Electrical Machines The output power of any electrical motor is taken from the Armature. Coupling mounted on the shaft. Field. Motor frame. Armature. Coupling mounted on the shaft. Field. Motor frame. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the highest possible speed of turbo alternators? 3000 rpm 1500 rpm 4000 rpm 1000 rpm 3000 rpm 1500 rpm 4000 rpm 1000 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In the V curve shown in figure below for a synchronous motor, the parameter of Y and X coordinates are, respectively Armature current and torque. Power factor and field current. Armature current and field current. Torque and field current. Armature current and torque. Power factor and field current. Armature current and field current. Torque and field current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A short circuit test on a transformer gives copper loss at any load. copper loss at half load. copper loss at over load. copper loss at full load. copper loss at any load. copper loss at half load. copper loss at over load. copper loss at full load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, armature reaction refers to what? Effect of armature flux on the main field flux. None of these Effect of armature flux on the load. Effect of field flux on the armature flux. Effect of armature flux on the main field flux. None of these Effect of armature flux on the load. Effect of field flux on the armature flux. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A simple method of increasing the voltage of a DC generator is to increase the number of turns in field coil. increase the number of turns in armature coil. increase the speed of shaft rotation. increase the source frequency. increase the number of turns in field coil. increase the number of turns in armature coil. increase the speed of shaft rotation. increase the source frequency. ANSWER DOWNLOAD EXAMIANS APP
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