Electrical Machines Commutator pitches of duplex and simplex lap windings are respectively 2 and 2 4 ang 1 4 and 2 2 and 1 2 and 2 4 ang 1 4 and 2 2 and 1 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC series motor must started on no load because it would Draw more current without producing sufficient torque. Run at dangerously high speed. Not develop starting torque. Fail to start without load. Draw more current without producing sufficient torque. Run at dangerously high speed. Not develop starting torque. Fail to start without load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Scott connections are used for any of the above. three phase to single phase transformation. three phase to two phase transformation. single phase to three phase transformation. any of the above. three phase to single phase transformation. three phase to two phase transformation. single phase to three phase transformation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Use of fractional pitch winding results in reduced axial length of the machine. make it stiffer. results in reduced leakage reactance. All of these results in reduced axial length of the machine. make it stiffer. results in reduced leakage reactance. All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Eb/V ratio of a DC motor is an indication of Speed regulation. Effiency. Starting torque. Running Torque. Speed regulation. Effiency. Starting torque. Running Torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For small value armature current Ia the torque developed by a DC series motor is proportional to Ia. 1/Ia. Ia2. √Ia. Ia. 1/Ia. Ia2. √Ia. ANSWER DOWNLOAD EXAMIANS APP
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