Caking index of coal blend used for blast furnace coke making is about_________________?

Question: Dust content in raw blast furnace gas is about __________ gm/Nm3 , hence it is cleaned to the dust level of about < 10 mg /Nm3 before use.
[A].

15-30

[B].

1-2

[C].

70-100

[D].

150-200

Answer: Option A

Explanation:

No answer description available for this question.

Question: Assam coals suffers mainly from the disadvantage of high __________ content.
[A].

ash

[B].

volatile matter

[C].

sulphur (4-6%)

[D].

moisture

Answer: Option C

Explanation:

No answer description available for this question.

Question: During combustion of a gaseous fuel, the presence of a non-luminous flame is an indication of the
[A].

incomplete combustion.

[B].

complete combustion.

[C].

high oxygen in flue gas.

[D].

none of these.

Answer: Option B

Explanation:

No answer description available for this question.

Question: If CO2 is not fully absorbed by the KOH solution meant for its absorption in the orsat apparatus, it will appear as
[A].

O2

[B].

CO

[C].

N2

[D].

SO2

Answer: Option D

Explanation:

No answer description available for this question.

Question: Calorific value of
[A].

light paraffinic fuel oils is equal to that of equivalent olefins.

[B].

n-paraffin is lower than that of iso-paraffins of the same compounds.

[C].

light paraffinic fuel oils is higher than that of equivalent olefins.

[D].

light paraffinic fuel oils is lower than that of equivalent olefins.

Answer: Option C

Explanation:

No answer description available for this question.