Rectifiers and Converters Which of the following AC. motors is usually used in large motor-generator sets? Slip ring induction motor Synchronous motor Squirrel cage induction motor Any of the listed here Slip ring induction motor Synchronous motor Squirrel cage induction motor Any of the listed here ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following is the loss within the mercury arc rectifier chamber? Voltage drop at the cathode All of the listed here Voltage drop in arc Voltage drop at the anode Voltage drop at the cathode All of the listed here Voltage drop in arc Voltage drop at the anode ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters In which of the following applications, direct current is absolutely essential ? Traction Variable speed operation Electrolysis Illumination Traction Variable speed operation Electrolysis Illumination ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Which of the following mercury arc rectifier will deliver least undulating current? Six-phase Two-phase Single-phase Three-phase Six-phase Two-phase Single-phase Three-phase ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Copper oxide rectifier is usually designed not to operate above 55°C 45°C 75°C 30°C 55°C 45°C 75°C 30°C ANSWER DOWNLOAD EXAMIANS APP
Rectifiers and Converters Ageing of a selenium rectifier may change the output voltage by None of the listed here 15 to 20 per cent 25 to 30 per cent 5 to 10 per cent None of the listed here 15 to 20 per cent 25 to 30 per cent 5 to 10 per cent ANSWER DOWNLOAD EXAMIANS APP
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