Electrical Machines In DC generator, full form of MNA is what? Magnetic no-load axis. Magnetically no-load armature co-ordinate. Magnetic neutral armature co-ordinate. Magnetic neutral axis. Magnetic no-load axis. Magnetically no-load armature co-ordinate. Magnetic neutral armature co-ordinate. Magnetic neutral axis. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When pure inductive load is connected to the alternator, what is the effect of armature reaction? Cross magnetization Demagnetization None of these Magnetization Cross magnetization Demagnetization None of these Magnetization ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators, electric current to the external circuit from armature is given through slip rings. solid connection. none of above. commutator. slip rings. solid connection. none of above. commutator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 240 V DC series motor takes 40 A when giving its rated output at 1500 rpm. Its resistance is 0.3 ohms. The value of resistance which must be added to obtain rated torque at 1000 rpm is 6 ohms. 1.9 ohms. 2.2 ohms. 5.7 ohms. 6 ohms. 1.9 ohms. 2.2 ohms. 5.7 ohms. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If terminal voltage of one 1000 rpm shunt motor is reduced to half the speed of the motor will be 500 rpm 2000 rpm 1000 rpm 250 rpm 500 rpm 2000 rpm 1000 rpm 250 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the mechanical power is developed by a DC motor maximum Back emf is equal to half of applied voltage. back emf is equal to applied voltage. Back emf is equal. None of above. Back emf is equal to half of applied voltage. back emf is equal to applied voltage. Back emf is equal. None of above. ANSWER DOWNLOAD EXAMIANS APP
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