Electrical Machines In a synchronous motor electromagnetic power varies directly as square of applied voltage None of these directly as applied voltage inversely as applied voltage directly as square of applied voltage None of these directly as applied voltage inversely as applied voltage ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole lap wound dc generator has 4 brushes, if one of the brush is damaged, what will be the change in V, I and P ratings V/2, I and P/2 V/2, I/2 and P/4 V, I and P V, I/2 and P/2 V/2, I and P/2 V/2, I/2 and P/4 V, I and P V, I/2 and P/2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Ward-Leonard control is basically a ___________ control method. Armature voltage control. Armature resistance control. Field control. Field diverter control. Armature voltage control. Armature resistance control. Field control. Field diverter control. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When a synchronous motor is running at synchronous speed, the damper winding produces both 1 and 2. no torque. damping torqe. eddy current torque. both 1 and 2. no torque. damping torqe. eddy current torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Consider the following statements : Interpoles in dc machines 1. reducearmature reaction effects in the interpolar region 2. have the same dimension as main polls 3. have their windings connected in series with the armature 4. have same number of turns as the armature 5. have the polarity same as that of the main pole ahead in a motor From these, the correct statements are 1, 2, 3 and 5 1, 2 and 3 1 and 3 1, 3 and 5 1, 2, 3 and 5 1, 2 and 3 1 and 3 1, 3 and 5 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC machine is a conduction machine. convection machine. none of above are correct. both are correct. conduction machine. convection machine. none of above are correct. both are correct. ANSWER DOWNLOAD EXAMIANS APP
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