A. Uranium
B. Plutonium
C. Radium
D. None of these
Correct Answer: Uranium ✔
Last Updated: March 08, 2019
Related MCQs
- 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?
- Laboratory gas is obtained by the cracking of__________?
- Coal is pulverised before burning in large capacity boiler furnaces mainly to__________
- Mott and Wheeler test is conducted on coke to find its __________?
- A coal having high volatile matter content will __________?
- Combustion reaction of fuels is a/an __________ reaction?
- A fuel containing carbon and carbon monoxide (but containing no hydrogen or its compounds) is burnt in pure oxygen at constant pressure. Its gross calorific value as compared to net calorific value will be__________?
- Bomb calorimeter can be used to determine the __________ of the coal?
- Largest constituent of coke oven gas is__________?
- The maximum adiabatic flame temperature in air is __________ the maximum flame temperature in pure oxygen?
- The main drawback of supplying more excess air in the combustion of fuel is the__________?
- Bunsen burner is an example of a/an __________ burner?
- Bulk density of pulverised coal may be about __________ kg/m3?