Electrical Machines In an induction motor, air gap power is 10 Kw and mechanically developed power is 8 Kw. What are the rotor ohmic losses? 3KW 2KW 0.5Kw 1.5KW 3KW 2KW 0.5Kw 1.5KW ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Slip test is performed to determine direct axis reactance and quadrature axis reactance slip All of these positive sequence reactance and negative sequence reactance direct axis reactance and quadrature axis reactance slip All of these positive sequence reactance and negative sequence reactance ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For 250 volt DC Shunt Motor the armature and field resistance are 0.5 ohm and 250 ohm respectively. What will be the back e.m.f. produced when it takes a load current of 21A. 280 V. 240 V. 220 V. 150 V. 280 V. 240 V. 220 V. 150 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of following components of a DC generator plays vital role for providing direct electric current of a DC generator? Equalizer rings. Commutator. Eye bolt. Dummy coils. Equalizer rings. Commutator. Eye bolt. Dummy coils. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hysteresis loss is proportional to f3. f. f1.5. f2. f3. f. f1.5. f2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Under commutation results in sparking at the middle of the brush. no sparking. sparking the trailing edge of the brush. sparking at the leading edge of the brush. sparking at the middle of the brush. no sparking. sparking the trailing edge of the brush. sparking at the leading edge of the brush. ANSWER DOWNLOAD EXAMIANS APP
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