Question: One kg of carbon for theoretically complete combustion requires __________ kg of air.
[A].11.5
0.5
23
12
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Chemical Engineering
Oxygen required for theoretically complete combustion of 1 Nm3 methane is __________ Nm3.
Question: Oxygen required for theoretically complete combustion of 1 Nm3 methane is __________ Nm3.
[A].2
4
6
1
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
With increase in C/H ratio of a fuel, the dew point of flue gases
Question: With increase in C/H ratio of a fuel, the dew point of flue gases
[A].increases
decreases
remains same
may increase or decrease ; depends on the type of fuel
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
If CO2 is not fully absorbed by the KOH solution meant for its absorption in the orsat apparatus, it will appear as
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
CO
N2
SO2
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
KOH solution used in orsat apparatus absorbs
Question: KOH solution used in orsat apparatus absorbs
[A].CO2
SO2
both (a) & (b)
neither (a) nor (b)
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
Calorific value of
Question: Calorific value of
[A].light paraffinic fuel oils is equal to that of equivalent olefins.
n-paraffin is lower than that of iso-paraffins of the same compounds.
light paraffinic fuel oils is higher than that of equivalent olefins.
light paraffinic fuel oils is lower than that of equivalent olefins.
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
As the C/H ratio of the fuel increases, the amount of CO2 formed on combustion __________ for the same percentage of excess air.
Question: As the C/H ratio of the fuel increases, the amount of CO2 formed on combustion __________ for the same percentage of excess air.
[A].decreases
increases
remains same
may increase or decrease depending on the type of fuel
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
Moisture loss is determined by the
Question: Moisture loss is determined by the
[A].humidity of combustion air.
moisture content of fuel.
both (a) and (b).
the water formed by combustion reaction.
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
A sooty flame can be made non-luminous by
Question: A sooty flame can be made non-luminous by
[A].admitting more gas.
shutting gas supply.
admitting more air.
shutting air supply.
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
Coal tar (produced by high temperature carbonisation) is the main source of
Question: Coal tar (produced by high temperature carbonisation) is the main source of
[A].aromatic compounds
alphatic compounds
paraffins
olefins
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.