Characteristics of Fuels:
1. Calorific value: When one kilogram of fuel is completely burnt in the presence of pure oxygen is called calorific value of fuel. It is expressed in unit’s kilojoule per gram (kJ/g). Higher the CV of a fuel the more heat it produces when burned.
2. Efficiency: When a fuel is burnt, some of the energy produced is given off as waste heat which cannot be used for cooking or other purposes. This is the effects of a fuel. It is expressed as percentage.
3. Ignition Temperature: The minimum temperature at which a fuel catches fire is termed as its ignition temperature. Those substances having low ignition temperature catches fire easily.
Some important characteristics of an ideal/good fuel: No fuel is considered as ideal. Yet CNG is the best fuel among all others.
Some fuels based on these characteristics:
1. Hydrogen as fuel: it is the best fuel and has highest calorific value. It is only used as a fuel because it is highly inflammable.
2. Methane and LPG as fuels: Both have high calorific values they burn with a smokeless fire and do not cause pollution.
3. Petrol and diesel as fuels: Both are used in auto mobiles their main disadvantage is their limited availability and other is that their combustion releases harmful gases.
The _________________ temperature at which a fuel catches fire is termed as its ignition temperature. | |||
Right Option : A | |||
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What should be the important characteristics of fuel ? | |||
Right Option : D | |||
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Why does gun powder catches fire even in absence of air? | |||
Right Option : A | |||
View Explanation |
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Usually we see institutes offering objective based learning which usually causes a lag behind in subjective examinations which is the pattern followed by schools. I think it is really a work of planning to make us students grab the advantages of modes of examination, Objective Subjective and Onli...
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In terms of methodology I want to say that institute provides expert guidence and results oriented monitering supplements by requsite study material along with regular tests which help the students to improve their education skills.The techniques of providing education helps the students to asses...
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