Electrical Machines In a 6 pole DC machine, 90 mechanical degrees correspond to which of the following electrical degree? 180. 270. 45. 30. 180. 270. 45. 30. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following alternators contain large number of poles? Hydro alternators. None of these Turbo alternators. Aame in both alternators. Hydro alternators. None of these Turbo alternators. Aame in both alternators. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which machine is used for battery charging? DC series generator. DC shunt generator. Compounded DC generator. None of these. DC series generator. DC shunt generator. Compounded DC generator. None of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A compound dc generator is delivering full load current at a terminal voltage of 230 V. Its series-field winding gets short circuited. If its terminal voltage 1. becomes more than 230 V, it is overcompounded generator 2. becomes more than 230 V, it is differentially compounded generator 3. becomes less than 230 V, it is overcompounded generator 4. becomes less than 230 V, it is differentially compounded generator 5. becomes less than 230 V, it is level compounded generator From these, the correct answer is 2, 3, 5 1, 4, 5 1, 4 2,3 2, 3, 5 1, 4, 5 1, 4 2,3 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines 3rd harmonics are eliminated in induction motor by using V connection. star connection. zig - zag connection. delta connection. V connection. star connection. zig - zag connection. delta connection. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In IM the rotor lamination can be ________________ than stator laminations. rotor can not have any laminations. thicker. sipper. thinner. rotor can not have any laminations. thicker. sipper. thinner. ANSWER DOWNLOAD EXAMIANS APP
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