Electrical Machines When the rotor of a 3 phase induction motor is blocked then the slip is 0.3. 0.54. 0.7. 1. 0.3. 0.54. 0.7. 1. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Damper winding is used to decrease the load current. both 1 and 2. increase the load current. suppress the hunting. decrease the load current. both 1 and 2. increase the load current. suppress the hunting. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Essential conditions for two DC generators are connecting for parallel operation is/are terminal voltage should be same. polarities should be same. rating of generators should be same. both A and B. terminal voltage should be same. polarities should be same. rating of generators should be same. both A and B. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a step down transformer which one of the following statements is true? Number of secondary turns is more than that of primary. Secondary current is less than primary current. Number of secondary turns is less than primary turns. Secondary power is less than primary power. Number of secondary turns is more than that of primary. Secondary current is less than primary current. Number of secondary turns is less than primary turns. Secondary power is less than primary power. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The output power of any electrical motor is taken from the Coupling mounted on the shaft. Motor frame. Armature. Field. Coupling mounted on the shaft. Motor frame. Armature. Field. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following machine is invariably provided with forced ventilation? Fractional horse power high speed motor. 50 MW generator in a power plant. Fractional horse power slow speed motor. Hermetically sealed motor of refrigerator. Fractional horse power high speed motor. 50 MW generator in a power plant. Fractional horse power slow speed motor. Hermetically sealed motor of refrigerator. ANSWER DOWNLOAD EXAMIANS APP
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