A. Furnace oil
B. Natural gas
C. Coal
D. Naphtha
Correct Answer: Natural gas ✔
Last Updated: March 08, 2019
Related MCQs
- The calorific value of a gas of composition CO2 = 20%, H2 = 50%, CH4 = 30%, is y. If the composition of gas is changed to H2 = 50%, CH4 = 30%, CO2 = 10%, N2 = 10%, then the calorific value will be__________?
- The gasification reaction represented by, C + H2O = CO + H2, is__________?
- Quantity of coke oven gas produced by high temperature carbonisation of one ton of dry coal may be around __________ Nm3?
- For long flame and easy ignition, the coal used should have__________?
- Coke oven gas is stripped of its H2S and mercaptans content by__________?
- Presence of nitrogen in combustion air does not reduce the __________?
- Coke oven gas constitutes mainly of __________?
- Natural draft created by the chimney depends upon __________?
- Coke oven gas produced by high temperature carbonisation of coal (as compared to that produced by low temperature carbonisation), has__________?
- Purity of coke means that, it is high in carbon and low in __________?
- Which of the following is not a ‘manufactured’ fuel ?
- Which of the following has the highest gross calorific value ?
- With increase in moisture content of coal, its__________?
- Calorific value of tar is about __________ Kcal/kg?
- Orsat apparatus__________?
- Shatter index of the coke is a measure of its__________?
- Fuel consumption in coke making can be reduced by__________?
- The cooling medium used in dry quenching of coke is__________?
- Proximate analysis of coal determines its __________ content?
- The maximum percentage of CO2 in a flue gas (from a carbonaceous fuel) can be__________?
- Yield of pitch from distillation of high temperature tar is around __________ percent?
- Hardgrove Grindability index of four coal samples are given below. Which of them is the easiest to grind ?
- Tar yield in the low temperature and high temperature carbonisation of dry coal may be respectively __________ percent?
- ‘Fat’ coal means a coal having __________?
- Naphthalene is removed from coke oven gas by__________?
- Octane number of 2, 2, 4 – trimethyl pentane is __________?
- Which of the following has the highest calorific value ?
- Flue gas obtained on complete combustion of pure acetylene (a hydrocarbon fuel) will contain __________?
- Initial pressure of oxygen introduced into the ‘bomb’ of the bomb calorimeter for determination of calorific value of coal/fuel oil may be around __________ atm?
- Which of the following has the highest heat of combustion ?
- The calorific value of L.D. converter gas is about __________ Kcal/Nm3?
- 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 __________?