Electrical Machines Fifth harmonic component of the induced voltage in three phase AC generator can be eliminated by using a winding pitch of 4 / 5. 2 / 3. 6 / 7. 5 / 6. 4 / 5. 2 / 3. 6 / 7. 5 / 6. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In which of the following, voltage regulation may be zero or negative lagging power factor unity power factor leading power factor All of these lagging power factor unity power factor leading power factor All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 240 V dc series motor takes 40 A when giving its rated output at 1500 rpm. Its resistance is 0.3 Ω. The value of resistance which must be added to obtain rated torque at 1000 rpm is 1.9 Ω 5.7 Ω 6 Ω 2.2 Ω 1.9 Ω 5.7 Ω 6 Ω 2.2 Ω ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of these types of motor is self starting? None of these. Poly-phase synchronous machine. Poly-phase induction motor. Single phase induction motor. None of these. Poly-phase synchronous machine. Poly-phase induction motor. Single phase induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 10 kW, 230 V, dc shunt machine has four terminals brought out through four leads. For this machine armature winding has thin leads whereas field winding has thick leads both the windings have thick leads armature winding has thick leads whereas field winding has thin leads both the windings have thin leads armature winding has thin leads whereas field winding has thick leads both the windings have thick leads armature winding has thick leads whereas field winding has thin leads both the windings have thin leads ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Under commutation results in sparking the trailing edge of the brush. sparking at the middle of the brush. no sparking. sparking at the leading edge of the brush. sparking the trailing edge of the brush. sparking at the middle of the brush. no sparking. sparking at the leading edge of the brush. ANSWER DOWNLOAD EXAMIANS APP
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