Unit 5 - Practice Quiz

SOL113 50 Questions
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1 Which of the following nitrogenous fertilizers has the highest percentage of nitrogen?

A. Ammonium Nitrate
B. Ammonium Sulphate
C. Anhydrous Ammonia
D. Urea

2 What is the chemical formula of Urea?

A.
B.
C.
D.

3 Single Super Phosphate (SSP) contains which of the following secondary nutrients in addition to Phosphorus?

A. Calcium and Magnesium
B. Calcium and Sulphur
C. Magnesium and Sulphur
D. Sulphur and Zinc

4 Which potassic fertilizer is most suitable for chloride-sensitive crops like tobacco and potato?

A. Sulphate of Potash (SOP)
B. Potassium Chloride
C. Muriate of Potash (MOP)
D. Sylvite

5 According to the Fertilizer Control Order (FCO), what is the maximum permissible limit of biuret in Urea?

A.
B.
C.
D.

6 Which fertilizer is commonly known as 'Kisan Khad'?

A. Diammonium Phosphate
B. Ammonium Sulphate
C. Urea
D. Calcium Ammonium Nitrate (CAN)

7 Identify the complex fertilizer from the following list.

A. Muriate of Potash
B. Urea
C. Single Super Phosphate
D. Diammonium Phosphate (DAP)

8 What is the conversion factor to calculate elemental Phosphorus () from Phosphate ()?

A.
B.
C.
D.

9 Which soil amendment is primarily used to reclaim Alkali (Sodic) soils?

A. Lime ()
B. Dolomite
C. Gypsum ()
D. Basic Slag

10 Rock phosphate is most effective when applied to which type of soil?

A. Strongly Acidic soil
B. Saline soil
C. Neutral soil
D. Alkaline soil

11 What is the Critical Relative Humidity (CRH) of a fertilizer usually an indicator of?

A. Acidity
B. Hygroscopicity
C. Nutrient content
D. Particle size

12 Which of the following is a water-soluble phosphatic fertilizer?

A. Single Super Phosphate (SSP)
B. Dicalcium Phosphate
C. Rock Phosphate
D. Basic Slag

13 What is the approximate size range of particles in Nano-fertilizers?

A. mm
B. microns
C. nm
D. nm

14 Which chemical is commonly used as a nitrification inhibitor to reduce nitrogen losses from Urea?

A. DAP
B. Formaldehyde
C. Gypsum
D. Neem Oil

15 Basic Slag is a byproduct of which industry?

A. Sugar industry
B. Steel industry
C. Paper industry
D. Textile industry

16 What is the nutrient composition of Muriate of Potash (MOP)?

A.
B.
C.
D.

17 The Fertilizer Control Order (FCO) was promulgated in India in which year?

A. 1985
B. 1990
C. 1966
D. 1955

18 Which of the following is an example of a 'Straight Fertilizer'?

A. Nitrophosphate
B. NPK 19:19:19
C. DAP
D. Urea

19 In the context of micronutrient fertilizers, what does 'EDTA' stand for?

A. Elemental Dust Treatment Agent
B. Ethyl Di-Phosphate Acid
C. Ethyl Diamine Tetra Acetic acid
D. Ethylene Di-amine Tri-Ammonium

20 Which material is used to treat Acid soils?

A. Gypsum
B. Limestone ()
C. Sulphur
D. Iron Pyrite

21 Customized fertilizers are defined as fertilizers that are:

A. Made entirely of organic matter
B. Soil-specific, crop-specific, and area-specific
C. Only available in liquid form
D. Imported from other countries

22 Which fertilizer is extremely hygroscopic and can become explosive under certain conditions?

A. Ammonium Nitrate
B. Potassium Chloride
C. Urea
D. Super Phosphate

23 What is the equivalent acidity of Ammonium Sulphate?

A. 80
B. 60
C. 93
D. 110

24 Zinc Sulphate Heptahydrate has the chemical formula:

A.
B.
C.
D.

25 Press mud (Filter cake) is a soil amendment obtained from:

A. Distilleries
B. Sewage treatment
C. Sugar factories
D. Coal mines

26 Triple Super Phosphate (TSP) contains approximately what percentage of ?

A.
B.
C.
D.

27 Which of the following is a citrate-soluble phosphatic fertilizer?

A. Rock Phosphate
B. Monoammonium Phosphate
C. Dicalcium Phosphate
D. Single Super Phosphate

28 Amide fertilizers contain Nitrogen in the form of:

A.
B.
C.
D.

29 What is the primary advantage of Nano-Urea over conventional Urea?

A. It contains more nitrogen by weight
B. Higher Nitrogen Use Efficiency (NUE)
C. It is cheaper to produce
D. It is solid and easier to transport

30 Iron Pyrite () is chemically oxidized in the soil to form:

A. Nitric Acid
B. Sulphuric Acid
C. Hydrochloric Acid
D. Acetic Acid

31 Which of the following describes 'Caking' of fertilizers?

A. Dissolution in water
B. Loss of nitrogen as gas
C. Change of color due to sunlight
D. Formation of hard lumps during storage

32 Borax () is a common fertilizer used to supply:

A. Boron
B. Iron
C. Copper
D. Manganese

33 Which nitrogenous fertilizer is most prone to leaching losses?

A. Organic Manure
B. Sodium Nitrate
C. Ammonium Sulphate
D. Urea (Neem Coated)

34 Dolomite is a soil amendment that supplies:

A. Calcium and Magnesium
B. Magnesium only
C. Potassium and Calcium
D. Calcium only

35 What is the approximate Nitrogen content in Calcium Ammonium Nitrate (CAN)?

A.
B.
C.
D.

36 Which of the following is considered a '100% Water Soluble Fertilizer' grade commonly used for fertigation?

A. SSP
B. NPK 19:19:19
C. Urea Super Granules
D. Rock Phosphate

37 The term 'Tolerance Limit' in the FCO refers to:

A. The maximum toxicity a plant can handle
B. The expiry date of the fertilizer
C. The permissible deviation in nutrient content from the guaranteed analysis
D. The maximum amount of fertilizer a farmer can buy

38 Schoenite is a fertilizer supplying which nutrients?

A. Zinc and Iron
B. Potassium and Magnesium
C. Calcium and Sulphur
D. Nitrogen and Phosphorus

39 Which enzyme hydrolyzes Urea into Ammonium Carbonate in the soil?

A. Dehydrogenase
B. Phosphatase
C. Urease
D. Nitrogenase

40 Monoammonium Phosphate (MAP) generally has the grade:

A. 0-0-60
B. 11-52-0
C. 46-0-0
D. 18-46-0

41 Neutralizing Value (NV) relates to the quality of:

A. Nitrogen fertilizers
B. Potassic fertilizers
C. Micronutrient chelates
D. Liming materials

42 Which bag material is most suitable for storing hygroscopic fertilizers to prevent moisture ingress?

A. HDPE/PP bags with liners
B. Cotton bags
C. Paper bags
D. Jute bags

43 Fertilizers containing Molybdenum are most commonly applied via:

A. Seed treatment or foliar spray
B. Mixing with Urea only
C. Broadcasting in large quantities
D. Deep placement

44 Which reaction does Ammonium Sulphate undergo in the soil?

A. Neutral
B. Base forming
C. Volatile only
D. Acid forming

45 Bone meal is classified as which type of fertilizer?

A. Inorganic Nitrogenous
B. Synthetic Complex
C. Inorganic Potassic
D. Organic Phosphatic

46 Liquid ammonia must be stored in:

A. Wooden boxes
B. Open containers
C. Plastic drums
D. High-pressure steel tanks

47 Calcium Cyanamide () is unique because:

A. It is a liquid fertilizer
B. It is 100% water insoluble
C. It acts as a herbicide and fertilizer
D. It contains Phosphorus

48 The term 'Filler' in fertilizer mixtures refers to:

A. The coloring agent
B. The nutrient component
C. The acidic component
D. Inert material added to make weight/bulk

49 Sulphur containing fertilizers are particularly beneficial for which crop quality?

A. Fiber strength in cotton
B. Starch in potatoes
C. Sugar content in sugarcane
D. Oil content in oilseeds

50 Potassium Nitrate () is widely used in:

A. Weed control
B. Foliar spray for high-value crops
C. Reclamation of saline soil
D. Basal application for paddy