Electrical Machines In an ideal DC generator the regulation is zero. high. positive. low. zero. high. positive. low. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Universal motors are used in All of these cranes food processing traction All of these cranes food processing traction ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Slip test is performed to determine All of these direct axis reactance and quadrature axis reactance positive sequence reactance and negative sequence reactance slip All of these direct axis reactance and quadrature axis reactance positive sequence reactance and negative sequence reactance slip ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To avoid formation of grooves in the commutator the brushes of opposite polarity should track each other. the brushes of same polarity should track each other. brush position has no effect on the commutator grooving. None of these the brushes of opposite polarity should track each other. the brushes of same polarity should track each other. brush position has no effect on the commutator grooving. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A compound dc generator is delivering full load current at a terminal voltage of 230 V. Its series-field winding gets short circuited. If its terminal voltage 1. becomes more than 230 V, it is overcompounded generator 2. becomes more than 230 V, it is differentially compounded generator 3. becomes less than 230 V, it is overcompounded generator 4. becomes less than 230 V, it is differentially compounded generator 5. becomes less than 230 V, it is level compounded generator From these, the correct answer is 1, 4, 5 1, 4 2,3 2, 3, 5 1, 4, 5 1, 4 2,3 2, 3, 5 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A voltmeter gives 120 oscillations per minute when connected to the rotor of an induction motor. The frequency is 50Hz. The slip of the motor is 25% 4% 2% 5% 25% 4% 2% 5% ANSWER DOWNLOAD EXAMIANS APP
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