MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Power Plant knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
COMPARING_FIRE_TUBE_AND_WATER_TUBE_BOILERS,_WHICH_BOILER_CAN_PRODUCE_COMPARATIVELY_HIGHER_PRESSURE_STEAM_THAN_ANOTHER_FOR_THE_SAME_CAPACITY??$ |
| A. | fire tube boiler |
| B. | water tube boiler |
| C. | both can produce steam at same pressure for the same capacity |
| D. | none of the mentioned |
| Answer» C. both can produce steam at same pressure for the same capacity | |
| 2. |
WHAT_IS_THE_PURPOSE_OF_USING_ECONOMIZER_IN_THE_BOILER??$ |
| A. | to heat feed water by utilizing heat from exhaust gases |
| B. | to heat feed water by utilizing some heat from superheated steam |
| C. | to superheat steam |
| D. | none of the mentioned |
| Answer» B. to heat feed water by utilizing some heat from superheated steam | |
| 3. |
How is the natural draught produced for exhaust gases? |
| A. | by using fan |
| B. | by using chimney |
| C. | by using gravity |
| D. | none of the mentioned |
| Answer» C. by using gravity | |
| 4. |
The purpose of super heater in a boiler is |
| A. | to increase the temperature of saturated steam with increase in its pressure |
| B. | to increase the temperature of saturated steam without increase in its pressure |
| C. | to increase the temperature of feedwater for better efficiency |
| D. | none of the mentioned |
| Answer» C. to increase the temperature of feedwater for better efficiency | |
| 5. |
The natural draught in the steam generator depends upon |
| A. | the air condition outside the chimney |
| B. | the temperature of exhaust gases |
| C. | both of the mentioned |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 6. |
What is the disadvantage of natural draught? |
| A. | it has less life |
| B. | it has more maintenance cost of cleaning and more capital cost to build the chimney |
| C. | the available draught decreases with increasing outside air temperature |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| 7. |
Which device used to separate condensate from the steam without letting steam escape? |
| A. | condenser |
| B. | steam valve |
| C. | steam trap |
| D. | none of the above |
| Answer» D. none of the above | |
| 8. |
What is the pH value of water permissible for boiler? |
| A. | 0 |
| B. | 7 |
| C. | slightly less than 7 |
| D. | slightly more than 7 |
| Answer» D. slightly more than 7 | |
| 9. |
The formation of scale boiler leads to |
| A. | decrease in efficiency of boiler |
| B. | increase in efficiency of boiler |
| C. | increase in heat transfer |
| D. | decrease in maintenance of boiler |
| Answer» B. increase in efficiency of boiler | |
| 10. |
Which of the following auxiliaries are not used in steam Generators? |
| A. | economiser |
| B. | burner |
| C. | fan |
| D. | stoker |
| Answer» B. burner | |