Electrical Machines If input of a transformer is square wave the output will be square wave. pulsed wave. sine wave. triangular wave. square wave. pulsed wave. sine wave. triangular wave. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The torque angle, in a synchronous motor, is the angle between the rotating stator flux and rotor flux. the supply voltage and the back emf. None of these magnetizing electric current and back emf. the rotating stator flux and rotor flux. the supply voltage and the back emf. None of these magnetizing electric current and back emf. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A synchorous generator connected to an infinite bus is over excited. Considering only the reactive power from the point view of the system the machine acts as an inductor. A capacitor. None of these. A resistor. an inductor. A capacitor. None of these. A resistor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The heat transfer by convection in a transformer least depends on color of the paint. air velocity. temperature difference. surface area. color of the paint. air velocity. temperature difference. surface area. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the no-voltage release in a DC motor starter fails to operate on failure of supply, on resumption of supply the motor will start automatically without trouble. develop very low starting torque. not start automatically. get damaged. start automatically without trouble. develop very low starting torque. not start automatically. get damaged. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC compound motor the field regulator is provided to control the field flux. demagnetize the field partially. control the armature flux. limit the armature current. control the field flux. demagnetize the field partially. control the armature flux. limit the armature current. ANSWER DOWNLOAD EXAMIANS APP
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