Electrical Machines Which of the following methods are used to control the speed of DC motors is All of these armature circuit resistance control supply voltage control field current control All of these armature circuit resistance control supply voltage control field current control ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines No load test on induction motor is conducted to find which of the following losses? Rotational loss Stator copper loss Stator core loss All of these Rotational loss Stator copper loss Stator core loss All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC shunt generator builds up 230 V when driven in clockwise direction. In case it is driven in anti clockwise direction, other things remaining unchanged, then the voltage build up is not possible 230 V some what less than 230 V some what more than 230 V not possible 230 V some what less than 230 V some what more than 230 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When two DC series motors are connected in parallel, the resultant speed is more than normal speed. zero. normal speed. less than normal speed. more than normal speed. zero. normal speed. less than normal speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC series generator, the terminal voltage with increase in load will remain nearly constant increase gradually and then stay at rated voltage decrease increase to rated voltage and then may decrease remain nearly constant increase gradually and then stay at rated voltage decrease increase to rated voltage and then may decrease ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The constant losses in transformer is/are both 2 and 3. eddy current loss. copper loss. hysteresis loss. both 2 and 3. eddy current loss. copper loss. hysteresis loss. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS