IndiaBIX

Chemical Engineering - Fuels and Combustion

Exercise : Fuels and Combustion - Section 5
41.
Which of the following is not increased by using preheated combustion air in place of ordinary air at room temperature ?
Calorific value of the fuel.
Flame temperature achieved.
Speed of combustion of fuel.
Heat transfer rate to the stock in the furnace.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
Wood charcoal is obtained by the destructive distillation of wood. It is used in the production of activated carbon, which is not used for the
decolourisation of sugar.
solvent recovery from air and gases
absorption of gases and vapor.
electrode manufacture.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
43.
Washing of coal is done to reduce the
inherent impurities
adhering impurities
mineral matter
both (b) and (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
Volumetric ratio of N2 to O2 in dry atmospheric air is
0.21
3.76
4.76
0.79
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
Coke oven gas burns with an yellowish flame, because of the presence of
CO2
CH4
H2
NH3
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers