Fuels and Combustion

431.Which of the following is a primary fuel?

1. Blast furnace coke
2. Gasoline
3. Natural gas
4. Wood charcoal

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432.Which of the following is a rich fuel gas?

1. Producer gas
2. Coal gas from underground gasification of coal
3. Refinery gases
4. None of these

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433.Which of the following is a single stage, fixed bed high pressure coal gasification process?

1. Winkler process
2. Kopper-Totzek process
3. Lurgi Process
4. None of these

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434.Which of the following is called "blue gas”?

1. Coke oven gas
2. Water gas
3. Natural gas
4. Producer gas

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435.Which of the following is coking?

1. Vitrain
2. Fussain
3. Both (A) & (B)
4. Neither (A) nor (B)

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436.Which of the following is not a 'manufactured' fuel?

1. LPG
2. Coal briquettes
3. Tar
4. Colloidal fuels

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437.Which of the following is not a binder for coal briquetting?

1. Coal tar
2. Bitumen
3. Molasses
4. None of these

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438.Which of the following is not a by-product fuel?

1. Sewage gas
2. Refinery gas
3. Producer gas
4. Bagasse

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439.Which of the following is not a by-product recovered in a high temperature coal carbonisation plant?

1. Benzol
2. Pitch-creosote mixture (PCM)
3. Naphthalene
4. Ethylene

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440.Which of the following is not a manufactured fuel?

1. Furnace oil
2. Bagasse
3. Semi-coke
4. Kerosene

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