Heat transfer takes place through a liquid medium surrounding the submerged material under heating, in case of a/an

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Question: Heat transfer takes place through a liquid medium surrounding the submerged material under heating, in case of a/an
[A].

blast furnace.

[B].

steam boiler.

[C].

salt bath furnace.

[D].

annealing furnace.

Answer: Option C

Explanation:

No answer description available for this question.

If the flame is produced under the hearth and then sweeps up into the heating chamber, this is called a/an __________ furnace.

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Question: If the flame is produced under the hearth and then sweeps up into the heating chamber, this is called a/an __________ furnace.
[A].

sidefired

[B].

underfired

[C].

covered

[D].

recirculating

Answer: Option B

Explanation:

No answer description available for this question.

A sample of natural gas containing 80% methane (CH4) and rest nitrogen (N2) is burnt with 20% excess air. With 80% of the combustibles producing CO2 and the reminder going to CO, the Orsat analysis in volume percent is

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Question: A sample of natural gas containing 80% methane (CH4) and rest nitrogen (N2) is burnt with 20% excess air. With 80% of the combustibles producing CO2 and the reminder going to CO, the Orsat analysis in volume percent is
[A].

CO2 : 6.26, CO : 1.56, O2 : 3.91, H2O :15.66, N2 : 72.60

[B].

CO2 : 7.42, CO : 1.86, O2 : 4.64, N2:86.02

[C].

CO2 : 6.39, CO : 1.60, O2 : 3.99, H2O:25.96, N2:72.06

[D].

CO2 : 7.60, CO : 1.90, O2 : 4.75, N2 : 85.74

Answer: Option B

Explanation:

No answer description available for this question.