A. 1800
B. 800
C. 4500
D. 10000
Correct Answer: 1800 ✔
Last Updated: March 08, 2019
Related MCQs
- Abrasion index of blast furnace coke should be around __________ percent?
- Power alcohol as compared to straight run gasoline has lower __________?
- Which of the following petrographic constituents of coal is non-coking ?
- The reaction, C + CO2 ↔ 2CO, taking place during coal gasification is called the __________ reaction?
- Presence of phosphorous in metallurgical coal__________?
- Which is the heaviest fuel gas out of the following ?
- The calorific value of producer gas is around __________ kcal/Nm3?
- Short/intense flame is produced during combustion of gaseous fuel by using__________?
- During combustion of coal on grate, clinker formation is increased by the__________?
- Calorific value of coke even gas produced by low temperature carbonisation of coal is about __________ Kcal/Nm3?
- Softening temperature of coal ash is a measure of the __________ of coal?
- A sample of natural gas containing 80% methane (CH4) and rest nitrogen (N2) is burnt with 20% excess air. With 80% of the combustibles producing CO2 and the remainder going to CO, the Orsat analysis in volume percent is__________?
- Higher fuel combustion efficiency cannot be achieved by__________?
- Tolerable concentration of toxic carbon monoxide in atmospheric air is about __________ ppm?
- Which of the following combustibles is absent in blast furnace gas ?
- A carbonaceous fuel (containing no H2 or hydrocarbons) is burnt and the resulting flue gas contains 21% CO2. It means that__________?
- Percentage of methane in coke oven gas may be around __________?
- Gobar gas is produced by the __________ of ‘gobar’ (cow dung) ?
- Atomising steam to fuel oil ratio in a burner should be around__________?
- The maximum adiabatic flame temperature is attained, when the fuel is burnt with __________?
- Volatile matter content in coking coal may be about __________ percent?
- With increase in the temperature of carbonisation of coal __________?
- The catalyst used in shift converter is __________?
- Calorific value of a typical dry anthracite coal may be around __________ Kcal/kg?
- Low temperature oxidation of coal during storage does not decrease its__________?
- Theoretical flame temperature of a fuel is that temperature which is attained, when the fuel is completely burnt ‘using theoretical amount of air in__________?
- __________ is used as jet engine fuel ?
- Tar is a better fuel than furnace oil, because of its__________?
- In low temperature carbonisation (as compared to high temperature carbonisation) of coal__________?
- Which of the following will be unsuitable for dust cleaning from flue gas at 400°C from a pulverised coal fired boiler ?
- Artificial draught produced by a fan can be controlled by the__________?
- Out of the following, which is the most important parameter for the blast furnace grade coke ?
- Coke having higher porosity has __________?
- Coals used for the generation of producer gas should have __________?
- Caking coal is desirable for__________?
- A coal having higher volatile matter content, has lower__________?
- Which of the following is unsuitable fuel for producer gas manufacture ?
- Use of preheated air for combustion of fuel in the furnace, increases the__________?
- Which of the following is a poisonous fuel gas ?
- Blast furnace gas compared to coke oven gas has__________?
- Which of the following has the highest calorific value (kcal/Nm3) ?
- The main function of primary air in pulverised coal fired burner is to__________?
- Weathering of coal during storage causes__________?
- Number of macrocomponents present in coal according to Stopes are __________?
- Which will have the least volatile matter and hence will be the most difficult to ignite ?
- Which of the following petrological constitutes is responsible for bright and lustrous black band of bituminous coal ?
- High sulphur content in a fuel __________ of the flue gases?
- Low temperature oxidation of stored coal results in the__________?
- High rate of heating of coke ovens__________?
- ombustion of pulverised coal compared to the lumpy coal __________?
- Supply of excess air for complete combustion of fuel is necessitated to facilitate__________?