Electrical Machines For higher values of armature, the speed of a DC series motor is Inversely proportional to armature current. Constant. Proportional to the square of armature current. Proportional to armature current. Inversely proportional to armature current. Constant. Proportional to the square of armature current. Proportional to armature current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If iron loss and full load copper loss of any transformer are denoted by Pi and Pc, then the load corresponding to maximum efficiency is given by (Pi / Pc)1.6 × full Load. (Pi / Pc)2 × full Load. (Pi / Pc) × full Load. (Pi / Pc)0.5 × Full Load. (Pi / Pc)1.6 × full Load. (Pi / Pc)2 × full Load. (Pi / Pc) × full Load. (Pi / Pc)0.5 × Full Load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What will be the eddy current loss if the supply frequency of a transformer becomes double? Eight times. Doubled. Four times. Remains same. Eight times. Doubled. Four times. Remains same. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Exciting current of an induction motor is none of these. lesser than power transformer. equal as power transformer. higher than power transformer. none of these. lesser than power transformer. equal as power transformer. higher than power transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which type of motors uses slip rings? DC Shunt Motor Induction motors Synchronous motors Both Synchronous and Induction motor DC Shunt Motor Induction motors Synchronous motors Both Synchronous and Induction motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature resistance control method is also called as-----------? constant voltage control constant power control constant torque control constant current control constant voltage control constant power control constant torque control constant current control ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS