Electrical Machines In a transformer, the frequency of a voltage at the secondary is any of the above. greater than the primary. equal to primary. less than primary. any of the above. greater than the primary. equal to primary. less than primary. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, the electricity produced in armature is AC. DC. None of these armature is not present in DC generator. AC. DC. None of these armature is not present in DC generator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature mmf of a DC machine has triangular space distribution and rotates at the speed of armature. triangular space distribution and is stationary in space. stepped distribution and rotates at the speed of armature. trapezoidal space distribution and is stationary in space. triangular space distribution and rotates at the speed of armature. triangular space distribution and is stationary in space. stepped distribution and rotates at the speed of armature. trapezoidal space distribution and is stationary in space. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3-phase, 50 Hz, 4 pole induction motor is running at 1440 rpm. Find the rotor efficiency? 94% 92% 95% 96% 94% 92% 95% 96% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Transformer cooling and insulating oil must be of high viscosity. low BDV. low viscosity. low resistivity. high viscosity. low BDV. low viscosity. low resistivity. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the handle of a three point starter goes to back to OFF position, it may be due to over load. high filed circuit resistance. all of these. zero or very low voltage supply. over load. high filed circuit resistance. all of these. zero or very low voltage supply. ANSWER DOWNLOAD EXAMIANS APP
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