Electrical Machines To get the speed of DC motor is more than normal without wastage of electrical energy _____________ is used. Rheostatic control. Ward Leonard control. Any of above method. None of above. Rheostatic control. Ward Leonard control. Any of above method. None of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If residual magnetism of a shunt generator is destroyed accidentally it may be restored by connecting its shunt field in reverse. to a DC source. to an AC source. to earth. in reverse. to a DC source. to an AC source. to earth. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An ideal DC generated is one that has _____________ voltage regulation. low. positive. zero. negative. low. positive. zero. negative. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If in DC Shunt Motor the flux is reduced suddenly to zero, then the motor will come to stop. the motor will attain dangerously high speed. the speed of motor will be reduced. the armature current will reduce. the motor will come to stop. the motor will attain dangerously high speed. the speed of motor will be reduced. the armature current will reduce. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators, electric current to the external circuit from armature is given through solid connection. commutator. slip rings. none of above. solid connection. commutator. slip rings. none of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the flux of DC motor approaches zero, its speed will remain unchanged. between zero and infinity. approach zero. aprroach infinity. remain unchanged. between zero and infinity. approach zero. aprroach infinity. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS