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Question: The calorific value of producer gas is around __________ kcal/Nm3
[A].

1300

[B].

500

[C].

4500

[D].

9000

Answer: Option A

Explanation:

No answer description available for this question.

Question: The calorific value of L.D. converter gas is about __________ Kcal/Nm3 .
[A].

1800

[B].

800

[C].

4500

[D].

10000

Answer: Option A

Explanation:

No answer description available for this question.

Question: L.D. converter gas (produced in steel plant) comprises mainly of
[A].

CO (upto 65%) & CO2

[B].

CO2 & H2

[C].

CO & O2

[D].

CO2 & O2

Answer: Option A

Explanation:

No answer description available for this question.

Question: Blast furnace gas compared to coke oven gas has
[A].

lower ignition temperature.

[B].

narrower limit of inflammability.

[C].

higher calorific value.

[D].

lower theoretical flame temperature.

Answer: Option D

Explanation:

No answer description available for this question.

Question: Largest constituent of coke oven gas is
[A].

N2

[B].

H2

[C].

CH4

[D].

CO2

Answer: Option B

Explanation:

No answer description available for this question.

Question: Largest constituent of blast furnace gas is
[A].

N2

[B].

CO

[C].

CO2

[D].

H2

Answer: Option A

Explanation:

No answer description available for this question.

Question: Yield of blast furnace gas is about __________ Nm3 /ton of pig iron.
[A].

300

[B].

2000

[C].

5000

[D].

10000

Answer: Option B

Explanation:

No answer description available for this question.

Question: With increase in the oxygen content of the coal, its __________ decreases.
[A].

calorific value

[B].

caking power

[C].

both (a) & (b)

[D].

neither (a) nor (b)

Answer: Option C

Explanation:

No answer description available for this question.

Question: Low temperature oxidation and spontaneous combustion of freshly mined coal is accentuated, if
[A].

it contains large amount of volatile matter.

[B].

it is stored in tall heaps.

[C].

smaller fines are stored in large quantity.

[D].

all (a), (b) and (c).

Answer: Option D

Explanation:

No answer description available for this question.