Combustion And Flame QUESTIONS AND ANSWERS :: part6 : 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.The type of combustion in which heat, light and sound is produced, is ………….. |
| Slow Combustion |
| Spontaneous Combustion |
| Incomplete Combustion |
| Rapid explosion Combustion |
2.Water is used to extinguish fire because it …………….. |
| Lowers the ignition temperature of the burning substance |
| Raises the ignition temperature of the burning substance |
| Cools the burning substance to a temperature below its ignition temperature |
| Conducts heat |
3.Which of the following you will choose for extinguishing fire? |
| Dry powder type extinguisher |
| Soda acid extinguisher |
| Liquid carbon dioxide extinguisher |
| A spray of water |
4.Which of the following is not the attribute of a good fuel? |
| Low calorific value |
| Cheep and easily available |
| Moderate rate of combustion |
| Safe to handle |
5.In which zone of a candle, no combustion take place? |
| inner |
| middle |
| outer |
| all the three zone |
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