Electrical Machines Which of the following DC Motor requires 3 point starter? Shunt motor as well as compound motors. Shunt, compound and series motor. Series motor. Shunt motor. Shunt motor as well as compound motors. Shunt, compound and series motor. Series motor. Shunt motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A commutator in DC machines can 1. provide half-wave rectification 2. Provide full-wave rectification 3. convert ac to dc 4. Convert dc to ac 5. provide controlled full-wave rectification From these, the correct answer is 2, 3 ,5 2, 3, 4, 5 1, 2, 3 2, 3, 4 2, 3 ,5 2, 3, 4, 5 1, 2, 3 2, 3, 4 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc motors, under leading pole tips flux density will--------? None of these either increase or decrease increase decrease None of these either increase or decrease increase decrease ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Sparkless commutation can be achieved by employing compensating winding. any one or more of the above methods. high resistance carbon brushes. inter poles. compensating winding. any one or more of the above methods. high resistance carbon brushes. inter poles. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Commonly used starters of cage motor is None of these DOL. star delta. both A and B. None of these DOL. star delta. both A and B. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When Flemings right hand rule to find the direction of induced emf, the thumb points towards direction of motion of the conductor. direction of induced emf. opposite to the direction of motion of the conductor. direction of flux. direction of motion of the conductor. direction of induced emf. opposite to the direction of motion of the conductor. direction of flux. ANSWER DOWNLOAD EXAMIANS APP
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