Electrical Machines DC machine is a conduction machine. convection machine. both are correct. none of above are correct. conduction machine. convection machine. both are correct. none of above are correct. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The reduced air gap results in an increase power factor. breaking torque. starting torque. cost of operation. power factor. breaking torque. starting torque. cost of operation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine shape of armature MMF wave is? Triangular and directed towards main pole. Saddle shape. Peaky in nature. Triangular and directed towards brush axis. Triangular and directed towards main pole. Saddle shape. Peaky in nature. Triangular and directed towards brush axis. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The material used for commutator brushes is mostly copper. carbon. cast iron. mica. copper. carbon. cast iron. mica. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction depends on which of the following? magnitude of load current None of these both 1 and 2 power factor of load magnitude of load current None of these both 1 and 2 power factor of load ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two synchronous generators operating in parallel 200 MW and 400 MW respectively. The drooping characteristics of their governors are identical as 4% from no load to full load. Consider the governors operating at 50Hz on no load. What is the operating frequency, if the load is 600 MW? 45 HZ 48.5 Hz 48 Hz 50 Hz 45 HZ 48.5 Hz 48 Hz 50 Hz ANSWER DOWNLOAD EXAMIANS APP
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