Combustion And Flame QUESTIONS AND ANSWERS :: part7 : 1 to 5
Following Combustion And Flame Multiple choice objective type questions and answers will help you in many competitive written examinations and inteview 2024 like SSC exams :
1.In which zone of a candle does complete combustion take place? |
| inner |
| middle |
| outer |
| all the three zones |
2.A luminous flame appears …………… |
| Red |
| Yellow |
| Blue |
| Green |
3.Incomplete combustion of a fuel produces ……………… |
| less energy |
| carbon monoxide |
| soot |
| all the above |
4.Which of the following fuels has the highest calorific value? |
| Hydrogen |
| Petrol |
| LPG |
| Natural gas |
5.Which of the following is not a necessary condition of combustion? |
| Presence of combustible substance |
| Attainment of ignition temperature |
| Presence of supporter of combustion |
| Presence of carbon dioxide |
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