MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Power Systems knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Scall formation in boiler tube causes ___________? |
| A. | reduction of heat transfer and overheating of boiler tube |
| B. | corrosion of boiler surface |
| C. | feeling up of steam passage |
| D. | cracks in the ages rivites |
| Answer» B. corrosion of boiler surface | |
| 2. |
Chemical method of treatment is used for treatment of: |
| A. | Diissolve gases |
| B. | Carbonate and carbon dioxide |
| C. | Bacterial impurities |
| D. | Send and suspended materials |
| Answer» C. Bacterial impurities | |
| 3. |
Heat treatment arrangement used to separate or remove deserved gases and impurities from feed water is called the year later. |
| A. | true |
| B. | False |
| Answer» B. False | |
| 4. |
Thermal treatment methods used to remove impurities like: |
| A. | Dissolved carbon dioxide and other gases |
| B. | Solid materials |
| C. | Carbonate |
| D. | Bacterial impurities |
| Answer» B. Solid materials | |
| 5. |
Which method is used in large modern thermal power plants to heat feed water? |
| A. | Open type heatre is used |
| B. | Close type heater is used |
| C. | Steam is directly taken from main turbine and used to heat it feed water |
| D. | Surface type heater is used |
| Answer» D. Surface type heater is used | |
| 6. |
Mechanical method of water treatment is done to _____________ |
| A. | Heat the feed water |
| B. | To remove solid matter and impurities |
| C. | To add some solid materials |
| D. | To remove dissolved gases |
| Answer» C. To add some solid materials | |
| 7. |
Feed water for boiler of thermal power plant is obtained from: |
| A. | Natural sources like river and lake |
| B. | Partly from condensed steam and natural sources |
| C. | Condensed steam and small percentage from natural resources |
| D. | Natural sources and small percentage from condensed steam |
| Answer» D. Natural sources and small percentage from condensed steam | |
| 8. |
Which of the following is not a reason of heating feed water? |
| A. | It improves overall efficiency |
| B. | It removes dissolved impurities |
| C. | It prevents from thermal stress which may cause due to enter of cold water into boiler |
| D. | It produces steam from feed water |
| Answer» E. | |