Description : The potential of a pesticide for causing damage to plants is its: a). phytotoxicity b). lethal dose c). defoliation ability d). chronicity
Last Answer : a). phytotoxicity
Description : . Which of the following physiological proc ess influence the herbicide selectivity? a). Absorption and translocation b). Deactivation c). Phytotoxicity d). All of these
Last Answer : d). All of these
Description : Amount of Alachlor 50% EC for spray ing 12 ha maize field (given the dose 1.5 kg ai/ha) a). 36 kg b). 18 kg c). 54 kg d).12 kg
Last Answer : a). 36 kg
Description : Which of the herbicide (ai) requiring higher amount for a unit area to be sprayed a). Bispyribac-sodium b). Butachlor c). Cyhalofop-butyl d). Pyrazosulfuron-ethyl
Last Answer : b). Butachlor
Description : Which type of herbicides act as growth pro moter under sub-lethal dose a). Phenoxys b). Triazines c). Ureas and uracils d). All
Last Answer : d). All
Description : At sub lethal dose which of the herbicides improves colour of the apple a). 2,4-D b). 2,4,5-T c). MCPA d). All of these
Last Answer : b). 2,4,5-T
Description : Lowest dose of the benchmark a).1/90 b).1/100 c).1/80 d).1/50
Last Answer : b).1/100
Description : Intermediate rate of benchmark dose a).1/10 b).1/8 c).1/5 d).1/7
Last Answer : a).1/10
Description : The type of soils which require higher dose of herbicides to be effective is a). Inceptisols b). Histosols c). Oxisols d). Ultisols
Last Answer : b). Histosols
Description : If a person has been exposed to radiation, presenting symptoms, such as nausea, vomiting, loss of appetite, diarrhea, or fatigue can be expected to occur within _______ hours after exposure? ... prodromal phase (presenting symptoms) of radiation exposure occurs within 48 to 72 hours after exposure.
Last Answer : a) 48 to 72 The prodromal phase (presenting symptoms) of radiation exposure occurs within 48 to 72 hours after exposure. Signs and symptoms include nausea, vomiting, loss of appetite, ... radiation exposure, the signs and symptoms may include fever, respiratory distress, and increased excitability.
Description : The authority associated with the first genetically modified plants the soybean resistant to glyphosate from Monsanto which achieved widespread success was a.) Rachel Carson (May 27, 1907 - April 14, 1964) b). ... Fraley (birthdate: 1953) d). Norman Borlaug (March 25, 1914 - September 12, 2009)
Last Answer : c). Robert Fraley (birthdate: 1953)
Description : Bleomycin is used in most effective drug combination regiment for the chemotherapy of testicular carcinoma. Which one of the following statements about the drug is accurate? (a) Acts mainly in the ... neuropathy occurs in more than 50% of patients (e) Pulmonary infiltrates and fibrosis may occur
Last Answer : Ans: E
Description : The catalytic power of enzymes is due to (a) the presence of amino acids in their structures (b) their high molecular weight (c) their ability to lower the activation energy of the reaction (d) their limited solubility in water and other solvents
Last Answer : Ans:(c)
Description : Persistence herbicides pose hazard in soil when a). High persistence herbicides are used b). Crop failure necessitate re-planting c). Susceptible crop follows a short crop d). All
Description : High levels of Adoption of herbicide resistant crops have dramatically ____________ the use of herbicides a).I ncreased b). Decreased c). No effect d). None of the above
Last Answer : a).I ncreased
Description : The weather condition is optimum for herbicidal weed control? a). High temperature low humidity b). High temperature high humidity c). warm temperature high humidity d). cold temperature low humidity
Last Answer : c). warm temperature high humidity
Description : The condition intensifies the spread of perennial propagules of weeds after being exposed by tillage a). Hot weather b). Rainfall c). High light intensity d). High wind
Last Answer : b). Rainfall
Description : Besides NA and R 25788, other safeners to counteract the effect of carbamate herbi cide is a). CGA 43089 b). CGA 92194 c). Mon 4606 d). All of these
Description : Besides isoproturon resistance in P. minor, other cases of herbicide resis tance reported in India are a). Poa annua b). Brachiaria ramosa c). Commelina sp d). None of the above
Last Answer : d). None of the above
Description : Montmorillonite clays adsorb more herbicide as compared to other clays due to a). Expanding lattices b). more surface area c). More negatively charged sites d). All
Description : Cast iron (A) Is obtained by purifying pig iron (B) Is manufactured in required shapes (C) May contain 2 to 5 per cent of carbon with other impurities (D) All the above
Last Answer : Answer: Option D
Description : Most covalent compounds (a) Behave like electrolytes in the molten state (b) Have high melting and boiling points (c) Are hard substances because of strong covalent bonds (d) Are more soluble in non-polar solvents than in polar solvents
Last Answer : Ans:(d)
Description : In a liquid-liquid extraction, 10 kg of a solution containing 2 kg of solute C and 8 kg of solvent A is brought into contact with 10 kg of solvent B. Solvent A and B are completely immiscible in each other whereas ... (C) Less than 1 kg of C is transferred to B (D) No amount of C is transferred to B
Last Answer : (A) The entire amount of C is transferred to solvent B
Description : Pick out the wrong statement. (A) At constant pressure, solubility of a gas in a liquid diminishes with rise in temperature (B) Normally, the gases which are easily liquefied are more soluble ... (D) At constant pressure, solubility of a gas in a liquid increases with rise in temperature
Last Answer : (A) At constant pressure, solubility of a gas in a liquid diminishes with rise in temperature
Description : Mid morning application of which of the herbicides is better than its evening applica tion a). Butachlor b). Alachlor c). Glyphosate d). Paraquat
Last Answer : d). Paraquat
Description : How many times atrazine is more soluble than simazine? a). 1 b). 2 c). 4 d). 6
Last Answer : d). 6
Description : Which of the weeds are rapidly controlled by MCPA than 2,4-D a). Nutsedge b). Canada thistle c). Both d). None
Last Answer : c). Both
Description : In which of the weed the underground sys tem is located deeper than one metre? a). Cyperus rotundus b). Sorghum halepense c). Pluchea lanceolata d). All of these
Description : Which among the following bioherbi cide has control efficiency more than 90 per cent? a). Collego b). Devine c). CASST d). Biomal
Last Answer : a). Collego
Description : Pick out the wrong statement regarding the solubility characteristics of high polymers. (A) Greater the degree of cross-linking in the polymer, lesser is its solubility (B) Polymers having more ... of the solvent (D) High molecular weight polymers on dissolving gives solution of very low viscosity
Last Answer : (D) High molecular weight polymers on dissolving gives solution of very low viscosity
Description : Neoprene which is used for making shoe heels & belts is superior to natural rubber in its stability to aerial oxidation and resistance to oils & other solvents. The monomer used for making neoprene is (A) Chloroethane (B) Chloroprene (C) Isoprene (D) None of these
Last Answer : (B) Chloroprene
Description : A solute distributes itself between two non-miscible solvents in contact with each other in such a way that, at a constant temperature, the ratio of its concentrations in two layers is constant, irrespective of ... B) Followed from Margules equation (C) A corollary of Henry's law (D) None of these
Last Answer : (A) The distribution law
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
Description : A ceremonial weed a). Asparagus racemosus (Shatawari) b). Cynodon dactylon (Dhoob ghaas) c). Nelumbo nucifera (Lotus flower) d). All of these
Description : A ceremonial weed a). Asparagus racemosus (Shatawari) b). Cynodon dactylon (Dhoob ghaas) c). Both a and b d). Digitaria sanguinalis
Last Answer : c). Both a and b
Description : To manage grassy weed flora in barley which of the herbicides is to be applied a). Pendimethalin b). Isoproturon c). a and b d). Metsulfuron
Last Answer : c). a and b
Description : Which of the herbicides can be used in gram crop? a). Pendimethalin b). Metolachlor c). Fluchloralin d). All
Description : To manage mixed weed flora in barley which of the herbicides is to be applied a).2,4-D b). Isoproturon c). a and b as tank mix d). None of these
Last Answer : c). a and b as tank mix