Electrical Machines The slight curvature at the lower end of the OCC of a self excited DC generator is due to residual flux. high speed. magnetic inertia. high field resistance. residual flux. high speed. magnetic inertia. high field resistance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For larger units high torque it is preferred to use Partial motor. Slip induction motor. DC shunt motor. Universal motor. Partial motor. Slip induction motor. DC shunt motor. Universal motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Consider the following statements: To control the speed of a dc shunt motor above the base speed over a reasonably wide range, the motor must 1. have compensating winding 2. have interpole winding 3. be started using a 3-point starter 4. be started using a 4-point starter Of these statements 1 and 3 are correct 1, 2 and 3 are correct 1, 2 and 4 are correct 2 and 4 are correct 1 and 3 are correct 1, 2 and 3 are correct 1, 2 and 4 are correct 2 and 4 are correct ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The starting resistance of DC motor is generally 1000 ohms. Low. Infinitely large. around 500 ohms. 1000 ohms. Low. Infinitely large. around 500 ohms. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor has more stability both motors has same stability salient pole motor cylindrical motor None of these both motors has same stability salient pole motor cylindrical motor None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In which of the following generators negative voltage regulation can occur? over compound generator both B and C shunt generator series generators over compound generator both B and C shunt generator series generators ANSWER DOWNLOAD EXAMIANS APP
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