Fuels and Combustion Quiz 2
1 / 50
Bituminous coal_____?
2 / 50
As the C/H ratio of the fuel increases, the amount of CO2 formed on combustion ________ for the same percentage of excess air?
3 / 50
Coal is heated in absence of air for 7 minutes at a temperature of about _______ ?C, during its volatile matter determination for proximate analysis?
4 / 50
Caking index of a coal is a measure of its _________?
5 / 50
Beehive coke oven_________?
6 / 50
Calorific value of both the solid & liquid fuels can be determined by using _______ calorimeter?
7 / 50
Blast furnace gas is a very poisonous gas because of its predominantly high ________ content?
8 / 50
Calorific value of coke oven gas is around _______ Kcal/Nm3?
9 / 50
Bomb calorimeter is used to determine the (where, GCV ? Gross Calorific Value. NCV ? Net Calorific Value.) ?
10 / 50
Calorific value of blast furnace gas is around ______ KCal/Nm3?
11 / 50
Blast furnace gas compared to coke oven gas has__________?
12 / 50
Benzene is used___________?
13 / 50
By-products are ______ recovered in ?Beehive ovens? ?
14 / 50
Calorific values of both the solid as well as the liquid fuels can be determined by _______ calorimeter?
15 / 50
Calorific value of gobar gas (containing CH4 = 60% , H2 = 10% ; CO2 = 30%) may be about _______ Kcal/Nm3?
16 / 50
Bright coal___________?
17 / 50
C/H ratio is the minimum in case of__________?
18 / 50
Blast furnace gas burns with a bluish flame, because of the presence of______?
19 / 50
As the equilibrium moisture content of the coal increases, its_____?
20 / 50
Calorific value of bituminous coal may be around _______ Kcal/kg?
21 / 50
Calorific value of furnace oil is about ________ Kcal/kg?
22 / 50
Bunsen burner is an example of a/an ______ burner?
23 / 50
Calorific value of wood gas is about _______ kcal/Nm3?
24 / 50
Bulk density of pulverised coal may be about _______ kg/m3?
25 / 50
Caking index of coal blend used for blast furnace coke making is about__________?
26 / 50
Assam (India) coals suffers mainly from the disadvantage of high _______ content?
27 / 50
Coal is heated in presence of air to a temperature of about ________ ?C, while determining its ash content for proximate analysis?
28 / 50
Calorific value of a typical dry anthracite coal may be around ______ Kcal/kg?
29 / 50
Benzol is used_______?
30 / 50
Ash content in the coke produced from a coking coal having 20% ash may be around ______ percent?
31 / 50
Blast furnace coke is made from coal by_______?
32 / 50
Calorific value of coal middling generated in coal washeries during washing of coal may be around ______ Kcal/kg?
33 / 50
Caking coal is desirable for__________?
34 / 50
Calorific value of coke even gas produced by low temperature carbonisation of coal is about _____ Kcal/Nm3?
35 / 50
Calorific value as determined by bomb calorimeter is the___________?
36 / 50
By-products recovery process from coal carbonisation is termed as direct, indirect and semi direct process depending upon the method of recovery of________?
37 / 50
Cannel coal and boghead coal are the examples of __________?
38 / 50
Caking index of the coal blend used for the manufacture of metallurgical coke should be around___________?
39 / 50
Calorific value of ______?
40 / 50
Bomb calorimeter can be used to determine the ______ of the coal?
41 / 50
Calorific value of tar is about ______ Kcal/kg?
42 / 50
Catalyst used in Fischer-Tropsch process is________?
43 / 50
Cannel coal___________?
44 / 50
Bomb calorimeter is used for the determination of calorific value of the ______ fuels?
45 / 50
Calorific value of dry wood may be around _______ Kcal/kg?
46 / 50
Coal containing large quantity of ________ are difficult to wash?
47 / 50
Atomising steam to fuel oil ratio in a burner should be around___________?
48 / 50
Carbon Content by weight in air dried wood may be about ________ percent?
49 / 50
Blast furnace gas constitutes mainly of__________?
50 / 50
C/H ratio is the maximum in case of__________?
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