Electrical Machines The flux involved in the emf equation of a transformer has maximum value. rms value. total value. average value. maximum value. rms value. total value. average value. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum power developed in a cylindrical synchronous machine depends on both 1and 2 load angle synchronous reactance excitation both 1and 2 load angle synchronous reactance excitation ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A separately-excited DC generator, running at rated speed, has 6 volts across its armature terminals with no field current. When field winding is excited with one ampere, the voltage builds up to 250 V at no load. In case field current is reduced to zero, with the speed remaining unaltered, the armature terminal voltage would be more than 6 V zero 6 V less than 6 V more than 6 V zero 6 V less than 6 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Voltage across the open circuited field termninals of a synchorous machine under slip test is AC of supply frequency. DC of slip frequency. A modulated supply frequency AC voltage with slip frequency envelop. DC. AC of supply frequency. DC of slip frequency. A modulated supply frequency AC voltage with slip frequency envelop. DC. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Ward-Leonard system for controlling the speed of a DC motor is used where Very fine speed control over the whole range from zero to normal speed is required. The speed in both the direction is required. The accuracy in speed control is required. All of above. Very fine speed control over the whole range from zero to normal speed is required. The speed in both the direction is required. The accuracy in speed control is required. All of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Eb/V ratio of a DC motor is an indication of Effiency. Speed regulation. Starting torque. Running Torque. Effiency. Speed regulation. Starting torque. Running Torque. ANSWER DOWNLOAD EXAMIANS APP
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