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AGRAWAL EXAM CART BIHAR-FOSSIL FUELS (COAL AND PETROLEUM & ITS REFINING ), ITS COMBUSION AND FLAME-IMPORTANT QUESTIONS
- The lowest temperature at which a substance catches fire is called its...
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- Which of the following has lower ignition temperature?
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- In presence of water, ignition temperature of paper
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- The main constituent of CNG
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- Fire extinguisher is used to:
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- Explosion is the evolution of:
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- The substances which vapourise during burning, give ..........
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- Which is the hottest part in the flame of the candle ?
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- Innermost zone is the:
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- Yellow colour in the flame denotes:
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- Name the fossil fuel used in making food, railway engine and thermal p...
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- Use of .............. in vehicle reduces pollution.
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- Ideal fuel has ---------- calorific value.
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- Calorific value gives the:
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- Calorific value is measured in:
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- Unburnt carbon particles of the fuel cause
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- Incomplete combustion gives :
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- Goldsmith uses..........part of the flame for melting gold.
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- Name the gas obtained during the processing of coal to get coke :
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- Combustion of most fuels releases:
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