1. In which of the following equipment direct current is needed? A. Telephones B. Relays C. Time switches D. All of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
2. Mercury, in arc rectifiers, is chosen for cathode because A. Its ionization potential is relatively low B. Its atomic weight is quite high C. Its boiling point and specific heat are low D. All of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
3. It is the_______of the transformer on which the magnitude of angle of overlap depends. A. resistance B. capacitance C. leakage reactance D. any of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
4. Normally, which of the following is used, when a large-scale conversion from AC. to D.C. power is required? A. Motor-generator set B. Motor converter C. Rotary converter D. Mercury arc rectifier Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
5. Which of the following is the loss within the mercury arc rectifier chamber? A. Voltage drop in arc B. Voltage drop at the anode C. Voltage drop at the cathode D. All of the above Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
