A. 70
B. 85
C. 105
D. 145
Correct Answer: 105 ✔
Last Updated: March 08, 2019
Related MCQs
- Coke oven gas burns with a yellowish flame, because of the presence of __________?
- With increase in moisture content of coal, its__________?
- In general, the limit of inflammability/explosion limit of fuel gases is widened by the__________?
- Traces of tar fog present in the coke oven gas is removed by__________?
- C/H ratio is the maximum in case of__________?
- The bright glow of a combustion process is the characteristic of __________ temperature oxidation of coal?
- Largest constituent of blast furnace gas is__________?
- A travelling grate stoker is meant for the efficient burning of __________ coal?
- Lurgi coal gasifier is a pressurised __________ bed reactor?
- The fuel ratio of a coal is__________?
- Presence of free moisture in coal is most disadvantageous during__________?
- Fuel for a nuclear reactor (thermal) is __________?
- The calorific value of ‘LPG’ (50% propane + 50% butane) is about __________ kcal/Nm3?
- With increase in the oxygen content of the coal, its __________ decreases?
- Coal tar fuels (CTF) as compared to petroleum based fuel oils have higher __________?
- Nitrogen present in the flue gas is determined in the Orsat apparatus by absorbing it in__________?
- Catalyst used in Fischer-Tropsch process is__________?
- Dry air required to burn 1 kg of carbon completely may be around __________ kg?
- ‘Fat coals’ are those coals which have very high__________?
- With increase in C/H ratio of a fuel, the amount of CO2 formed on its complete combustion__________?
- Wood charcoal is obtained by the destructive distillation of wood. It is used in the production of activated carbon, which is not used for the__________?
- Advantages of fluidised bed combustion are __________?
- The main reason for making the copper calorimeter (used in bomb calorimeter) silvery white and shining/polished is to__________?
- Desirable “Micum Index” values of metallurgical coke are __________?
- Which of the following fuels is the best for burning on chain grate stoker ?
- “Overfire burning” in a furnace is a phenomenon characterised by the __________?
- A coal gasifier operating at 20 atm. (e.g. Lurgi gasifier) as compared to one operating at atmospheric pressure (e.g. Kopper-Totzek or Winkler gasifier) will produce a gas having __________?
- For every 10% increase in the excess air; the fuel consumption increases by __________ percent?
- Main use of hard coke produced by high temperature carbonisation is in the __________ ?
- Percentage of carbon monoxide in blast furnace gas may be around __________ ?
- Which is the most matured coal ?
- Pitch creosote mixture (PCM) as compared to furnace oil is a better fuel, because its __________?
- Incomplete combustion of a fuel is characterised by the high __________ in the flue gas?
- Very __________ coals are completely devoid of cokability i.e., it is non-coking ?
- High excess air in combustion of fuels results in__________?
- “Micum Index” of a coke is a measure of its__________?
- __________ has the widest inflammability limit (explosion limit) of all the gases?
- A good metallurgical coke__________?
- The cuprous chloride used in orsat apparatus can absorb__________?
- A gaseous fuel in order to develop luminosity on burning, must contain __________?
- L.D. converter gas (produced in steel plant) comprises mainly of __________?
- Highly caking coals__________?
- The hottest part of the flame lies in its __________ zone?
- The average molecular weight of a flue gas having the composition by volume as CO2 = 25%, O2 = 25%, N2 = 50% will be__________?
- Optimum preheating temperature for pitch creosote mixture (PCM) which is also termed as C.T.F-200, before atomisation through burners is__________?
- Gross calorific value will be equal to the net calorific value for __________?
- Which of the following is not endothermic ?
- Cannel coal and boghead coal are the examples of __________?
- Main constituent of the gas produced from a gobar gas plant is__________?
- Caking index of the coal blend used for the manufacture of metallurgical coke should be around__________?
- ‘Wind loss’ resulting from unscientific storage of coal may be the order of about __________ percent?