Electrical Machines Counter emf of a DC motor regulates its armature voltage. exceeds supply voltage aids applied voltage. helps in energy conversion. regulates its armature voltage. exceeds supply voltage aids applied voltage. helps in energy conversion. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines It is an advisable to use auto transformer if the transformation ratio is near to 1. Greater than 1. 0.25. 0.5. near to 1. Greater than 1. 0.25. 0.5. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC series motor is running with a divertor connected across its field winding. If the divertor resistance is reduced then the speed of the motor will increase. decrease. become execessively high. remain unaltered. increase. decrease. become execessively high. remain unaltered. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC generator without commutator is a induction motor DC motor DC generator AC generator induction motor DC motor DC generator AC generator ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous generator, if mechanical input is increased with constant excitation, the load angle will increase decrease None of these either increase or decrease increase decrease None of these either increase or decrease ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two identical loss less series motors connected in series across a dc supply voltage, runs at speed of N1 and N2, then ratio of their output power is 1 : 1. N12 : N22. N1 : N2. none. 1 : 1. N12 : N22. N1 : N2. none. ANSWER DOWNLOAD EXAMIANS APP
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