Electrical Machines In DC generators, the residual magnetism is of the order of 2.5 %. 15 %. 20 %. 10 %. 2.5 %. 15 %. 20 %. 10 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Speed of DC motor can be controlled by varying applied voltage. its flux oer pole. all of these. resistance of armature culture. applied voltage. its flux oer pole. all of these. resistance of armature culture. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A transformer core is made up of a silicon steel laminations which has maximum flux density 1 Tesla. If it was cold rolled grain oriented its flux density increases to 1.6 Tesla. What is the saving in core size or area due to cold rolled grain oriented process? 40% 60% 38% 68% 40% 60% 38% 68% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Diverters are used only in either of these shunt motors series motors None of these either of these shunt motors series motors None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two generators G1 and G2 are to be operated in parallel to deliver a total current of 60 A. Generator one has a terminal voltage of 280 V on no load and 240 V when supplying 40 A current. Similarly the second generator has a voltage of 300 V when on no load and 240 V when supplying of 50 A of current. The output voltage of each generator will be 240 V. 271.7 V. 256.4 V. 238.2 V. 240 V. 271.7 V. 256.4 V. 238.2 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When maximum starting torque is obtained, rotor power is ANSWER DOWNLOAD EXAMIANS APP
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