Electrical Machines Copper brushes in DC machine are used where low voltage and high currents are involved. in both of above cases. None of these where high voltage and low current. where low voltage and high currents are involved. in both of above cases. None of these where high voltage and low current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dynamic braking is employed to brake both 1 and 2 non reversing drive reversing drive None of these both 1 and 2 non reversing drive reversing drive None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A differentially compound motor under high-over-load conditions will behave like a / an shunt motor. series motor. AC synchronous motor. cummulative compound motor. shunt motor. series motor. AC synchronous motor. cummulative compound motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole 50 Hz 1-phase induction motor is running at 1470 rpm. Find the forward and backward slips? 0.04, 0.96 0.02, 0.98 0.02, 1.98 0.04, 1.96 0.04, 0.96 0.02, 0.98 0.02, 1.98 0.04, 1.96 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4-pole DC generator runs at 1500 rpm. The frequency of current in the armature winding is: 25 Hz. 100 Hz. 50 Hz. Zero Hz. 25 Hz. 100 Hz. 50 Hz. Zero Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following DC Motor uses 4-point starter? DC shunt motor with armature resistance. DC shunt motor with field weaking control. DC compound motor. DC series motor. DC shunt motor with armature resistance. DC shunt motor with field weaking control. DC compound motor. DC series motor. ANSWER DOWNLOAD EXAMIANS APP
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