Electrical Machines The direction of rotation of conductor of a DC motor can be determined by Fleming's right hand rule. Fleming's left hand rule. Lenz's law. Ampere law. Fleming's right hand rule. Fleming's left hand rule. Lenz's law. Ampere law. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the speed of stator rotating magnetic field with respect to rotor rotating magnetic field? Synchronous speed Slip speed None of these Zero Synchronous speed Slip speed None of these Zero ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Open circuit test on transformer gives both 1and 2 eddy current loss hysteresis loss copper loss both 1and 2 eddy current loss hysteresis loss copper loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If iron loss and full load copper loss of any transformer are denoted by Pi and Pc, then the load corresponding to maximum efficiency is given by (Pi / Pc) × full Load. (Pi / Pc)0.5 × Full Load. (Pi / Pc)2 × full Load. (Pi / Pc)1.6 × full Load. (Pi / Pc) × full Load. (Pi / Pc)0.5 × Full Load. (Pi / Pc)2 × full Load. (Pi / Pc)1.6 × full Load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For very sensitive and wide speed control, the preferable control method is Armature control. Field control. Ward-Leonard control. Multiple voltage control. Armature control. Field control. Ward-Leonard control. Multiple voltage control. 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 zero or very low voltage supply. all of these. over load. high filed circuit resistance. zero or very low voltage supply. all of these. over load. high filed circuit resistance. ANSWER DOWNLOAD EXAMIANS APP
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