Electrical Machines An ideal DC generated is one that has _____________ voltage regulation. negative. zero. positive. low. negative. zero. positive. low. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The low voltage winding of a 400/230 V single phase 50 Hz transformer is to be connected to keep the magnetization current at the same level in both the cases the voltage at 25 Hz should be 115 V 460 V 65 V 230 V 115 V 460 V 65 V 230 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The synchronous reactance( Xs) is the reactance due to leakage flux combined reactance due to armature reaction and leakage flux reactance due to armature reaction of the machine reactance either due to armature reaction or leakage flux reactance due to leakage flux combined reactance due to armature reaction and leakage flux reactance due to armature reaction of the machine reactance either due to armature reaction or leakage flux ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The direction of rotation of a 3 - Φ induction motor can be reversed by transposing any two leads from slip rings. transposing all the three leads from the supply. transposing any two leads from supply. disconnecting any one phase. transposing any two leads from slip rings. transposing all the three leads from the supply. transposing any two leads from supply. disconnecting any one phase. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the load current and the flux of a DC motor are held constant and voltage applied across its armature is increased by 5%, the speed of the motor will remain unchanged. depend on other factors. increase by 5 %. reduce by 5 %. remain unchanged. depend on other factors. increase by 5 %. reduce by 5 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Find the developed torque DC Series Motor having armature resistance of 0.2 Ω and taking armature current of 60 A is connected to 250 V supply. Considered brush drop of 1 V each. 234.76 N-m. 133.22 N-m 266.20 N-m. cant be determined. 234.76 N-m. 133.22 N-m 266.20 N-m. cant be determined. ANSWER DOWNLOAD EXAMIANS APP
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