MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Energy Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
WHAT_HAPPENS_DUE_TO_HIGH_TEMPERATURE_OF_FEEDS_WATER_IN_THE_ECONOMIZER??$ |
| A. | Fuel consumption increases |
| B. | Fuel mechanical efficiency increases |
| C. | Fuel consumption decreases |
| D. | Fuel mechanical efficiency decreases |
| Answer» D. Fuel mechanical efficiency decreases | |
| 2. |
What is the function Air heater in the boiler?$ |
| A. | Preheat the air before entering the boiler |
| B. | Recover the heat from flue gas |
| C. | Heating of economizer tubes |
| D. | Reheat the gas coming out of economizer |
| Answer» C. Heating of economizer tubes | |
| 3. |
What is the function of superheater in the boiler?$ |
| A. | Increase the temperature of steam |
| B. | Reheat the steam |
| C. | Superheat the feed water |
| D. | To heat the fuel gas |
| Answer» B. Reheat the steam | |
| 4. |
Rotary pumps are driven by _________ |
| A. | electric motors |
| B. | batteries |
| C. | diesel engines |
| D. | biogas fuel |
| Answer» B. batteries | |
| 5. |
What is the function of the feed water pump of a boiler? |
| A. | Pump water at high pressure |
| B. | To pump water at lower pressure |
| C. | To pull back the water from boiler |
| D. | To convert steam into water after the boiler process |
| Answer» B. To pump water at lower pressure | |
| 6. |
What does regenerative air preheater consists of? |
| A. | Rotor |
| B. | Skewers |
| C. | Propeller |
| D. | Piston |
| Answer» B. Skewers | |
| 7. |
Tubular air preheater of a boiler is also called as _________ |
| A. | recuperative air preheater |
| B. | elliptical air preheater |
| C. | ovoid air preheater |
| D. | squarish air preheater |
| Answer» B. elliptical air preheater | |
| 8. |
How many types of safety valves are used in boiler in practice? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 9. |
What is the function of safety valves in the boiler? |
| A. | To prevent excessive steam pressure |
| B. | To prevent excessive air pressure |
| C. | To prevent water pressure |
| D. | To prevent from rising temperatures |
| Answer» B. To prevent excessive air pressure | |
| 10. |
What is the function of fusible plug in the boiler? |
| A. | Protect the fire tube |
| B. | To trip on overload |
| C. | To act as a junction switch |
| D. | To maintain pressure |
| Answer» B. To trip on overload | |
| 11. |
What is the function of Blow down valve of a boiler? |
| A. | To remove sludge |
| B. | To build sediments |
| C. | To remove Flue gas |
| D. | To remove ash |
| Answer» B. To build sediments | |
| 12. |
What type valve is a feed check valve of a boiler? |
| A. | One way valve |
| B. | Globe valve |
| C. | Reversible valve |
| D. | Disc check valve |
| Answer» B. Globe valve | |
| 13. |
other than Steam stop valve in the boiler which is the other similar type of valve used? |
| A. | Non-reversible valve |
| B. | Transient valve |
| C. | Reversible valve |
| D. | Junction valve |
| Answer» E. | |
| 14. |
What is the function of pressure gauge in the boiler? |
| A. | To indicate steam pressure |
| B. | To indicate water pressure |
| C. | To indicate Air pressure |
| D. | To indicate Flue gas pressure |
| Answer» B. To indicate water pressure | |
| 15. |
How many level indicators are there in the water level indicator of a boiler? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |