IndiaBIX

Chemical Engineering - Fuels and Combustion

Exercise : Fuels and Combustion - Section 6
26.
Ignition temperature decreases progressively from anthracite to lignite, because
volatile matter content increases.
carbon content decreases.
moisture content increases.
ash content increases.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
Which of the following fuel gases is heavier than air ?
Blast furnace gas
Coke oven gas
Natural gas
Water gas
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
Correct viscosity of furnace oil at the burner tip for proper atomisation is about 25 centistokes. To reduce the viscosity of high viscosity furnace oil (250 centistokes) to the correct atomisation viscosity (i.e. 25 cst), it should be preheated to about____°C.
70
85
105
145
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
Theoretical flame temperature of a fuel is that temperature which is attained, when the fuel is completely burnt 'using theoretical amount of air in
air
oxygen
either (a) or (b)
either (a) or (b) without gain or loss of heat
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
Use of preheated air for combustion of fuel in the furnace, increases the
scale losses of the furnace stock.
calorific value of the fuel.
flame temperature.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers