Description : 5-10-5 fertilisers mean that they contain (A) 5, 10, 5% respectively of N2 , P2O5 and K2O (B) Only 5 to 10% active fertiliser constituents (C) 5 to 10% filler & carrier of soil conditioners (D) None of these
Last Answer : (A) 5, 10, 5% respectively of N2 , P2O5 and K2O
Description : The relative percentage of N2 , P2O5 and K2O” in a fertilizer
Last Answer : Ans. Fertilizer ratio
Description : A Potassic fertiliser contains 50% K2O. It could be (A) Potassium sulphate (B) Potassium chloride (C) A mixture of NaCl + KCl (D) None of these
Last Answer : (A) Potassium sulphate
Description : A phosphatic fertiliser contains 16% P2O5 . It could be (A) Dicalcium phosphate (B) Superphosphate (C) Triple superphosphate (D) None of these
Last Answer : (B) Superphosphate
Description : A dealer buys an article marked at Rs. 50,000 at 25% and 10% successive discount. He spends Rs. 5000 on its repair and sells it for Rs. 50,000. What is his loss or gain percentage? 1. 33.63% loss 2. 26.43% gain 3. 1.25% gain 4. 29.03% 5. 27.13% loss
Last Answer : CP of the article
Description : Potassic fertiliser is graded based on its __________ content. (A) KCl (B) K2O (C) KNO3 (D) K2SO4
Last Answer : (B) K2O
Description : A nitrogenous fertiliser contains 20% N2 . It could be (A) Ammonium nitrate (B) Calcium ammonium nitrate (CAN) (C) Urea (D) Ammonium chloride
Last Answer : (B) Calcium ammonium nitrate (CAN)
Description : A fertiliser contains 82% N2 . It could be (A) Urea (B) Liquid NH3 (C) Ammonium nitrate (D) None of these
Last Answer : (B) Liquid NH3
Description : Phosphatic fertiliser is graded based on its __________ content. (A) P2O3 (B) PCl5 (C) P2O5 (D) H3PO4
Last Answer : (C) P2O5
Description : Fertiliser value of a nitrogenous fertiliser is expressed in terms of its __________ content. (A) N2 (B) KNO3 (C) NO2 (D) NHO3
Last Answer : (A) N2
Description : Naphtha in a fertiliser plant is used as a source of (A) Fuel (B) H2 (C) N2 (D) O2
Last Answer : (B) H2
Description : Liquid ammonia is not used as such a fertiliser in tropical countries like India, because (A) Its N2 content is very low (B) It is very costly (C) It will evaporate on spraying (D) It is not available
Last Answer : (C) It will evaporate on spraying
Description : Fertiliser plants get their N2 requirements (A) By fractionation of liquefied air (B) By dissociating oxides of nitrogen (C) From coal gas (coke oven gas) (D) From producer gas
Last Answer : (A) By fractionation of liquefied air
Description : Cement mainly contains (A) CaO, SiO2 , Al2O3 (B) MgO, SiO2 , K2O (C) Al2O3 , MgO, Fe2O3 (D) CaO, MgO, K2O
Last Answer : (A) CaO, SiO2 , Al2O3
Description : Triple superphosphate which contains about 46% P2O5 is produced by the reaction of phosphate rock with ortho phosphoric acid of________ percent concentration. (A) 25-28 (B) 52-54 (C) 75-80 (D) > 98
Last Answer : (B) 52-54
Description : Most common stainless steel type 316, which is highly resistant to corrosion contains (A) 16-13% Cr 10-14% Ni and 2-3% Mo (B) 20-22% Cr, and 8-10% Ni (C) 2-4% Cr, 22% NI and 2-4% Mo (D) None of these
Last Answer : (A) 16-13% Cr 10-14% Ni and 2-3% Mo
Description : Pick out the wrong statement. (A) All the nitrogenous fertilisers are not soluble in water (B) A straight fertiliser contains only one nutrient (C) Calcium cyanamide is used as weed killer in onion fields (D) The phosphorous nutrient makes the plant stem stronger and increases its branches
Last Answer : (A) All the nitrogenous fertilisers are not soluble in water
Description : A hardened steel essentially contains (A) Sorbite (B) Troostite (C) Martensite (D) None of these
Last Answer : (C) Martensite
Description : Anthracite coal (A) Contains more volatile matter than bituminous coal (B) Ignites more easily than bituminous coal (C) Is essentially a coking coal (D) Burns with short, bluish, yellow-tipped flame producing very little smoke
Last Answer : (D) Burns with short, bluish, yellow-tipped flame producing very little smoke
Description : Which is a catalyst promoter used in catalytic ammonia synthesis reaction? (A) Al2O3 (B) Cr2O3 (C) K2O (D) MnO
Last Answer : (C) K2O
Description : Promoter used in NH3 synthesis catalyst is (A) K2O (B) SiO3 (C) V2O5 (D) U2O3
Last Answer : (C) V2O5
Description : Catalyst used in ammonia synthesis uses __________ as a promoter. (A) Pt (B) K2O (C) Al2O3 (D) Ni
Description : Which of the following contains least amount of N2? (A) Coke oven gas (B) Blast furnace gas (C) Producer gas (D) Water gas (blue gas)
Last Answer : (A) Coke oven gas
Description : P2O5 content in triple superphosphate is about __________ percent. (A) 42-50 (B) 15-20 (C) 85-90 (D) 70-75
Last Answer : (A) 42-50
Description : P2O5 content in superphosphate is about __________ percent. (A) 30-35 (B) 15-20 (C) 65-70 (D) 85-90
Last Answer : (B) 15-20
Description : P2O5 percentage in the phosphoric acid produced by wet process is about (A) 10 (B) 30 (C) 50 (D) 70
Last Answer : (B) 30
Description : The substance used as a smoke screen in warfare is (A) C2H2 (B) SiCl4 (C) P2O5 (D) PCl5
Last Answer : Option B
Description : Bone is used as a fertiliser because it contains the plant nutrient (1) Nitrogen (2) Phosphorus (3) Sodium (4) Calcium
Last Answer : Phosphorus
Description : Pearlite comprises of (A) 87% cementite & 13% Fe (B) 87% ferrite & 13% cementite (C) 93.33% ferrite & 6.67% C (D) 87% ferrite & 13% C
Last Answer : (B) 87% ferrite & 13% cementite
Description : In Haber process of production of ammonia K2O is used as :
Last Answer : In Haber process of production of ammonia K2O is used as : a. catalyst b. inhibitor c. promotor d. adsorbate
Description : Potassic fertilizer containing highest amount of K2O
Last Answer : Ans. Muriate of potash/KCl (60%K2O)
Description : Which of the following oxide(s) is/are soluble in water to form alkalis? (i) Na2O (ii) SO2 (iii) K2O (iv) NO2 (a) (i) and (iii) (b) (i) only (c) (ii) and (iv) (d) (iii) only
Last Answer : Answer: (a)
Description : Toxicity of Mg can be modified by adding ________: a. N b. PO4 c. Ca d. K2O
Last Answer : Ca
Description : Soils having 200 kg available K2O/ha will be — fertile soil for K a. High b. Low c. Medium d. None of these
Last Answer : c. Medium
Description : Express each of the following as a ratio: (i) 43% (ii) 36% (iii) 7.5% (iv) 125% -Maths
Last Answer : answer:
Description : What is the decimal of 43%?
Last Answer : decimal of 43/125 = 0.34443/125:= 43 ÷ 125= 0.344 in decimal
Description : The approximate representation of land use classification in India is [IAS 2010] (a) net area sown 25%; forests 33%; other areas 42% (b) net area sown 58%; forests 17%; other areas 25% (c) net area sown 43%; forests 29%; other areas 28% (d) net area sown 47%; forests 23%; other areas 30%
Last Answer : Ans: (d)
Description : What is the share of population between 15 to 64 Years in the total population? A. 21% B. 43% C. 53.09 D. 55.07%
Last Answer : ANSWER: C
Description : The ratio of industrial contribution to GDP growth during 2011-12 is A. 23.43% B. 20% C. 20.5% D. 18.9%
Last Answer : ANSWER: A
Description : How much of total natural gas is obtained from Sui? A. 43% B. 55% C. 29% D. 32%
Description : In the mid of 2012 the share of agriculture in employment is. A. 43% B. 44% C. 45% D. 46%
Description : Mountains account for ____________ percent of the total surface area of the country? (a) 17% (b) 27% (c) 30% (d) 43%
Last Answer : (c) 30%
Description : The quantity of Orange available at vendor A is approximately what percent more than that of Apple available at vendor B? 1) 61.52% 2) 68.4% 3) 82% 4) 90% 5) 71.43%
Last Answer : 5) 71.43%
Description : In the Traditional Segment, age as a buying criteria is accounts for which percentage of the consumer decision: a. 53%. b. 43%. c. 47%.
Last Answer : c. 47%.
Description : Price accounts for _________customers’ decision-making in the low end sector. a. 75% b. 95% c. 53% d. 47% e. 43%
Last Answer : c. 53%
Description : Which of the following molecules contains a polar covalent bond A.H2 B.N2 C.CO D.O2?
Last Answer : C. CO
Description : The region where the Lyman series contains the wavelength 1∕ λ = RH [1/ 12 – 1/ n2 ] is a) visible region b) infrared region c) ultraviolet region d ) none of these
Last Answer : c) ultraviolet region