Mechanical Engineering : Steam Boilers QUESTIONS AND ANSWERS :: part8 : 6 to 10
Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
6.Maximum energy loss in a boiler occurs due to |
| unburnt carbon in ash |
| incomplete combustion |
| ash content |
| flue gases |
| radiation losses. |
7.The relative heat absorption for successively added equal areas of boiler convection heating surfaces |
| increases |
| decreases |
| remains unaffected |
| first increases and then decreases |
| first decreases and then increases. |
8.Overtire burning is the phenomenon of |
| supply of excess, air |
| supply of excess coal |
| burning CO and unburnt in upper zone of furnace by supplying more air |
| fuel bed firing |
| none of the above. |
9.Feed water conditioning in thermal power plants in done to |
| reduce hardness and for removal of solids |
| increase efficiency-of thermal power plant |
| increase heat transfer rate |
| increase steam parameters |
| all of the above. |
10.Natural water circulation, by convection in water tube boilers, with increase in pressure of boiler |
| increases |
| decreases |
| remains unaffected |
| first increases and then decreases |
| first decreases and then increases. |
More Steam Boilers QUESTIONS AND ANSWERS available in next pages
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