Electrical Machines When the rotor of a 3 phase induction motor is blocked then the slip is 1. 0.7. 0.3. 0.54. 1. 0.7. 0.3. 0.54. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum allowable tan - delta (tanδ) of dielectric dispassion factor of power transformer insulating oil is generally taken as 1 at 90°C. 3 at 90°C. 0.5 at 90°C. 2 at 90°C. 1 at 90°C. 3 at 90°C. 0.5 at 90°C. 2 at 90°C. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The use of higher flux density in the transformer design reduces the weigh per KVA None of these increases the weigh per KVA has no relation with the weight of transformer reduces the weigh per KVA None of these increases the weigh per KVA has no relation with the weight of transformer ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC series motor the speed is ______________ proportional to the armature current. none of these. directly. inversely. has no relation. none of these. directly. inversely. has no relation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Direct axis reactance is defined as the ratio of Vmin to Imin Vmax to Imin Vmax to Imax Vmin to Imax Vmin to Imin Vmax to Imin Vmax to Imax Vmin to Imax ANSWER DOWNLOAD EXAMIANS APP
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. 3Fmax. Fmax. (1/2)Fmax. (3/2)Fmax. 3Fmax. Fmax. (1/2)Fmax. ANSWER DOWNLOAD EXAMIANS APP
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