Electrical Machines Universal motors are used in All of these traction food processing cranes All of these traction food processing cranes ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Find the developed torque DC Series Motor having armature resistance of 0.2 Ω and taking armature current of 60 A is connected to 250 V supply. Considered brush drop of 1 V each. cant be determined. 234.76 N-m. 133.22 N-m 266.20 N-m. cant be determined. 234.76 N-m. 133.22 N-m 266.20 N-m. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If starter is not used with large DC motor for starting, it will damage the armature and commutator. draw a starting current many times its rated full load current. all of above. provide execessive voltage drop in line. damage the armature and commutator. draw a starting current many times its rated full load current. all of above. provide execessive voltage drop in line. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Lamination of transformer core is made of wrought iron. cast steel. silicon steel. cast iron. wrought iron. cast steel. silicon steel. cast iron. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the mechanical power developed by a DC series motor is maximum? Back emf is equal to half the applied voltage. None of above. Back emf is equal to zero. Back emf is equal to applied voltage. Back emf is equal to half the applied voltage. None of above. Back emf is equal to zero. Back emf is equal to applied voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Consider a separately excited DC motor. If the field current is increased while the armature terminal voltage is held constant, then speed of the motor will increase. none of these. Decrease.d remains same. increase. none of these. Decrease.d remains same. ANSWER DOWNLOAD EXAMIANS APP
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