Electrical Machines In a dc machine 72 number of coils are used. Find the number of commutator segments required? 36 72 74 37 36 72 74 37 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Universal motor have which of the following application? Traction. Food mixer. Lift. Domestic pump. Traction. Food mixer. Lift. Domestic pump. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Exciting current of an induction motor is none of these. higher than power transformer. lesser than power transformer. equal as power transformer. none of these. higher than power transformer. lesser than power transformer. equal as power transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole 50 Hz induction motor is running at 1470 rpm. What is the slip value? 0.02 0.04 0.2 0.4 0.02 0.04 0.2 0.4 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A small air gap in poly phase induction motor helps to increase starting torque. reduce chance of crawling. reduce chance of cogging. reduce magnetizing current. increase starting torque. reduce chance of crawling. reduce chance of cogging. reduce magnetizing current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Direction of rotation of DC motor is reversed by Reversing armature connection or field connection. Adding resistance to field circuit. Interchanging armature and field connection. Reversing supply connection. Reversing armature connection or field connection. Adding resistance to field circuit. Interchanging armature and field connection. Reversing supply connection. ANSWER DOWNLOAD EXAMIANS APP
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