Electrical Machines The type of DC motor used for shears and punches is Differential compound motor. Series motor. Shunt motor. Cummulative compound motor. Differential compound motor. Series motor. Shunt motor. Cummulative compound motor. 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. Ia. Ia2. √Ia. 1/Ia. Ia. Ia2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For higher values of armature, the speed of a DC series motor is Proportional to the square of armature current. Inversely proportional to armature current. Proportional to armature current. Constant. Proportional to the square of armature current. Inversely proportional to armature current. Proportional to armature current. Constant. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC series motor is running at rated speed without any additional resistance in series. If an additional resistance is placedin series, the speed of motor Increases. Decreases. Oscillates around the rated speed. Remains unchanged. Increases. Decreases. Oscillates around the rated speed. Remains unchanged. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC series motor must started on no load because it would Fail to start without load. Draw more current without producing sufficient torque. Not develop starting torque. Run at dangerously high speed. Fail to start without load. Draw more current without producing sufficient torque. Not develop starting torque. Run at dangerously high speed. ANSWER DOWNLOAD EXAMIANS APP
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