Fuels and Combustion-Data Intensity 1 | Multiple Questions and Answers

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Fuels and Combustion-Data Intensity 1 Multiple Questions and Answers.

6.	In flue gas analysis by Orsat’s apparatus, carbon monoxide is absorbed by___?

	A.	Cuprous chloride
	B.	Potassium hydroxide
	C.	Alkaline pyrogallol solution
	D.	None of these

7.	Washing of coal decreases its___?

	A.	Caking index
	B.	Ash content
	C.	Mineral matter content
	D.	None of above

8.	To avoid fire by spontaneous combustion of coal due to its low temperature oxidation, it should be stored in__?

	A.	Shallow and small piles
	B.	Fine sizes without the presence of any lump
	C.	Closed space without any ventilation facility
	D.	Large heaps with small surface to volume ratio

9.	The gas which contributes maximum to the heating value of natural gas is?

	A.	CO
	B.	CO2
	C.	H2
	D.	CH4

10.	Nitrogen in coal____?

	A.	Is present upto 1-2%
	B.	Comes from protein in parent vegetable matter
	C.	Is recovered as ammonia during its carbonisation
	D.	All of above

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