Electrical Machines The 3 - Φ induction motor with rotor circuit open will run normally. not run. get over heated. make noise. run normally. not run. get over heated. make noise. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The slot edges in a DC machine are made of Fibre. Silicon steel. Cast iron. Mild steel. Fibre. Silicon steel. Cast iron. Mild steel. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The flux is maximum in the following part of a DC motor: under trailing pole tip. under the interpole. pole core. under leading pole tip. under trailing pole tip. under the interpole. pole core. under leading pole tip. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The current drawn by the armature of DC motor is directly proportional to The torque required. The voltage across the terminals. None of above. The speed of motor. The torque required. The voltage across the terminals. None of above. The speed of motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the handle of a three point starter goes to back to OFF position, it may be due to all of these. zero or very low voltage supply. high filed circuit resistance. over load. all of these. zero or very low voltage supply. high filed circuit resistance. over load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If an additional resistance is connected in series with a DC motor operating at rated speed, the speed of the motor will Remain unaltered. Reduce. Increase. Oscillate around the normal speed. Remain unaltered. Reduce. Increase. Oscillate around the normal speed. ANSWER DOWNLOAD EXAMIANS APP