Electrical Machines In which of the following speed control of DC motor the speed obtained is below than the rated speed? Armature voltage control. Armature circuit resistance control. Field resistance control. Any of above. Armature voltage control. Armature circuit resistance control. Field resistance control. Any of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a specific open-circuit voltage of a DC generator, the short-circuit electric current will be maximum when it is differentially compounded. separately excited. shunt connected. cumulatively compounded. differentially compounded. separately excited. shunt connected. cumulatively compounded. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dummy coils are used for reducing armature reaction. increasing efficiency. All of these mechanical balancing. reducing armature reaction. increasing efficiency. All of these mechanical balancing. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following windings are necessary in case of all dc machines? lap winding wave winding closed winding open type winding lap winding wave winding closed winding open type winding ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Stability of a synchronous motor ---------- with the increase in excitation. remains unaffected any of the above decreases increases remains unaffected any of the above decreases increases ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - φ induction motor can also be referred to as a transformer. shunt motor. asynchronous motor. repulsion motor. transformer. shunt motor. asynchronous motor. repulsion motor. ANSWER DOWNLOAD EXAMIANS APP
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