Transformers Which motor is preferred for use in mines where explosive gases exist? Shunt motor Air motor Synchronous motor Induction motor Shunt motor Air motor Synchronous motor Induction motor ANSWER DOWNLOAD EXAMIANS APP
Transformers The power transformer is a constant Current device Voltage device Power device Main flux device Current device Voltage device Power device Main flux device ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary winding of a transformer has 110 V ac across it. What is the secondary voltage if the turns ratio is 8? 880 V 8,800 V 88 V 8.8 V 880 V 8,800 V 88 V 8.8 V ANSWER DOWNLOAD EXAMIANS APP
Transformers In case of 3-phase induction motors, plugging means starting the motor on load which is more than the rated load interchanging two supply phases for quick stopping pulling the motor directly on line without a starter locking of rotor due to harmonics starting the motor on load which is more than the rated load interchanging two supply phases for quick stopping pulling the motor directly on line without a starter locking of rotor due to harmonics 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? 7.3 V 88 V 880 V 73 V 7.3 V 88 V 880 V 73 V ANSWER DOWNLOAD EXAMIANS APP
Transformers Natural oil cooling is used for transformers upto a rating of 500 kVA 1000 kVA 3000 kVA 250 kVA 500 kVA 1000 kVA 3000 kVA 250 kVA ANSWER DOWNLOAD EXAMIANS APP
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