Electrical Machines A single-phase transformer has its maximum efficiency at 60 percent of full load. At full load copper loss will be more than core loss. equal to core loss. less than core loss. zero. more than core loss. equal to core loss. less than core loss. zero. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole dc generator is running at 1500 rpm the frequency of current in the armature winding is 200Hz. 50Hz. 150Hz. 100Hz. 200Hz. 50Hz. 150Hz. 100Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor of a three phase induction motor has an impedance of 0.4 + j4 ohm per phase at standstill the maximum torque occurs at a slip of _____________. 15 %. 50 %. 25 %. 10 %. 15 %. 50 %. 25 %. 10 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The reduced air gap results in an increase breaking torque. starting torque. cost of operation. power factor. breaking torque. starting torque. cost of operation. power factor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The torque developed in IM is nearly proportional to V2. 1 / V. V. 1 / V2. V2. 1 / V. V. 1 / V2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which type of motors are used for lathes? Cage induction motor. DC shunt motors. Either A or B. Synchronous motor. Cage induction motor. DC shunt motors. Either A or B. Synchronous motor. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS