Question: Maximum thermal efficiency of boiler may be about __________ percent.
[A].10
25
65
90
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
Chemical Engineering
In salt bath furnace, heat is transferred to the charge mainly by
Question: In salt bath furnace, heat is transferred to the charge mainly by
[A].conduction
convection
radiation
none of these
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
If fuel and air are mixed ahead of the burner, it is called a/an __________ burner.
Question: If fuel and air are mixed ahead of the burner, it is called a/an __________ burner.
[A].premix
outside mixing type
rotary
diffusion
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Heat transfer takes place through a liquid medium surrounding the submerged material under heating, in case of a/an
Question: Heat transfer takes place through a liquid medium surrounding the submerged material under heating, in case of a/an
[A].blast furnace.
steam boiler.
salt bath furnace.
annealing furnace.
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
An example of recuperative furnace is the
Question: An example of recuperative furnace is the
[A].soaking pit
open hearth furnace
coke ovens
none of these
[A].
[B].
[C].
[D].
Answer: Option A
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.
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
underfired
covered
recirculating
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
An example of indirectly heated furnace is the
Question: An example of indirectly heated furnace is the
[A].soaking pit
muffle furnace
reheating furnace
none of these
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
Hearth furnaces are not used for
Question: Hearth furnaces are not used for
[A].roasting
melting
reheating
none of these
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
An example of shaft furnace is the
Question: An example of shaft furnace is the
[A].L.D. converter
glass melting tank
blast furnace
soaking pit
[A].
[B].
[C].
[D].
Answer: Option C
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
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
CO2 : 7.42, CO : 1.86, O2 : 4.64, N2:86.02
CO2 : 6.39, CO : 1.60, O2 : 3.99, H2O:25.96, N2:72.06
CO2 : 7.60, CO : 1.90, O2 : 4.75, N2 : 85.74
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.