Electrical Machines Commonly used starters of cage motor is star delta. both A and B. None of these DOL. star delta. both A and B. None of these DOL. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is not a necessary condition to be satisfied for synchronising an incoming alternator to an already operating alternator? same frequency same prime mover speed same voltage magnitude same phase sequence same frequency same prime mover speed same voltage magnitude same phase sequence ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The direction of rotation of a 3 - Φ induction motor can be reversed by transposing all the three leads from the supply. disconnecting any one phase. transposing any two leads from supply. transposing any two leads from slip rings. transposing all the three leads from the supply. disconnecting any one phase. transposing any two leads from supply. transposing any two leads from slip rings. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines On what factors the speed of dc motor depends? Applied voltage. All of these. Field flux. Armature current Ia. Applied voltage. All of these. Field flux. Armature current Ia. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The power factor of squirrel cage induction motor is low at rated load only both A and B low at light loads only low at heavy loads only low at rated load only both A and B low at light loads only low at heavy loads only ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In field flux method speed control of DC Motor is constant torque drive below the base speed. constant power drive above base speed. constant hp drive below the base speed. constant torque drive above the base speed. constant torque drive below the base speed. constant power drive above base speed. constant hp drive below the base speed. constant torque drive above the base speed. ANSWER DOWNLOAD EXAMIANS APP
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