Electrical Machines A dc motor with armature resistance of 0.5 ohms connected directly to a 230 Volt supply. If the armature is stationary then the current flowing through armature is 250 A. 340 A. 570 A. 460 A. 250 A. 340 A. 570 A. 460 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In electric locomotive which of the following motor are used ? Separately compound motor. Shunt motor. Synchronous motor. DC series motor. Separately compound motor. Shunt motor. Synchronous motor. DC series motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Eb/V ratio of a DC motor is an indication of Speed regulation. Running Torque. Starting torque. Effiency. Speed regulation. Running Torque. Starting torque. Effiency. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A large series motor is never started without some mechanical on it because otherwise it will Develop excessive speed and damage itself. Open fuse or circuit breaker. Draw too much current. Produce sparking at brushes. Develop excessive speed and damage itself. Open fuse or circuit breaker. Draw too much current. Produce sparking at brushes. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the field winding connection of DC shunt motor is changed motor will become slow. motor will not run. It will run in opposite direction. It will run in same direction. motor will become slow. motor will not run. It will run in opposite direction. It will run in same direction. ANSWER DOWNLOAD EXAMIANS APP
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