| Post Name | Soil Survey Officer/ Research Assistant/ Cartographer/ Technical Assistant, Assistant Manager (Extension and Procurement) - Soil Survey and Soil Conservation, KERAFED |
|---|---|
| Question Paper Code | 002/2024 |
| Category Code | 031/2023, 183/2023 |
| Date of Test | 4 January 2024 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
(i) The term agronomy is derived from Latin words.
(ii) The meaning of ‘agros’ is field and ‘nomos’ is to manage.
Answer
B. only (ii) is correct
2
At physiological maturity the moisture percentage of grains is about –––––––––– per cent.
Answer
B. 20
3
Justus Von Liebig in 1862 proposed the :
Answer
A. Law of minimum
4
(i) The growth curve of individual organs of a whole plant is sigmoidal.
(ii) The lag phase is called exponential phase.
Answer
A. only (i) is correct
5
The concept of minimum tillage was started in :
Answer
C. USA
6
(i) The deficiency symptoms of Ca and B in plants appear on the younger leaves.
(ii) Ca and B are immobile in plants.
Answer
C. both (i) and (ii) are correct
7
(i) Bulky organic manures contain small percentage of nutrients.
(ii) Oil cake is an example for a bulky organic manure.
Answer
A. only (i) is correct
8
The nursery area required for transplanting 1 ha of rice is :
Answer
C. 1000 m2
9
Cultural method recommended for the management of weedy rice is :
Answer
B. Stale seed bed
10
Bush type cowpea variety released from Kerala Agricultural University :
Answer
C. Bhagyalakshmi
11
Multiplication ratio of minisett planting technique of tapioca is :
Answer
C. 1:60
12
The soil moisture tension at field capacity is –––––––––– bars.
Answer
A. 0.1 to 0.33
13
The ratio of crop yield to the amount of water depleted by crop plants through
evapo-transpiration :
Answer
B. Crop water use efficiency
14
Expand LEISA :
Answer
B. Low External Input and Sustainable Agriculture
15
Family of sesamum is :
Answer
D. Pedaliaceae
002/2024 4 A
16
In land capability classification, lands which are level with deep, well-drained soils and
therefore little or no limitations on agricultural uses are classified under :
Answer
A. Class-I
17
The velocity or speed at which water enters the soil is :
Answer
C. Infiltration rate
18
In dryland agriculture, the addition of lesser amounts of water to rainfed crops in periods of
low rainfall shall include
Answer
C. hoose the best answer among the options) :
19
The three-step process of soil erosion by water begins with the impact of raindrops on wet soil
followed by :
Answer
A. Detachment, transport and deposition
20
After routine soil testing for organic carbon, available P and K in state government-controlled
laboratories, soil test value-based rating soils is done following :
Answer
A. 10-class system, numbered from 0 to 9 as class notation
21
Universal soil loss equation Q = R * K * L * S * C * P. Where, Q is the predicted annual soil
loss, and * is the multiplication symbol. Considering the other symbols, which of the
following statement/statements is or are true?
(1) R = rainfall erosivity, K = soil erodibility, L = slope length, S = slope gradient or
steepness, C = Cover, management and P = erosion-control practices
(2) R = total rainfall, K = soil texture, L = slope length, S = slope gradient or steepness,
C = cation exchange capacity and P = available phosphorous
(3) R = rainfall erosivity, K = soil bulk density, L = slope length, S = slope gradient or
steepness, C = cover, management and P = penetrability of the soil
(4) By management practices if any one factor in the equation is brought to zero, the
resulting anoint of erosion (Q) would also be reduced to zero.
Answer
C. 1 and 4 are correct
22
If the elevation difference is 70 mover a horizontal distance of 100 m, then :
(1) the slope gradient is 10%.
(2) The slope angle is approximately 35°.
Answer
C. (1) and (2) are correct
23
The nano fertilisers should have a size dimension of :
(1) Less than 100 nm at least in one-dimension
(2) Less than 100 nm in two-dimensions
(3) More than 200 nm in all three dimensions.
Answer
C. 1 and 2 are correct
24
In a dry farming situation, the recommended set of crops may be :
(1) Pennesitum americanum, Cajanus cajan, Moringa oleifera,
(2) Oryza sativa, Lycopersicon esculentum (Mill.)
Answer
A. 1 is correct and 2 is wrong
25
In a dry farming situation, crop scouting in precision farming may be conducted with the
help of :
(1) Scintillation counter
(2) Global positioning System
(3) Unmanned aerial vehicle
(4) Yoders’ apparatus
Answer
D. 1 and 3 are correct.
26
In Site-specific nutrient management (SSNM) :
(1) Soil test-based crop response-based targeted yield equations can be used in SSNM.
(2) Jhuming cultivation is a part of SSNM.
(3) In SSNM, soil-based, or plant-based approaches may be followed.
(4) Free flooding and border irrigation methods are essential components of SSNM.
Answer
D. 1 and 3 are correct
27
Agronomic measures of soil and water conservation may be included :
(1) Contour farming, conservation tillage, mulching, dense cropping, strip cropping and
mixed cropping.
(2) Contour bunding, contour trenching, bench terracing and graded bunding
Answer
A. 1 alone is correct.
28
(1) The occurrence of abundant root nodules in clumps or root bunches was noticed in
Casuarina equisetifolia.
(2) Casuarina equisetifolia is an effective wind break.
(3) Rhizobium is associated with nodulation which helps in nitrogen fixation in Casuarina
equisetifolia.
Answer
C. (1) and (2) are correct
29
(1) The top-down method of nanoparticle synthesis involves condensation of atoms in the
gas phase or molecular phase or solution allowing for the precursor particle to grow into
the size of a nanoparticle.
(2) In the bottom-up approach nanoparticles are synthesized by massive solid into smaller
portions till the nano-sized particles are obtained.
Answer
D. All the above options are wrong
30
(1) In conventional tillage, a moldboard plough inverts the upper soil horizon, burying all
plant residues and producing a bare soil surface.
(2) A chisel plough, one type of conservation tillage implement, stirs the soil but leaves a
good deal of Crop residues.
(3) An equipment, “no-till planter’s rolling furrow openers” cut the slot for planting
through the mulched residue of the earlier crop and soil into which the seed is planted
at a depth set by the dept wheel of the equipment.
Answer
B. (1), (2) and (3) are correct
31
A desirable choice to reduce runoff trap eroded soil materials and stabilize slopes :
Answer
C. Vetiver planting along the border of the slope
32
Straw checkerboard mulching, Stubble mulching, transposing, planting, paving, and
mulching are done before planting to enhance :
Answer
B. Stabilize sandunes
33
A 400 cm3 oven dry core has a bulk density of 1.2 g/cm3. After water saturation oven-dry soil
weighs 680 grams, with a “pore volume to total volume ratio of 0.5”. The total soil porosity is :
Answer
C. 50%
34
Nano-porous materials can store water in the soil during the rainfall season and release it
during drought stress. Examples are :
Answer
B. Nano hydrogels and zeolites
35
A nano nitrogenous fertilizer with grade 4:0:0 available in the market is applied to the rice
crop at the rate of 1000 ml per ha of the formulation. If so, what is the quantity of N applied
to the crop?
Answer
C. 40 g
36
Which of the following microbes have insecticidal activity :
(i) Pasteuria penetrans
(ii) Arthrobotrys dactyloides
(iii) Paecilomyces lilacinus
(iv) Bacillus thuringiensis
Answer
B. Only (iv)
37
Leaf webs found through out the season in mango is due to infestation of :
Answer
C. Orthaga exvinacea
38
Match List I with List II :
List I List II
Answer
B. Brown plant hopper (2) Oecophylla smaragdina
39
The plant from which botanical insecticide Pyrethrum is obtained :
Answer
A. Chrysanthemum cinerariaefolium
40
Statement (i) Fenvalerate is a synthetic pyrethroid.
Statement (ii) Phosalone is a bio pesticide.
Statement (iii) The insecticide spinosad is derived from actinomycetes.
Answer
A. Statement (i) and (iii) correct; statement (ii) wrong
41
Match List I with List II :
List I List II
Answer
D. Pineapple wilt associated virus (4) Toxoptera citricida
42
Statement (i) T-toxin is a selective toxin produced by Helminthosporium maydis.
Statement (ii) Fumaric acid is a non selective toxin produced by Rhizopus spp.
Statement (iii) Zinniol is a non selective toxin produced by Ceratocystis ulmi.
Answer
C. Statement (i) and (ii) correct; Statement (iii) wrong
43
Which of the following is the parapheromone used for monitoring fruit fly in bittergourd :
Answer
B. cuelure
44
Application of sawdust/paddy husk at 500 g /plant in bhindi is useful against :
Answer
D. Nematodes
45
Simulation model for blast disease of rice :
Answer
C. EPIBLAST
46
Genes which offers resistance against wheat blast disease :
Answer
B. Rmg8
47
Precursor of Salisilic Acid in SAR :
Answer
D. Chorismate
48
Which of the following is not a phytoalexin produced in cow pea?
Answer
C. Rishitin
49
A disease having domestic quarantine regulation in India :
Answer
B. Bunchy top of banana
50
First discovered triazole fungicide :
Answer
B. Triadimefon
51
Coconut variety having resistance to root (wilt) :
Answer
C. Kalpa Sree
52
Which of the following PR-protein families have chitinase property?
(i) PR 1
(ii) PR 2
(iii) PR 3
(iv) PR 4
Answer
C. (iii) and (iv)
53
Which of the following fungicide is effective against mites?
Answer
D. Karathane
54
The secretion system in plant pathogenic bacteria for host pathogen interaction :
Answer
A. TSS III
55
An antibiotic which can inhibits wall synthesis in bacteria :
Answer
D. Penicillin
56
‘Spongy tissue’ is a disorder in which -mango variety :
Answer
D. Alphonso
57
Polyploidy can be induced by application of :
Answer
B. Colchicine
58
India is the largest producer of which of these two crops :
Answer
C. Okra and ginger
59
Tag color for foundation seed is :
Answer
A. White
60
The most suitable temp. for colour development in carrot is :
Answer
B. 15-21°C
61
Panchami is a variety of which of the following crop?
Answer
C. Black pepper
62
Sprouting of onion bulbs in storage can be prevented by spraying which of the following?
Answer
A. MH 2500 ppm 2 weeks before harvest
63
Tropism in plants is controlled by which phytohormone?
Answer
D. Auxin
64
The National Biodiversity Authority (NBA) is located at :
Answer
D. Chennai
65
The parents of coconut hybrid ‘Kerasankara’ are :
Answer
A. WCT x COD
66
Vengurla 1 is a cultivar of :
Answer
D. Cashew nut
67
The practice of controlled hydration treatment to the seed is called :
Answer
D. Seed Priming
68
Pusa Early bunching is a variety of :
Answer
C. Fenugreek
69
Conservation of germplasm under natural habitat is referred to :
Answer
B. In-situ Conservation
70
Seeds which can be dried to low moisture content and stored at low temperature are
known as :
Answer
A. Orthodox seeds
71
IISR Varada is a variety of :
Answer
B. Ginger
72
Long term conservation in seed gene banks is at what temperature :
Answer
C. -18 or -20°C
73
In mutation substitution of a purine by a pyrimidine and vice versa is called :
Answer
B. Transversion
74
Triticale a man-made cereal is as an artificially synthesized :
Answer
A. Allopolyploid
75
Types of Vegetable gardens were suggested by :
Answer
C. Thompson and Kelly
76
Typha grass roots are used in which type of vegetable garden :
Answer
D. Floating garden
77
PPVFR Act was enacted in :
Answer
C. 2001
78
Seedless watermelon is
Answer
C. Triploid
79
The economic part of the medicinal Coleus forskohlii is :
Answer
B. Tuberous roots
80
The major component of Rosemary oil is :
Answer
A. 1, 8 cineole
81
‘Stone grafting’ is also known as :
Answer
B. Epicotyl grafting
82
Ultra dwarfing rootstock of apple is :
Answer
B. M-27
83
‘Marcottage’ is another term for :
Answer
C. Air layering
84
Kokkan disease is caused by :
Answer
C. Virus
85
Whiptail of Cauliflower is caused by :
Answer
C. Molybdenum deficiency
86
There is a decrease in the demand for a commodity when the price of a substitute commodity
increases :
Answer
B. False
87
In a market with perfect competition, the firms are :
Answer
B. Price takers
88
–––––––––– can be measured by the area under the demand curve and above the commodity
price.
Answer
B. Consumer’s surplus
89
Consumer utility maximisation is satisfied by the condition that :
Answer
C. MU_x/P_x = MU_y/P_y
90
Geographical market segmentation is a sub-set of :
Answer
A. Demographic market segmentation
91
Decreasing costs of a firm refer to the situation wherein :
Answer
B. Output increases proportionately more than the inputs
92
A product pricing strategy by which a firm charges the highest initial price that customers
will pay and then lowers it over time :
Answer
B. Price skimming
93
Companies that have patents or extensive research and development costs such as
pharmaceutical companies are considered as :
Answer
A. Natural Monopolies
94
A programme initiated with an objective to enhance the resilience of Indian agriculture
covering crops, livestock and fisheries to climatic variability and climate change through
development and application of improved production and risk management technologies :
Answer
C. NICRA
95
What is the meaning of the term economists use “ceteris paribus”?
Answer
B. All the other independent variables affecting the dependent variable are held
constant
96
Marginal cost equals :
Answer
C. Both of these
97
The process of determining the extent to which we have been able to attain our objectives in
extension programme planning :
Answer
C. Evaluation of progress
98
Demand and pricing for the products in monopolistic competition is :
Answer
B. Highly elastic, price makers
99
Costs that vary directly with the level of output :
Answer
C. Total Variable costs
100
An organisation created from a formal agreement between a group of producers of a good or
service to control supply or to regulate or manipulate prices :
Answer
B. Cartel
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