Electrical Machines If peak value of phase mmf is F max , then peak value of the rotating field caused by three phase is (3/2)Fmax. (1/2)Fmax. Fmax. 3Fmax. (3/2)Fmax. (1/2)Fmax. Fmax. 3Fmax. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines It is advisable to start a DC series motor with some load to Limit the current. Limit the flux. Avoid sparking. Limit the speed. Limit the current. Limit the flux. Avoid sparking. Limit the speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Equalizer rings are used in which of the followings? lap winding wave winding both 1 and 2 None of these lap winding wave winding both 1 and 2 None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In salient pole synchronous machine, the reluctance power varies as cosδ sinδ sin2δ cos2δ cosδ sinδ sin2δ cos2δ ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines From no load to full load the slip will not change. slightly decrease. slightly increase. None of these not change. slightly decrease. slightly increase. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In which of the following, voltage regulation may be zero or negative lagging power factor unity power factor All of these leading power factor lagging power factor unity power factor All of these leading power factor ANSWER DOWNLOAD EXAMIANS APP
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