Fuels and Combustion - Chemical Engineering Questions and Answers

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The cuprous chloride used in orsat apparatus can absorb

only CO

both CO and CO₂

both CO and O₂

all CO, CO₂, and O₂.

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Coal tar fuels (CTF) as compared to petroleum based fuel oils have higher

calorific value

higher C/H ratio

sulphur content

difference in gross & net calorific value

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Mott and Wheeler test is conducted on coke to find its

reactivity with O₂.

abradability.

phosphorus content.

volatile matter content.

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The pyragallol solution used in orsat apparatus can absorb

only O₂

both O₂ and CO₂

both O₂ and CO

all CO, CO₂, and O₂

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Gray-King Assay and Roga Index of coal is a measure of its

abradability.

grindability.

weathering properties.

caking and swelling properties.

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While the first commercial low temperature coal carbonisation plant is located at Neyveli (in Chennai), the second such plant has been built at

Dankuni (West Bengal)

Dhanbad

Singreni (AP.)

Raniganj

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Low temperature oxidation of coal resulting from bad storage conditions does not decrease its

caking power

calorific value

hydrogen content

oxygen content

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Main use of soft coke is as __________ fuel.

domestic

blastfurnace

foundary

none of these

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Desirable "Micum Index" values of metal-lurical coke are

M₄₀ > 78% and M₁₀ < 10%.

M₄₀ > 4% and M₁₀ < 80%.

M₄₀ > 10% and M₁₀ < 78%.

M₄₀ > 98% and M₁₀ < 2%.