Effectiveness of a fertiliser is independent of the None of these Nature of soil Type of crop PH of soil TRUE ANSWER : ? YOUR ANSWER : ?
A fertiliser plant is classified as a gas based fertiliser plant, when it uses __________ gas as a source of hydrogen for the manufacture of ammonia. Coal Coke oven Producer Natural TRUE ANSWER : ? YOUR ANSWER : ?
In an ammonia plant, the purge off is essential to Maintain inert gas concentration within a limit Remove uncondensed ammonia vapour Remove excess poisonous gases Maintain H₂ : N₂ ratio at 3 :1 TRUE ANSWER : ? YOUR ANSWER : ?
Fusion zone in the electric furnace used for reduction of phosphate rock to elemental phosphorous is maintained at __________ °C. 950-1050 1400-1450 250-300 500-750 TRUE ANSWER : ? YOUR ANSWER : ?
Fauser Monte Catini converter is used for Ammonia synthesis (e.g. at FCI Sindri) Methanation of CO and CO₂ Shift conversion (i.e. CO to CO₂) None of these TRUE ANSWER : ? YOUR ANSWER : ?
Though liquid ammonia itself is a fertiliser (with 82% nitrogen content) yet it is commonly not used as such in a tropical country like India, because it Has a pungent smell Is in short supply Is toxic and highly corrosive Vaporises at normal temperature TRUE ANSWER : ? YOUR ANSWER : ?
Fertiliser plant making ammonium sulphate employing gypsum-ammonia reaction (usual practice is to use ammonia and sulphuric acid) is located at Rourkela (under SAIL) Bokaro (under SAIL) Sindri (under FCI) Baroda (under G.S.F.C.) TRUE ANSWER : ? YOUR ANSWER : ?
Though kinetics of ammonia synthesis dictates the use of low temperature for high equilibrium conversion, yet it is kept moderately high (550°C), because at low temperature Very high pressure is required resulting in costly pressure vessel Rate of reaction is very low None of these Space velocity of gas is very low resulting in decreased conversion TRUE ANSWER : ? YOUR ANSWER : ?
Heating of orthophosphoric acid to 250°C produces No change in it None of these Metaphosphoric acid Pyrophosphoric acid TRUE ANSWER : ? YOUR ANSWER : ?
The optimum size of the ammonia plant is __________ tons/day. 1000C 100 1000 10 TRUE ANSWER : ? YOUR ANSWER : ?