Question: __________ present in coal is not determined in its ultimate analysis.
[A].Fixed carbon
Total carbon
Hydrogen
Nitrogen.
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Chemical Engineering
Number of macrocomponents present in coal according to Stopes are
Question: Number of macrocomponents present in coal according to Stopes are
[A].four
five
six
two
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Which of the following oil gasification processes is non-catalytic ?
Question: Which of the following oil gasification processes is non-catalytic ?
[A].Semet-Solvay process
Segas process
Onia-Gegi process
Steam reforming of naphtha
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
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.
Question: 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.
[A].70
85
105
145
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
Furnace oil consumption in a furnace for a given duty employing preheated combination air (at 300° ) may be reduced by about __________ percent as compared to the use of atmospheric combustion air.
Question: Furnace oil consumption in a furnace for a given duty employing preheated combination air (at 300° ) may be reduced by about __________ percent as compared to the use of atmospheric combustion air.
[A].5
10
20
35
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
A certain thickness of the coal, if stored unscientifically on soft (katcha) ground having no metallic/concrete flooring gets sunked into the ground, which is termed as the ‘carpet loss’. The carpet loss may be of the order of __________ cms.
Question: A certain thickness of the coal, if stored unscientifically on soft (katcha) ground having no metallic/concrete flooring gets sunked into the ground, which is termed as the ‘carpet loss’. The carpet loss may be of the order of __________ cms.
[A].1 to 2
3 to 4
5 to 15
20 to 40
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
‘Wind loss’ resulting from unscientific storage of coal may be the order of about __________ percent.
Question: ‘Wind loss’ resulting from unscientific storage of coal may be the order of about __________ percent.
[A].2.5
7.5
10.5
14.5
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Gas yield in the Kopper-Totzek coal gasifier is about __________ Nm3/ton coal (ash = 35%).
Question: Gas yield in the Kopper-Totzek coal gasifier is about __________ Nm3/ton coal (ash = 35%).
[A].150
1500
3500
5000
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
With increase in C/H ratio of a fuel, the amount of CO2 formed on its complete combustion
Question: With increase in C/H ratio of a fuel, the amount of CO2 formed on its complete combustion
[A].increases
decreases
remains same
either (a) or (b), depends on other factors
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
‘Mixed gas’ used in steel plants is a mixture of
Question: ‘Mixed gas’ used in steel plants is a mixture of
[A].B.F. gas and coke oven gas.
coke oven gas and converter gas.
coke oven gas and L.P.G.
blast furnace gas and naphtha vapor.
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.