Electrical Engineering : Electric Traction QUESTIONS AND ANSWERS :: part3 : 1 to 5
Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
1.Which of the following methods is used to control speed of 25 kV, 50 Hz single phase traction ? |
| Reduced current method |
| Tap changing control of transformer |
| Series parallel operation of motors |
| All of the above |
2.Which of the following happens in Kando system ? |
| Three phase A.C. is converted into D.C. |
| Single phase A.C. is converted into D.C. |
| Single phase supply is converted into three phase system |
| None of the above |
3.For 25 kV single phase system power supply frequency is |
| 60 Hz |
| 50 Hz |
| 25 Hz |
| 16 Hz |
4.Suri transmission is |
| electrical-pneumatic |
| mechanical-electrical |
| hydro-mechanical |
| hydro-pneumatic |
5.Energy consumption in propelling the train is required for which of the following? |
| Work against the resistance to motion |
| Work against gravity while moving up the gradient |
| Acceleration |
| All of the above |
More Electric Traction QUESTIONS AND ANSWERS available in next pages
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