Electrical Machines The direction of rotation of a DC compound motor can be reversed by interchanging armature or field connections. shunt field connections. series field connections. armature connections. armature or field connections. shunt field connections. series field connections. armature connections. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Rotating magnetic field is produced in an induction motor because of stator winding. rotor winding. either stator winding or rotor winding. None of these stator winding. rotor winding. either stator winding or rotor winding. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In which transformer, the tertiary winding is used? Star - star Delta - star Star - delta Delta - delta Star - star Delta - star Star - delta Delta - delta ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The breakdown torque of a synchronous motor varies as 1/V applied voltage V V² 1/V² 1/V applied voltage V V² 1/V² ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the increase in the torque expressed as percentage of initial torque, if current drawn by the dc series motor is increased from 10A to 11A? 21% 10% 41% 11% 21% 10% 41% 11% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 3 - Φ wound rotor induction motor the short circuit gear is used to short circuit the None of these rotor at slip rings. stator phases of the motor. starting resistance in the starter. None of these rotor at slip rings. stator phases of the motor. starting resistance in the starter. ANSWER DOWNLOAD EXAMIANS APP
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