Electrical Machines Star - delta method of starting of motor is not possible in case of single phase induction motor. low horse power motor. high torque motor. high speed motor. single phase induction motor. low horse power motor. high torque motor. high speed motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature of DC machine is made of non-ferrous material. insulating material. silicon steel. conducting material. non-ferrous material. insulating material. silicon steel. conducting material. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The leakage reactance of a 3-phase alternator is determined by performing open circuit and zero power factor tests. zero power factor and slip tests. short circuit and slip tests. open circuit and short circuit tests. open circuit and zero power factor tests. zero power factor and slip tests. short circuit and slip tests. open circuit and short circuit tests. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Consider the following statements regarding the speed control of dc motors : 1. ward-leonard method is suitable forconstant-torque drives 2. Ward-leonard method is suitable for constant-power drives 3. field-control method facilitates speed control below base speed 4. Armature-resistance control method is more efficient than ward-leanard method 5. Field-control method is suitable for constant-torque drives 6. Armature-resistance control method is suitable for constant-torque drives From these, the correct answer is 1, 3, 5 1, 2, 5 1, 4, 6 1, 2, 6 1, 3, 5 1, 2, 5 1, 4, 6 1, 2, 6 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Stray losses in transformer occurs in paper insulation in transformers. transformer insulating oil. steel core. winding conductors and steel structures of transformer. paper insulation in transformers. transformer insulating oil. steel core. winding conductors and steel structures of transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The use of higher flux density in the transformer design reduces the weigh per KVA None of these has no relation with the weight of transformer increases the weigh per KVA reduces the weigh per KVA None of these has no relation with the weight of transformer increases the weigh per KVA ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS