40 TOP Fertiliser Technology Online Test – Multiple Choice Questions and Answers Posted on April 16, 2024April 16, 2024 by engineerLeave a comment 1. The optimum size of the ammonia plant is __________ tons/day 10 100 1000 1000c 2. Phosphatic fertilisers are useful during early stage of the plant growth accelerate fruit formation in later stages of growth lessen the effect of excessive nitrogen application none of these 3. Heating of orthophosphoric acid to about 900°C, produces pyrophosphoric acid no change in it metaphosphoric acid none of these 4. Ammonium nitrate (is mixed with limestone) is not used as fertiliser as such, because it is a liquid at room temperature it is hygroscopic and explosive in nature it is highly acidic in nature its nitrogen content is very less 5. Main component of bone ash is sodium phosphate calcium sulphate calcium carbonate calcium phosphate 6. Catalyst used in steam reforming of naphtha is silica gel rhodium platinum nickel 7. In __________ converter for ammonia synthesis, the catalyst is arranged in the form of a single continuous bed Fauser-Monte Catini Claude Kellog Udhe 8. Rock phosphate constitutes mainly of di-ammonium phosphate di-calcium phosphate fluorapatite mono-calcium phosphate 9. Which of the following is not a commercially used feed-stock for the production of ammonia synthesis gas? Coal/coke oven gas Naphtha Tar Water 10. Nitrogen content of calcium ammonium nitrate (CAN) is __________ percent 10 25 50 80 Loading … Question 1 of 10
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