Electrical Machines Hopkinson test is conducted under which of the following condition? any of the above half load full load no load any of the above half load full load no load ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For small value armature current Ia the torque developed by a DC series motor is proportional to 1/Ia. Ia2. √Ia. Ia. 1/Ia. Ia2. √Ia. Ia. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines High inrush of current during a starting of DC motor can efficiently be restricted to a safer value by increasing the _________________ resistance. both A and B armature circuit shunt field none of above both A and B armature circuit shunt field none of above ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A Shunt generator running at 1000 rpm has generated emf of 100 V. If the speed increases to 1200 rpm, the generated emf will be nearly 240 V 140 V 120 V 175 V 240 V 140 V 120 V 175 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In which of the following generators negative voltage regulation can occur? series generators both B and C shunt generator over compound generator series generators both B and C shunt generator over compound generator ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines It is an advisable to use auto transformer if the transformation ratio is Greater than 1. 0.25. 0.5. near to 1. Greater than 1. 0.25. 0.5. near to 1. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS