Electrical Machines The maximum power developed in cylindrical synchronous machine is occurs at a load angle of 0o. Greater than 90o. less than 90o. 90o. 0o. Greater than 90o. less than 90o. 90o. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In escalator which motor is used? DC shunt motor. 1 - φ IM. 3 - φ IM. Universal motor. DC shunt motor. 1 - φ IM. 3 - φ IM. Universal motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Rotating magnetic field is produced in an induction motor because of stator winding. None of these either stator winding or rotor winding. rotor winding. stator winding. None of these either stator winding or rotor winding. rotor winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Pole changing methods are suitable only for ___________ type induction motor. none of these. wound. cage. linear. none of these. wound. cage. linear. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Direct-on-line (DOL) starters are not suitable for starting large DC motors, because the motor may not start. the starting current will be enormously high. the starting torque becomes low. the motor may run away. the motor may not start. the starting current will be enormously high. the starting torque becomes low. the motor may run away. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor of a three phase induction motor has an impedance of 0.4 + j4 ohm per phase at standstill the maximum torque occurs at a slip of _____________. 50 %. 25 %. 10 %. 15 %. 50 %. 25 %. 10 %. 15 %. ANSWER DOWNLOAD EXAMIANS APP
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