Electrical Machines If a DC Series motor is connected across an AC supply it will run at lower speed. not run. burn. run at normal speed. run at lower speed. not run. burn. run at normal speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When flux density is constant in a transformer, hysteresis loss varies as f V² f² V f V² f² V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Crawling in an induction motor is due to time harmonics in supply. space harmonics produced by winding currents. insufficient starting torque. slip ring rotor. time harmonics in supply. space harmonics produced by winding currents. insufficient starting torque. slip ring rotor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A large series motor is never started without some mechanical on it because otherwise it will Open fuse or circuit breaker. Produce sparking at brushes. Develop excessive speed and damage itself. Draw too much current. Open fuse or circuit breaker. Produce sparking at brushes. Develop excessive speed and damage itself. Draw too much current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A triangular mmf wave is produced in the air gap of an electric machine. Such wave is produced by rotor of an synchronous machine. rotor of a dc machine. stator of a induction machine. stator of a dc machine. rotor of an synchronous machine. rotor of a dc machine. stator of a induction machine. stator of a dc machine. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor winding for a 3-phase slip-ring induction motor having delta-connected stator must be connected in None of these delta or star according to need. delta. star. None of these delta or star according to need. delta. star. ANSWER DOWNLOAD EXAMIANS APP
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