Electrical Machines In DC machine torque depends on which of the following? both A and B armature current (I) speed flux (φ) both A and B armature current (I) speed flux (φ) ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The current drawn by a DC motor at the time of starting is Normal. Very high. Zero. Very low. Normal. Very high. Zero. Very low. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines High inrush of current during a starting of DC motor can efficiently be restricted to a safer value by increasing the _________________ resistance. armature circuit none of above shunt field both A and B armature circuit none of above shunt field both A and B ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The emf induced in a conductor rotating in a bipolar field is AC. DC. None of these both of above. AC. DC. None of these both of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following bearings and their uses are correct neither 1 nor 2 both A and B roller bearings → large machines ball bearings → small machines neither 1 nor 2 both A and B roller bearings → large machines ball bearings → small machines ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature flux is.............with respect to main field flux or main field poles? stationary rotates opposite direction None of these rotates same direction stationary rotates opposite direction None of these rotates same direction ANSWER DOWNLOAD EXAMIANS APP
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