Electrical Machines We can apply source transformation to voltage source when a resistance is connected to it in 14 HP. 10 HP. 15 HP. 13 HP. 14 HP. 10 HP. 15 HP. 13 HP. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A flat compound generator is obtained from compound generator by connecting a variable resistor in parallel with the series field in series with the series field in parallel with the shunt field in series with the shunt field in parallel with the series field in series with the series field in parallel with the shunt field in series with the shunt field ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The no load and full load speed of DC mototr are 1400 rpm and 1200 rpm respectively. What is the percentage speed regulation of the motor? 16.67%. 18.25%. 15.30%. 14.28%. 16.67%. 18.25%. 15.30%. 14.28%. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A commutator in DC machines can 1. provide half-wave rectification 2. Provide full-wave rectification 3. convert ac to dc 4. Convert dc to ac 5. provide controlled full-wave rectification From these, the correct answer is 2, 3, 4, 5 1, 2, 3 2, 3 ,5 2, 3, 4 2, 3, 4, 5 1, 2, 3 2, 3 ,5 2, 3, 4 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a single phase capacitor start induction motor which of the following is valid? Rotation can be changed by interchanging supply terminals. Rotation can be changed by reversing main winding terminals. None of these. Direction of rotation cannot be changed. Rotation can be changed by interchanging supply terminals. Rotation can be changed by reversing main winding terminals. None of these. Direction of rotation cannot be changed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For which of the following loads, armature reaction is magnetizing in nature? None of these pure inductive load pure resistive load pure capacitive load None of these pure inductive load pure resistive load pure capacitive load ANSWER DOWNLOAD EXAMIANS APP
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