Entomology Chemical control
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Question No. 1
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Who discovered the insecticidal properties of DDT?
A.
Louis Pasteur
B.
Paul Muller
C.
Rachel Carson
D.
Paul De Bach
Question No. 2
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In which year was DDT first banned in India?
A.
1972
B.
1989
C.
1962
D.
1951
Question No. 3
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The pure chemical name of BHC is:
A.
Hexa-Cyclo-Hexane (HCH)
B.
Boron hexachloride
C.
Hexamethane
D.
Carbonyl chloride
Question No. 4
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The trade name of Endosulfan (35 EC) is:
A.
Kelthane
B.
Confidor
C.
Sevin
D.
Thiodon
Question No. 5
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Dicofol (18.5 EC) is commercially known as:
A.
Confidor
B.
Kelthane
C.
Ekalux
D.
Cythion
Question No. 6
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Which organophosphate’s trade name is ‘Vapon’?
A.
DDVP/Dichlorvos
B.
Monocrotophos
C.
Quinolphos
D.
Chlorpyriphos
Question No. 7
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Monocrotophos (36 SL) is marketed as:
A.
Cythion
B.
Asataf
C.
Nuvacron
D.
Rogor
Question No. 8
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Malathion (50 EC) is sold under the trade name:
A.
Cythion
B.
Rogor
C.
Metacid
D.
Temik
Question No. 9
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Dimethoate (30 EC) is also called:
A.
Vertimac
B.
Rogor
C.
Tracer
D.
Baygon
Question No. 10
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Which organophosphate is sold as ‘Metacid’?
A.
Phorate
B.
Ronnel
C.
Methyl parathion
D.
Carbaryl
Question No. 11
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Chlorpyriphos (20 EC) is commonly called:
A.
Nuvacron
B.
Dermate
C.
Confidor
D.
Padan
Question No. 12
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Quinolphos (25 EC) is known as:
A.
Ekalux
B.
Tracer
C.
Thiodon
D.
Sevin
Question No. 13
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Acephate (75% SP) is commercialized as:
A.
Baygon
B.
Vertimac
C.
Asataf
D.
Confidor
Question No. 14
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Phorate (10 G) has the trade name:
A.
Thimet
B.
Kelthane
C.
Sevin
D.
Tracer
Question No. 15
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Which organophosphate is an excellent animal systemic insecticide?
A.
Acephate
B.
Ronnel
C.
Malathion
D.
Phosphamidon
Question No. 16
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Carbaryl 75 WP is marketed as:
A.
Temik
B.
Sevin
C.
Baygon
D.
Tracer
Question No. 17
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Carbofuran 3G is sold under the name:
A.
Lannate
B.
Confidor
C.
Furadon
D.
Metacid
Question No. 18
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Aldicarb 10 G is known commercially as:
A.
Baygon
B.
Furadon
C.
Temik
D.
Kelthane
Question No. 19
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The trade name of Methomyl 40 SP is:
A.
Lannate
B.
Padan
C.
Tracer
D.
Cythion
Question No. 20
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Which carbamate insecticide is named ‘Baygon’?
A.
Carbaryl
B.
Carbofuran
C.
Propoxur
D.
Acephate
Question No. 21
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Which plant produces Rotenone?
A.
Chrysanthemum
B.
Lonchocarpus roots
C.
Nicotiana roots
D.
Neem leaves
Question No. 22
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Pyrethrum is extracted from flowers of:
A.
Neem
B.
Chrysanthemum cinerarifolium
C.
Tobacco
D.
Lonchocarpus
Question No. 23
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Neem-based insecticide Azadirachtin is obtained from:
A.
Chrysanthemum
B.
Nicotiana
C.
Lonchocarpus
D.
Azadirachta indica
Question No. 24
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Nicotine insecticide is derived from:
A.
Nicotiana
B.
Neem
C.
Chrysanthemum
D.
Lonchocarpus
Question No. 25
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Imidacloprid, a neonicotinoid, is marketed as:
A.
Kelthane
B.
Tracer
C.
Confidor
D.
Lannate
Question No. 26
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Thiamethoxam is marketed as:
A.
Cruiser and Actara
B.
Tracer
C.
Asataf
D.
Regent
Question No. 27
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Which neonicotinoid insecticide has trade name ‘Pride’?
A.
Fipronil
B.
Cartap
C.
Acetamiprid
D.
Quinolphos
Question No. 28
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Spirotetramat belongs to which chemical subclass?
A.
Phenyl pyrazoles
B.
Carbamates
C.
Oxadiazines
D.
Tetramic acid derivatives
Question No. 29
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The action of Spirotetramat involves inhibition of:
A.
Acetylcholine esterase
B.
DNA polymerase
C.
Acetyl CoA carboxylase
D.
Lipase
Question No. 30
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Indoxacarb (Oxadiazine group) has trade name:
A.
Tracer
B.
Confidor
C.
Avaunt
D.
Ekalux
Question No. 31
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Fipronil (Phenyl pyrazole) is marketed as:
A.
Avaunt
B.
Regent
C.
Nuvacron
D.
Sevin
Question No. 32
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Abamectin, derived from microbes, is sold as:
A.
Thiodon
B.
Vertimac
C.
Tracer
D.
Confidor
Question No. 33
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Spinosad, a microbial insecticide, is called:
A.
Tracer
B.
Baygon
C.
Temik
D.
Kelthane
Question No. 34
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Neries toxin was isolated from:
A.
Chrysanthemum
B.
Neem
C.
Marine annelid Lumbrineris heteropoda
D.
Lonchocarpus root
Question No. 35
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A synthetic derivative of Neries toxin is:
A.
Confidor
B.
Cartap hydrochloride
C.
Pyrethrum
D.
Azadirachtin
Question No. 36
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Which insecticide is systemic in animals as well as plants?
A.
Carbofuran
B.
Imidacloprid
C.
Acephate
D.
Ronnel
Question No. 37
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Phosphamidon (systemic insecticide) is marketed as:
A.
Dermate
B.
Confidor
C.
Dimecron
D.
Sevin
Question No. 38
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Oxydemeton methyl has the trade name:
A.
Tracer
B.
Confidor
C.
Metasystox R
D.
Rogor
Question No. 39
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Toxicity order among insecticides is:
A.
Methoprene > Permethrin > Methoxychlor > Malathion
B.
Phorate > Dimeton > Parathion > Aldicarb
C.
Endosulfan > Methoprene > Sevin > Locustol
D.
Parathion > Malathion > BHC > Rotenone
Question No. 40
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Which is the safest order of insecticides?
A.
Permethrin > Malathion > Methoxychlor > Methoprene
B.
Endosulfan > Methoprene > Sevin > Confidor
C.
Methoprene > Permethrin > Methoxychlor > Malathion
D.
DDT > Malathion > Aldicarb > Phorate
Question No. 41
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Maximum Residue Limit (MRL) is expressed in:
A.
ml/kg crop juice
B.
g/hectare
C.
mg/kg body weight
D.
ppm per hectare area
Question No. 42
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Acephate and Cartap are examples of:
A.
Botanicals
B.
Pro-pesticides
C.
Sterilants
D.
Herbicides
Question No. 43
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The principle device used in dusters is:
A.
UV lamp
B.
Fan or blower
C.
Rotary drum
D.
High pressure pump
Question No. 44
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Efficiency of dusting compared to spraying:
A.
10 times more
B.
Equal
C.
10 times less
D.
Depends only on crop
Question No. 45
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Which application gives particle size of 400 μm or more?
A.
Mist
B.
Fog
C.
Coarse spray
D.
Smoke
Question No. 46
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Fine spray droplets are in the size range:
A.
100–400 μm
B.
1–50 μm
C.
0.01–0.1 μm
D.
50–150 μm
Question No. 47
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Mist sprays are characterized by droplet size:
A.
0.001–0.1 μm
B.
50–150 μm
C.
400 μm or more
D.
1–50 μm
Question No. 48
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Fog type spray droplets measure:
A.
100–400 μm
B.
1–50 μm
C.
>400 μm
D.
0.001–0.1 μm
Question No. 49
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Smoke droplet size in plant protection is:
A.
100–400 μm
B.
1–50 μm
C.
0.001–0.1 μm
D.
50–150 μm
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