the source voltage of a DC motor is increased, which of the following will decrease? Starting torque, operating speed, full load current. Full load current. Starting torque. Operating speed. Starting torque, operating speed, full load current. Full load current. Starting torque. Operating speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Semi closed slots or totally closed slots are used in induction motors, essentially to improve starting torque increase pull out torque reduce magnetising current and improve power factor decrease starting torque improve starting torque increase pull out torque reduce magnetising current and improve power factor decrease starting torque ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor having 8 poles runs at 727.5 rpm. If the supply frequency is 50Hz, the emf in the rotor will have a frequency of 48.5Hz 2.5Hz 51.5Hz 1.5Hz 48.5Hz 2.5Hz 51.5Hz 1.5Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - Φ slip ring motor has short-circuited rotor. double cage rotor. any of the above. wound rotor. short-circuited rotor. double cage rotor. any of the above. wound rotor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Compensating winding is placed in the main field All of these pole shoe armature core main field All of these pole shoe armature core ANSWER DOWNLOAD EXAMIANS APP
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