Electrical Machines Tap changer is generally provided in earthing transformer. current transformer. voltage transformer. power transformer. earthing transformer. current transformer. voltage transformer. power transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines which of the following losses are negligible in blocked rotor test? copper loss both A and B mechanical loss iron loss copper loss both A and B mechanical loss iron loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The emf induced in a conductor rotating in a bipolar field is both of above. None of these AC. DC. both of above. None of these AC. DC. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Induction motors have the advantage of simple in construction. less cost. all of below. less maintenance. simple in construction. less cost. all of below. less maintenance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A separately-excited DC generator, running at rated speed, has 6 volts across its armature terminals with no field current. When field winding is excited with one ampere, the voltage builds up to 250 V at no load. In case field current is reduced to zero, with the speed remaining unaltered, the armature terminal voltage would be zero 6 V less than 6 V more than 6 V zero 6 V less than 6 V more than 6 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous motor, damper windings are provided on stator frame. rotor shaft. None of these pole faces. stator frame. rotor shaft. None of these pole faces. ANSWER DOWNLOAD EXAMIANS APP
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