Transformers In Ns is the synchronous speed and s the slip, then actual running speed of an induction motor will be (l-s)Ns s.N. (Ns-l)s Ns (l-s)Ns s.N. (Ns-l)s Ns ANSWER DOWNLOAD EXAMIANS APP
Transformers The short circuit test helps us to find Iron loss at no load Cu loss at any desire load None of the listed here Cu loss at no load Iron loss at no load Cu loss at any desire load None of the listed here Cu loss at no load ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following transformer should never have the secondary open circuited while the primary is energised? Potential transformer Power transformer Current transformer Auto transformer Potential transformer Power transformer Current transformer Auto transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers In a step-down transformer, there is a change of 15 A in the load current. This results in change of supply current of more than 15 A 15 A less than 15 A None of these more than 15 A 15 A less than 15 A None of these ANSWER DOWNLOAD EXAMIANS APP
Transformers The open circuit test on a transformer gives _______ Iron losses Friction losses Copper losses Total losses Iron losses Friction losses Copper losses Total losses ANSWER DOWNLOAD EXAMIANS APP
Transformers The iron core is used to ______of the transformer. Reduce core loss Provide tight magnetic coupling Increase the wight None of the listed here Reduce core loss Provide tight magnetic coupling Increase the wight None of the listed here ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS