Electrical Machines The principal of starting of 3 - Φ IM is similar to synchronous motor. repulsion motor type starting. capacitor run IM. transformer with short-circuited secondary. synchronous motor. repulsion motor type starting. capacitor run IM. transformer with short-circuited secondary. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a three phase slip-ring induction motor, brushes are connected to external star-connected resistors. 3 - Φ AC supply. DC supply. equalizing coils. external star-connected resistors. 3 - Φ AC supply. DC supply. equalizing coils. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Poles of DC machine are often laminated to dissipate more heat. reduce iron weight. reduce armature reaction. reduce pulsation loss. dissipate more heat. reduce iron weight. reduce armature reaction. reduce pulsation loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum power will be developed when back emf is equal to supply voltage. double the supply voltage. All of these half of the supply voltage. equal to supply voltage. double the supply voltage. All of these half of the supply voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A shunt generator is running at 1000 rpm. If flux is reduced by half, then what is the new speed? 2000. 0. 1000. 500. 2000. 0. 1000. 500. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For which of the following loads, armature reaction is magnetizing in nature? pure capacitive load None of these pure resistive load pure inductive load pure capacitive load None of these pure resistive load pure inductive load ANSWER DOWNLOAD EXAMIANS APP
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