Mechanical Engineering : Steam Boilers QUESTIONS AND ANSWERS :: part6 : 1 to 5
Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
1.The function of injector used in small capacity boilers is to |
| create vacuum |
| inject chemical solution in feed pump |
| pump water, similar to boiler feed pump |
| add make up water in the system |
| none of the above. |
2.An economizer in a boiler |
| increases steam pressure |
| increases steam flow |
| decreases fuel consumption |
| decreases steam pressure |
| increases life of boiler. |
3.The economiser is used in boilers to |
| increase thermal efficiency of boiler |
| economise on fuel |
| extract heat from the exhaust flue gases |
| increase flue gas temperature |
| to heat feed water by bled steam. |
4.In regenerative air preheater, the heat is transferred |
| from a metal wall from one medium to another |
| from heating an intermediateanaterial and then heating the air from this material |
| by direct mixing |
| heat is transferred by bleeding some gas from furnace |
| none of the above. |
5.The pressure of reheat steam after passing through reheated compared to inlet condition is |
| more |
| less |
| equal |
| may be more or less depending on capacity of reheated |
| none of the above. |
More Steam Boilers QUESTIONS AND ANSWERS available in next pages
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