Electrical Machines Number of slip rings in 3-phase synchronous motor will be 0 2 1 3 or 4 0 2 1 3 or 4 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The fall in speed of the DC generator due to increase in load can be corrected by increasing the excitation. reducing the load voltage. cooling the armature. increasing the input to the prime mover. increasing the excitation. reducing the load voltage. cooling the armature. increasing the input to the prime mover. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a given torque, reducing divertor resistance of a DC series motor Increase in speed demanding more armature current. Decrease in speed demanding less armature current. Decrease in speed but armature current remains the same. Increase in speed but armature currnet remains the same. Increase in speed demanding more armature current. Decrease in speed demanding less armature current. Decrease in speed but armature current remains the same. Increase in speed but armature currnet remains the same. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Commutator pitches of duplex and simplex lap windings are respectively 4 and 2 4 ang 1 2 and 1 2 and 2 4 and 2 4 ang 1 2 and 1 2 and 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines 1 KVA, 230 V, 50 Hz, single phase transformer has an eddy current loss of 30 watts. The eddy current loss when the transformer is excited by a dc source of same voltage will be 30 W zero watt less than 30 W more than 30 W 30 W zero watt less than 30 W more than 30 W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 250 V DC generator in run at rated speed with no excitation. The open circuit voltage will be zero. very small, say about 2 or 3 V. about 100 V. 250 V. zero. very small, say about 2 or 3 V. about 100 V. 250 V. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS