TNPSC Exam- Agriculture Officers Exam held on 2012-Part 3
51. The major diseases of sorghum crop are
A)
Grain mold
B)
Rust
C)
Downy mildew
D)
All the above
Answer: D
52. Pungency in Onion is due to
A)
Anthocyanins
B)
Allyl di Sulphide
C)
Caffeine
D)
Colchicine
Answer: B
53. Bacterial blight of rice is caused by
A)
Xanthomonas cajani
B)
Xanthomonas oryzae
C)
Xanthomonas
campestris
D)
None of the above
Answer: B
54. Match the following using the codes:
List I List
II
(a)
Citrus canker 1. Virus
(b)
Late blight of
Potato 2. Algae
(c)
Bunchy top of
banana 3. Bacteria
(d)
Red rust tea 4. Fungi
Codes:
a b c d
A) 3 4 1 2
B) 4 1 3 2
C) 1 2 4 3
D) 2 3 1 4
Answer: A
55. In India, potassic fertilizers are
manufactured at
A)
Tamil Nadu
B)
Karnataka
C)
Andhra Pradesh
D)
None of the above
Answer: D
56. Ooty- l garlic is resistant to
A)
Aphid
B)
Thrips
C)
Jassid
D)
Mealy bug
Answer: B
57. The major approaches in plant disease
control are
A)
Exclusion
B)
Eradication
C)
Protection
D)
All the above
Answer: D
58. San Jose Scale is an example of
A)
Regular Pest
B)
Exotic Pest
C)
Endemic Pest
D)
None of the above
Answer: B
59. Rice variety resistant to BPH is
A)
ADT 39
B)
ADT (R) 45
C)
ADT 38
D)
IR50
Answer: B
60. Storage pests are controlled by
A)
Termination
B)
Fumigation
C)
Elimination
D)
Fertigation
Answer: B
61. The most commonly used organic pesticide
used to control sucking pests.
A)
Castor Oil
B)
Neem Oil
C)
Pungam Oil
D)
Mahua Oil
Answer: B
62. The antagonistic fungus used in crop disease
management is
A)
Sclerospora
B)
Trichoderma
C)
Trichogramma
D)
Zygogramma
Answer: B
63. An Internal feeder of Legume seed is
A)
Red flour beetle
B)
Cigarette beetle
C)
Pulse beetle
D)
Khapra beetle
Answer: C
64. Shortening in bhendi is due to the
deficiency of
A)
Fe
B)
B
C)
N
D)
P
Answer: B
65. Aphids are the vectors of
i.
Banana bunchy top
ii.Brinjal little leaf
iii.
Cardamom mosaic
iv.
Cowpea mosaic
A)
i, ii and iii of
the above
B)
i, ii and iv of
the above
C)
i, iii and iv of
the above
D)
All of the above
Answer: C
66. Rice Tungro virus is transmitted by
A)
Blue leaf hopper
B)
Brown plant hopper
C)
Green leaf hopper
D)
White leaf hopper
Answer: C
67. Universal antidote is a mixture of
A)
Charcoal &
Lime
B)
MgO & Charcoal
C)
Activated Charcoal
& talc
D)
Activated
Charcoal; tannic acid & MgO
Answer: D
68. Which one of the following is the vector of
bhendi vein clearing desease?
A)
Aphid
B)
Leafhopper
C)
Mealy bug
D)
Whitefly
Answer: D
69. Central Food Technology Research Institute
(CFTRI) is located at
A)
New Delhi
B)
Bangalore
C)
Mysore
D)
Mumbai
Answer: C
70. Statement (A): Synthetic pyrethroids are
effective against cotton bollworms.
Statement (B): Synthetic pyrethroids
often induce resurgence of white flies.
A)
Statement (A) is
true but (B) is false.
B)
Statement (A) is
false but (B) is true.
C)
Both Statements
(A) and (B) are false.
D)
Both Statements
(A) and (B) are true.
Answer: D
71. Herbicide recommended for Maize + Blackgram
intercropping system
A)
Pendimethalin
B)
Isoproturon
C)
Atrazine
D)
Butachlor
Answer: A
72. The volume of spray fluid required under
high volume spray is
A)
200 – 300 lit/ac
B)
300 – 400 lit/ac
C)
400 – 500 lit/ac
D)
500 – 600 lit/ac
Answer: B
73. Which of the
following crops is the maximum consumer of pesticides in Tamilnadu?
A)
Coffee
B)
Grapes
C)
Paddy
D)
Sugarcane
Answer: B
74. Pesticide residues can be measured using
A)
GLC
B)
Flame photometer
C)
Mass spectrometer
D)
Colorimeter
Answer: A
75. Flat Fan Nozzles are exclusively used for
spraying
A)
Insecticides
B)
Fungicides
C)
Herbicides
D)
All the above
Answer: C
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