Electrical Machines The no load current in a transformer lags the applied voltage by about 115°. about 75°. 0°. 90°. about 115°. about 75°. 0°. 90°. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A single-phase transformer has its maximum efficiency at 60 percent of full load. At full load copper loss will be more than core loss. less than core loss. zero. equal to core loss. more than core loss. less than core loss. zero. equal to core loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An ideal synchronous motor has no starting torque because relative velocity between the stator and rotor mmf’s is zero. rotor winding is highly reactive. rotor is made up of salient poles. relative velocity between stator and rotor mmf’s is not zero. relative velocity between the stator and rotor mmf’s is zero. rotor winding is highly reactive. rotor is made up of salient poles. relative velocity between stator and rotor mmf’s is not zero. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The 3 - Φ induction motors are, by a very considerable margin, the most widely used AC motors as they have very good speed regulation. they are capable of operation under range of leading and lagging pf. these are cheaper in cost, simple and rugged in construction. they have maximum efficiency and maximum starting torque. they have very good speed regulation. they are capable of operation under range of leading and lagging pf. these are cheaper in cost, simple and rugged in construction. they have maximum efficiency and maximum starting torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The voltage regulation of a DC generator at full load being zero implies that the generator is shunt connected. series connected. cumulatively compounded. deferentially compounded. shunt connected. series connected. cumulatively compounded. deferentially compounded. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A crusher is equipped with Reluctance motor. Synchronous motor. DC shunt motor. Slip ring induction motor. Reluctance motor. Synchronous motor. DC shunt motor. Slip ring induction motor. ANSWER DOWNLOAD EXAMIANS APP
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