Electrical Machines DC shunt motors are suitable for Centrifugal pumps All of this. Blowers and fans. Lathes. Centrifugal pumps All of this. Blowers and fans. Lathes. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A delta/star transformer is connected in parallel to a star/delta transformer. The turn ratio former is x times latter, the x is 1/√3 √3 3 1/3 1/√3 √3 3 1/3 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators, the cause of rapid brush wear may be any of above. rough commutator surface. imperfect contact. severe sparking. any of above. rough commutator surface. imperfect contact. severe sparking. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Field divertor method of speed control of a DC series motor gives speed above rated one due to reduction of Armature current. None of above. Field current. Line current. Armature current. None of above. Field current. Line current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Direction of rotation of DC motor is reversed by Reversing supply connection. Adding resistance to field circuit. Reversing armature connection or field connection. Interchanging armature and field connection. Reversing supply connection. Adding resistance to field circuit. Reversing armature connection or field connection. Interchanging armature and field connection. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor having 8 poles runs at 727.5 rpm. If the supply frequency is 50Hz, the emf in the rotor will have a frequency of 48.5Hz 1.5Hz 51.5Hz 2.5Hz 48.5Hz 1.5Hz 51.5Hz 2.5Hz ANSWER DOWNLOAD EXAMIANS APP
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