Electrical Machines In an induction motor, air gap power is 10 Kw and mechanically developed power is 8 Kw. What are the rotor ohmic losses? 1.5KW 3KW 2KW 0.5Kw 1.5KW 3KW 2KW 0.5Kw ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of a DC series motor is Inversely proportional to the armature current. Proportional to the armature current. Proportional to the square of the armature current. Proportional to field current. Inversely proportional to the armature current. Proportional to the armature current. Proportional to the square of the armature current. Proportional to field current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The shaft of induction motor should be flexible. any of these. hollow. stiff. flexible. any of these. hollow. stiff. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Breather is provided in a transformer to absorb moisture of air during breathing. absorb moisture from air entering in transformer. filter the transformer oil. provide cold air in transformer. absorb moisture of air during breathing. absorb moisture from air entering in transformer. filter the transformer oil. provide cold air in transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature of DC machine is made of silicon steel lamination to reduce hysteresis loss only. increase the permeability. reduce both eddy current and hysteresis loss. reduce eddy current loss only. reduce hysteresis loss only. increase the permeability. reduce both eddy current and hysteresis loss. reduce eddy current loss only. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Commutation in a DC machine may be explained as a process by which electric current in a coil is reversed. how alternate flux affects the main field flux. by virtue of which emf is induced in the armature conductors. in which magnetic field is set up. by which electric current in a coil is reversed. how alternate flux affects the main field flux. by virtue of which emf is induced in the armature conductors. in which magnetic field is set up. ANSWER DOWNLOAD EXAMIANS APP
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