Electrical Machines A DC generator beyond critical resistance will generate maximum power. maximum current. maximum voltage. no voltage. maximum power. maximum current. maximum voltage. no voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The reduced air gap results in an increase breaking torque. cost of operation. power factor. starting torque. breaking torque. cost of operation. power factor. starting torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A cumulatively compounded dc motor delivers rated load power at rated speed. If the series field is short-circuited, then Ia remains constant but ωm increase both armature current Ia and speed ωm increase both decrese Ia increases and ωm decreses Ia remains constant but ωm increase both armature current Ia and speed ωm increase both decrese Ia increases and ωm decreses ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The squirrel cage induction motors are provided with blades in order to balance the rotor dynamically. none of these. eliminate noise. facilitate cooling of rotor. balance the rotor dynamically. none of these. eliminate noise. facilitate cooling of rotor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Series generators are used in which of the following applications? Used as boosters in dc distribution or transmission. All of these Air crafts. Arc welding. Used as boosters in dc distribution or transmission. All of these Air crafts. Arc welding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Secondary winding of an auto transformer is also called tertiary winding. damping winding. common winding. compensating winding. tertiary winding. damping winding. common winding. compensating winding. ANSWER DOWNLOAD EXAMIANS APP
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