Transformers What is the approximate efficiency of large transformers? 65% 75% 85% 95 % 65% 75% 85% 95 % ANSWER DOWNLOAD EXAMIANS APP
Transformers The noise produced by a transformer is termed as buzz zoom ringing hum buzz zoom ringing hum ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer with a 110 V primary has a 15:1 turns ratio. The load resistance, RL, is 120 . What is the approximate voltage across the load? 73 V 7.3 V 88 V 880 V 73 V 7.3 V 88 V 880 V ANSWER DOWNLOAD EXAMIANS APP
Transformers The secondary of a current transformer is always short-circuited under operating conditions because it protects the primary circuit avoids core saturation and high voltage induction None of these is safe to human beings protects the primary circuit avoids core saturation and high voltage induction None of these is safe to human beings ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer oil must be free from Odour Sludge Moisture Gases Odour Sludge Moisture Gases ANSWER DOWNLOAD EXAMIANS APP
Transformers Transformer breaths in when load on it increases None of these load on it decreases load remains constant load on it increases None of these load on it decreases load remains constant ANSWER DOWNLOAD EXAMIANS APP
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