Transformers In a transformer the resistance between its primary and secondary is Zero Infinite 1000 ohms 1 ohm Zero Infinite 1000 ohms 1 ohm ANSWER DOWNLOAD EXAMIANS APP
Transformers What kVA rating is required for a transformer that must handle a maximum load current of 8 A with a secondary voltage of 2 kV? 0.25 kVA 16 kVA 8 kVA 4 kVA 0.25 kVA 16 kVA 8 kVA 4 kVA ANSWER DOWNLOAD EXAMIANS APP
Transformers What is the approximate efficiency of large transformers? 85% 75% 95 % 65% 85% 75% 95 % 65% ANSWER DOWNLOAD EXAMIANS APP
Transformers The all day efficiency of a transformer is also called its Current efficiency Energy efficiency Power efficiency None of the listed here Current efficiency Energy efficiency Power efficiency None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following transformer should never have the secondary open circuited while the primary is energised? Current transformer Power transformer Auto transformer Potential transformer Current transformer Power transformer Auto transformer Potential transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers Transformer having ratings less than 5kVA are generally ______ None of the listed here Water cooled Natural air cooled Oil cooled None of the listed here Water cooled Natural air cooled Oil cooled ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS