Electrical Machines Transformer cooling and insulating oil must be of low resistivity. high viscosity. low viscosity. low BDV. low resistivity. high viscosity. low viscosity. low BDV. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The slot edges in a DC machine are made of Silicon steel. Mild steel. Fibre. Cast iron. Silicon steel. Mild steel. Fibre. Cast iron. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator, the armature reaction results in demagnetization of leading & magnetization of trailing pole tip. magnetization of leading and demagnetization of trailing pole tip. demagnetization of centers of poles. magnetization of inter poles. demagnetization of leading & magnetization of trailing pole tip. magnetization of leading and demagnetization of trailing pole tip. demagnetization of centers of poles. magnetization of inter poles. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed regulation of a DC motor is given as NnL/NfL. (NnL − NfL)/NfL. (NfL − NnL)/NnL. NnL − NfL. NnL/NfL. (NnL − NfL)/NfL. (NfL − NnL)/NnL. NnL − NfL. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer, hysteresis and eddy current losses depend upon supply frequency both 2 and 3 load current maximum flux density supply frequency both 2 and 3 load current maximum flux density ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The direction of rotation of conductor of a DC motor can be determined by Lenz's law. Ampere law. Fleming's left hand rule. Fleming's right hand rule. Lenz's law. Ampere law. Fleming's left hand rule. Fleming's right hand rule. ANSWER DOWNLOAD EXAMIANS APP
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