Mechanical Engineering : Steam Boilers QUESTIONS AND ANSWERS :: part5 : 11 to 15
Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
11.Which type of boiler can meet rapid changes of load |
| vertical fire tube type |
| horizontal fire tube type |
| horizontal water tube type |
| vertical water tube type |
| forced circulation type. |
12.The fusible plug in small boilers is located |
| in the drum |
| in the fire tubes |
| above steam dome |
| over the combustion chamber |
| at the inlet of chimney. |
13.Thermal efficiency of well maintained boiler will be of the order |
| 20% |
| 40% |
| 50% |
| 75% |
| 90%. |
14.Thermal efficiency of a thermal power plant is of the order of |
| 15% |
| 20% |
| 30% |
| 45% |
| opt 5 |
15.In a recuperative air preheater, the heat is transferred |
| from a metal wall from one medium to another |
| from heating an itermediate material and then heating the air from this material |
| by direct mixing , |
| heat is transferred by bleeding some gases from furnace |
| none of the above. |
More Steam Boilers QUESTIONS AND ANSWERS available in next pages
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