Electrical Machines When the rotor of a 3 phase induction motor is blocked then the slip is 0.7. 0.3. 1. 0.54. 0.7. 0.3. 1. 0.54. 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. high filed circuit resistance. over load. zero or very low voltage supply. all of these. high filed circuit resistance. over load. zero or very low voltage supply. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Variation in speed by ward-Leonard control of DC motors occurs due to variation in Field excitaion. Armature voltage. Armature current. Supply voltage. Field excitaion. Armature voltage. Armature current. Supply voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If a DC motor is connected across the AC supply it will Run at lower speed. Burn. Run at normal speed. Not run. Run at lower speed. Burn. Run at normal speed. Not run. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Under which of the following conditions hunting of synchronous motor is likely to occur ? Small and constant load. Periodic variation of load. Over-excitation. Over-loading for long period. Small and constant load. Periodic variation of load. Over-excitation. Over-loading for long period. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In salient pole synchronous machine, if direct axis reactance and quadrature axis reactance is equal, then power developed due to reluctance is any of the above infinite value zero maximum any of the above infinite value zero maximum ANSWER DOWNLOAD EXAMIANS APP
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