Electrical Machines In a DC Shunt Motor if the load current increases keeping the terminal voltage constant, then flux will any of the above. decrease. increase. remain constant. any of the above. decrease. increase. remain constant. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The type of DC motor generally used for shears and punches is Differential compound motor. Shunt motor. Cummulative compound motor. Series motor. Differential compound motor. Shunt motor. Cummulative compound motor. Series motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A dc shunt motor runs at a no-load speed of 1140 rpm. At full load, armature reaction weakens the main flux by 5% whereas the armature circuit voltage drops by 10%. The motor full-load speed in rpm is 1080 1000 1200 1203 1080 1000 1200 1203 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Copper brushes in DC machine are used where high voltage and low current. where low voltage and high currents are involved. None of these in both of above cases. where high voltage and low current. where low voltage and high currents are involved. None of these in both of above cases. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The function of field regulator in a DC compound motor is to vary the armature resistance. none of above. control field current. limit the armature current. vary the armature resistance. none of above. control field current. limit the armature current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The no load current in a transformer lags the applied voltage by 0°. about 115°. 90°. about 75°. 0°. about 115°. 90°. about 75°. ANSWER DOWNLOAD EXAMIANS APP
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