Calorific value of furnace oil is about _______________ Kcal/kg?
Calorific value of furnace oil is about _______________ Kcal/kg?
A. 10,000
B. 15,000
C. 5,000
D. 20,000
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Percentage of nitrogen in blast furnace gas may be around
Question: Percentage of nitrogen in blast furnace gas may be around
[A].5 [B].
25 [C].
55 [D].
80 Answer: Option C
Explanation:
No answer description available for this question.
Insitu theory and drift theory are related to the____________________?
Insitu theory and drift theory are related to the____________________?A. Origin of petroleum oil
B. Origin of coal
C. Coalification
D. Variation of coal quality with depthGrindability index of a coal is 100. It implies that the ___________________?
Grindability index of a coal is 100. It implies that the ___________________?A. Coal can be pulverised with great difficulty
B. Coal can’t be pulverised
C. Coal can be easily pulverised
D. Power consumption in grinding the coal will be very highLow temperature carbonisation of coal produces_________________?
Low temperature carbonisation of coal produces_________________?A. Metallurgical coke
B. Soft coke
C. Very low calorific value coke oven gas
D. No by-productsWhich of the following is the most important deterrents to an extended use of pulverised coal in boiler firing ?
Which of the following is the most important deterrents to an extended use of pulverised coal in boiler firing ?A. Ash disposal problem
B. Excessive fly-ash discharge from the stack
C. High power consumption in its transportation
D. Erosion of induced draft fan bladesUse of preheated air for combustion of fuel in the furnace, increases the___________________?
Use of preheated air for combustion of fuel in the furnace, increases the___________________?A. Scale losses of the furnace stock
B. Calorific value of the fuel
C. Flame temperature
D. None of these