Description : Selective herbicide under cotton + black gram intercropping system a). Diuron b). Oxadiazon c). Fluchloralin d). All
Last Answer : b). Oxadiazon
Description : . Herbicide effectively controls Saccharum and Sorghum halepense only at pre flowering stage a). Diuron b). Atrazine c). Amitrole d). Both a and c
Last Answer : d). Both a and c
Description : A herbicide both soil and foliage active a). 2,4-D b). Isoproturon c). Diuron d). All of these
Last Answer : d). All of these
Description : Herbicidal control of pre-established thatch grass (Imperata cylindrical) con trol in tea orchard a). Glyphosate + 2,4-D b). Oxyflourfen + 2,4-D c). Diuron + 2,4-D d). Paraquat + 2,4-D
Last Answer : a). Glyphosate + 2,4-D
Description : Epinasty of cotton is used to measure qualitative assay of a). Atrazine b). 2,4-D c). Diuron d). Alachlor
Last Answer : b). 2,4-D
Description : Which herbicide is used in aquatic weed control? a). Acrolein b). Delapon c). Diuron d). Picloram
Last Answer : a). Acrolein
Description : Which herbicide is systemic and translocated type ? a). Atrazine b). Diuron c). Paraquat d). Glyphosate
Last Answer : d). Glyphosate
Description : Dehalogenation is the most common inacti vation reaction in which of the following a).Simazine b). Glyphosate c). Pendimethalin d). Bispyribac
Last Answer : a).Simazine
Description : How many times atrazine is more soluble than simazine? a). 1 b). 2 c). 4 d). 6
Last Answer : d). 6
Description : hich is the less toxic herbicide? a). Atrazine b). 2,4-D c). Simazine d). All of these
Description : The herbicide perform better in sunny days a). 2,4-D b). Paraquat c). Simazine d). All of these
Description : Simazine or atrazine is added to glyphosate solution then glyphosate activity a). constant b). enhanced c). reduced d). None of the above
Last Answer : c). reduced
Description : Commonly used chemical fertilizer to con trol submerged weeds and water bloom non -selectively a). Anhydrous ammonia b). Ammonium sulphate c). Ammonium nitrate d). Urea
Last Answer : d). Urea
Description : Is copper II sulfate pentahydrate sublime?
Last Answer : Sublimation of Cu(II)SO4.5H2O is not known.
Description : Microbial breakdown of phenoxy herbicides such as 2,4-D and MCPA is enhanced by addition of a). Nitrate b). Sulphate c). Phosphate d). Chlorate
Last Answer : c). Phosphate
Description : The most commonly used herbicide in rub ber plantation a). Amitrole T b). Paraquat c). Both d). None
Last Answer : c). Both
Description : Herbicide commonly available as fumigant is a). Methyl bromide b). Metham c). Allyl alcohol d). All of these
Description : Commonly used wetting agent for herbicide spray in India a). Soap solution b). Teepol c). Uphar d). All of these
Description : . Commonly used post-emergence herbicide in wheat a). 2,4-D b). Isoproturon c). Atrazine d). Both a and b
Last Answer : d). Both a and b
Description : Implements commonly used in dry farming areas a). Sweep b). Blade harrow c). Spike tooth harrow d). Both a and b
Description : In sewage treatment, its sedimentation is speeded up by commonly adding (A) Hydrochloric acid (B) Lime (C) Copper sulphate (D) Sodium sulphate
Last Answer : (B) Lime
Description : Most widely and commonly used coagulant for the removal of suspended impurities in water is (A) Bleaching powder (B) Slaked lime (C) Alum (D) Copper sulphate
Last Answer : (C) Alum
Description : For controlling algae, the most commonly used chemical, is (A) Copper sulphate (B) Alum (C) Lime (D) Bleaching powder
Last Answer : (A) Copper sulphate
Description : is generally added to water when processing flowers in a retail floral shop. a. Herbicide b. Insecticide c. Biocide d. Algicide
Last Answer : Biocide
Description : DCMU, (3,4-dichlorophenyl , 1-dimethyl urea, also called diuron) a potent herbicide , inhibits
Last Answer : DCMU, (3,4-dichlorophenyl , 1-dimethyl urea, also called diuron) a potent herbicide , inhibits A. ... . Both (1) amd (2) D. oxidative phosphorylation
Description : Atazine and Simazine belong to the chemical group
Last Answer : Ans.Triazines
Description : 2, 4-D, Simazine, Atrazine and Fluchloralin belongs to the selectivity group
Last Answer : Ans.Selective herbicides
Description : Most common herbicide used in maize ? a Atrazine b Simazine c Alachlor d Pendimethalin
Last Answer : b Simazine
Description : Which of the following statement is true a. Maize is monoecious b. Maize protein is zein c. Simazine herbicide is used in maize d. All of these
Last Answer : d. All of these
Description : The chemical Calcium Sulphate is commonly known by which name?
Last Answer : Answer: Gypsum
Description : Hardness of the water is commonly measured in terms of - (1) Calcium carbonate equivalents (2) Calcium sulphate equivalents (3) Magnesium carbonate equivalents (4) Magnesium sulphate equivalents
Last Answer : (1) Calcium carbonate equivalents
Description : The chemical name of "Plaster of Paris" commonly used for setting broken bones is – (1) Calcium nitrate (2) Calcium sulphate (3) Calcium carbonate (4) Calcium chloride
Last Answer : (2) Calcium sulphate Explanation: Plaster of Paris is the common name of Calcium Sulphate hemihydrate, with chemical formula: CaSO4.1/2H2O. Plaster of Paris is produced by heating gypsum to about 150°C.
Description : Aluminium salt commonly used to stop bleeding is - (1) Aluminium nitrate (2) Aluminium sulphate (3) Aluminium Chloride (4) Potash alum
Last Answer : (2) Aluminium sulphate Explanation: Alum (Aluminium Sulfate) is used to stop bleeding. For example, Styptic pencils containing aluminium sulfate are used as astringents to prevent bleeding from small shaving cuts. It constricts blood vessels to stop the flow of blood.
Description : The most commonly used chemical coagulant in water treatment is (A) Ferrous sulphate (B) Alum (C) Lime (D) Hydrazine
Last Answer : (B) Alum
Description : Aluminium salt commonly used to stop bleeding is (1) Aluminium nitrate (2) Aluminium sulphate (3) Aluminium Chloride (4) Potash alum
Last Answer : Aluminium sulphate
Description : The chemical name of “Plaster of Paris” commonly used for setting broken bones is (1) Calcium nitrate (2) Calcium sulphate (3) Calcium carbonate (4) Calcium chloride
Last Answer : Calcium sulphate
Description : Hardness of the water is commonly measured in terms of (1) Calcium carbonate equivalents (2) Calcium sulphate equivalents (3) Magnesium carbonate equivalents (4) Magnesium sulphate equivalents
Last Answer : Calcium carbonate equivalents
Description : In a 100 quadrat study of 1 sqm each Cyperus rotundus was found in 80 quadrats with overall of 5640 individuals. The frequency (%), abun dance and density (m2) would be a). 70.5, 80.0 and 56.4 b). 56.4, 70.5 and 80.0 c). 80.0, 70.5 and 56.4 d). 80.0, 56.4 and 70.5
Last Answer : c). 80.0, 70.5 and 56.4
Description : If Echinochloa falls in frequency class ‘E’, the weed community is said to be a). Contiguous b). Heterogenous c). Homogenous d). Random
Last Answer : c). Homogenous
Description : Out of 50 quadrats studied, if Echinochloa is found in 26 quadrats, its frequency of occurrence would be a). 13% b). 26% c). 52% d). 68%
Last Answer : c). 52%
Description : If weed population is 70/m2 and the crop 140/ m2, weed intensity would be a). 33.3% b). 66.6% c). 50% d). 73.4%
Last Answer : a). 33.3%
Description : If the count of Echinochloa in weedy check is 70 and that in a treatment 25/m2, weed control efficiency will be a). 54.3% b). 64.3% c). 73.4% d). 79.6%
Last Answer : b). 64.3%
Description : If the yield from weed free is 3500 kg and that from weedy 1500 kg/ha, weed index would be a). 57.1% b). 133.3% c). 45.0% d). 25.6%
Last Answer : a). 57.1%
Description : If the gross returns from an enterprise are INR 30000 and the net returns INR 20000, the benefit cost ratio based on net gain would be a). 3.0 b). 2.0 c). 1.0 d). 1.5
Last Answer : b). 2.0
Description : The cost of any activity measured in terms of the value of the next best alternative forgone a). Economic cost b). Variable cost c). Opportunity cost d). Marginal cost
Last Answer : c). Opportunity cost
Description : A cost independent of the quantity of goods and services produced a). Variable cost b). Fixed cost c). Opportunity cost d). Marginal cos
Last Answer : b). Fixed cost
Description : The additional cost from taking a cost of action is called a). Total cost b). Opportunity cost c). Variable cost d). Marginal cost
Last Answer : d). Marginal cost
Description : Marginal cost is defined as____ a). Cost that arises when the quantity produced changes by one unit b). Cost of producing one more unit of a good c). Increase in cost that accompanies a unit in crease in output d). All the above
Last Answer : d). All the above
Description : Economic cost is the sum of________ a). Variable and fixed costs b). Variable, fixed and opportunity costs c). Fixed and opportunity costs d). Variable, fixed and marginal costs
Last Answer : b). Variable, fixed and opportunity costs
Description : . A ceremonial weed a). Cynodon dactylon b). Datura stramonium c). Tagetus sp d). All of these