Electrical Machines A crusher is equipped with DC shunt motor. Slip ring induction motor. Reluctance motor. Synchronous motor. DC shunt motor. Slip ring induction motor. Reluctance motor. Synchronous motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Stray losses in transformer occurs in steel core. paper insulation in transformers. transformer insulating oil. winding conductors and steel structures of transformer. steel core. paper insulation in transformers. transformer insulating oil. winding conductors and steel structures of transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the mechanical power developed by a DC series motor is maximum? Back emf is equal to half the applied voltage. Back emf is equal to zero. Back emf is equal to applied voltage. None of above. Back emf is equal to half the applied voltage. Back emf is equal to zero. Back emf is equal to applied voltage. None of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When R2 is rotor resistance, X2 the rotor reactance at supply frequency and s the slip, then the condition for maximum torque under running condition will be R2 = s2X2. sR2 = X2. R2 = sX2. R2 = s2X2. R2 = s2X2. sR2 = X2. R2 = sX2. R2 = s2X2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If residual magnetism of a shunt generator is destroyed accidentally it may be restored by connecting its shunt field to earth. to a DC source. to an AC source. in reverse. to earth. to a DC source. to an AC source. in reverse. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The total core loss of a 400 V, 50 Hz transformer is 2400W, when it is supplied by 200 V, 25 Hz loss is 800W. Calculate eddy current loss and hysteresis loss? 1600W, 800W 800W, 1600W 1400W, 1000W 1000W , 1400W 1600W, 800W 800W, 1600W 1400W, 1000W 1000W , 1400W ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS