FISHERIES SCIENCE- PAGE 13
1. ———- are the non-flowering and multicellular macroalgae.
(A) Diatoms (B) Dinoflagellates (C ) Seaweeds (D) Salt marshes
Ans: C
2. Paralytic Shellfish Poisoning (PSP) is caused by one of the following harmful bloom forming algal species
(A) Noctiluca scintillans
(B) Alexandrium fundyanse
(C) Coscinodiscus gigas
(D) Rhizosolenia alata
Ans: B
3. Which one of the following disease is caused due to the cadmium heavy metal poisoning?
(A) Minamata disease
(B) Brown blood disease
(C ) Itai-Itai disease
(D) Black lung disease
Ans: C
4. Tide that exhibits the greatest change in dimension between the highest high and lowest low tide marks is known as
(A) spring tide (B) neap tide
(C) red tide (D) yellow tide
Ans: A
5. The depth at which the amount of oxygen produced equals the amount of oxygen consumed is known as
(A) compensation depth (B) critical depth
(C) oxygen minimum zone (D) productive zone
Ans: A
6. _____are tropical flowering rooted plants that grow in sandy and muddy coastal areas that are protected from wave action and have high sedimentation rates.
(A) Seagrasses (B) Mangroves (C) Seaweeds (D) Salt marshes
Ans: B
7. In the ecosystem, herbivores act as
(A) Autotrophs (B) Primary consumers
(C) Secondary consumers(D) None of these
Ans: B
8. Which of the following is not a feed binding agent?
(A) Agar agar
(B) Wheat flour
(C) Rice flour
(D) Rice bran
Ans: D
9. Which of the following is not a direct cause of fish mortality?
(A) Fishing
(B) Disease
(C) Predation
(D) Non-availability of food
Ans: D
10. Herbivore fishes have a
(A) Short intestine
(B) True stomach
(C) Long intestine
(D) Wide intestine
Ans: C
11. Which one of them is not a indirect method for population estimation?
(A) Regression method
(B) Age frequency method
(C) Actual count method
(D) Mark and recapture method
Ans: C
12. Gonadotropins are produced by
(A) Ovary
(B) Hypothalamus
(C) Pituitary gland
(D) Blood
Ans: C
13. Lentic habitat pertains to
(A) Rivers (B) Estuaries(C) Oceans(D) Lakes
Ans: D
14. The types of teeth in fishes which found other than Jaws are
(A) 3 types
(B) 4 types
(C) 2 types
(D) 5 types
Ans: B
15. Length weight relationship was given by
(A) LeCern
(B) Alagaraja
(C) Fulton
(D) Pauly
Ans: A
16. The study of morphometric characters is known as
(A) Studying hard parts
(B) Counting of scales
(C) Counting of fin rays
(D) Measurements of body and its parts
Ans: D
17. In eutrophic water body, the mass mortality of fish occur due to
(A) Shortage of food
(B) High level of temperature
(C) Low level of oxygen
(D) All of these
Ans: C
18. Fish produced in the same year is known as
(A) Year class
(B) Age group
(C) Recruitments
(D) None of these
Ans: A
19. Formula for estimation of natural mortality of fish was given by
(A) Ricker
(B) Beverton
(C) Gullund
(D) Pauly
Ans: A
20. The pituitary glands are generally stored in
(A) Glycerine
(B) Alcohol
(C) Water
(D) Acid
Ans: B
21. Dopamine antagonist present in ovatide is
(A) Pimozide
(B) Domperidone
(C) Tamoxifen
(D) None of these
Ans: A
22. One of the following is example for chlorophyceae
(A) Microcystis
(B) Volvox
(C) Navicula
(D) Paranema
Ans: B
23. The number of barbels in Ompok pabda is
(A) 2
(B) 4
(C) 6
(D) 8
Ans: B
24. The copulatory organ in cephalopods is known as _______
(A) Hectocotylus (B) Petasma (C) Gonopodium (D) Needham’s sac
Ans: A
25. Each compound eye of crustacean is formed of several visual units called _______
(A) Statocyst (B) Ommatidia (C) Ostia (D) Ossicles
Ans: B
26. One of the following methods is not used to combine the DNA segments.
(A) Gibson assembly (B) Amplification (C) Ligase cloning (D) Restriction enzyme
Ans: B
27. In the fin formula D II 3, ‘II’ denotes the number of _______
(A) rays (B) sharp spines (C) weak spines (D) dorsal fins
Ans: B
28. Marine Turtles are endangered species which are protected under schedule I of _________ act.
(A) TED act (B) BRD act (C) MFRA (D) Wild Life Protection act
Ans: D
29. National Fish Farmer's day is celebrated on
(A) 10 July
(B) 10 November
(C) 21 July
(D) 21 November
Ans: A
30. Integrated Development and Management of Fisheries comes under
(A) Green Revolution
(B) Pink Revolution
(C) Blue Revolution
(D) White Revolution
Ans: C
31. Marakanam estuary is located in
(A) Tamilnadu
(B) Kerala
(C) Maharashtra
(D) West Bengal
Ans: A
32. The scientific name of edible oyster is
(A) Perna viridis
(B) Perna indica
(C) Crossostrea madrasensis
(D) Acetus
Ans: C
33. Agar, carrageenan and sodium alginate are extracted from
(A) Crab shell
(B) Sea-weeds
(C) Oyster
(D) Shrimp
Ans: B
34. One of the following seaweeds is consumed by human beings due to the presence of proteins
(A) Gracilaria
(B) Mola
(C) Najas
(D) Marsilia
Ans: A
35. The common name of Lates calcarifer is
(A) Mullet
(B) Sea-bass
(C) Mackerel
(D) Anchovy
Ans: B
36. In which fish body sub-cylindrical up to pelvic compressed behind, head depressed, mouth small terminal, dorsal fin short inserted above tip of pectoral fin, pectoral with a strong a strong spine and anal fin long—based is
(A) Ompok pabda
(B) Wallago attu
(C) Clarias batrachus
(D) Heteropneustes fossilis
Ans: D
37. The blue green algae are also known as
(A) Bacillariophyceae
(B) Cyanobacteria
(C) Rhodophyceae
(D) Chlorophyceae
Ans: B
38. Nitrates in a water sample can be measured with
(A) Wrinkler method
(B) Brucine method
(C) Stannous -chloride method
(D) Muroxide method
Ans: B
39. The transitions zone between two ecosystems known as
(A) Biome
(B) Ecotone
(C) Niche
(D) Ecosen
Ans: B
40. Minamata disease in Japan is caused due to the pollutant
(A) Cadmium
(B) Mercury
(C) Lead
(D) Cobalt
Ans: B
41. Ising glass is the byproduct from
(A) Liver
(B) Scales
(C) Air bladder
(D) Mussels
Ans: C
42. Fish liver oils are rich in _________vitamins.
(A) A,B
(B) B, C
(C) C, D
(D) A, D
Ans: D
43. The common name of Ctenopharyngodon idella
(A) Silver cap
(B) Scale carp
(C) Grass carp
(D) Big head carp
Ans: C
44. Common name of Cyprinus carpio var. specularis
(A) Scale carp
(B) Mirror carp
(C) Leather carp
(D) Mud carp
Ans: B
45. Largest fresh water prawn is
(A) Macrobrachium rosenbergii
(B) M. malcolmsonii
(C) Palaemon tenuipes
(D) Penaeus monodon
Ans: A
46. Name the fish which has fringed lower lip
(1) Labeo
(2) Anguilla
(3) Exocoetus
(4) Harpdon
Ans: A
47. Leptocephalus is larval form of the following fish
(A) Salmon
(B) Anguilla
(C) Angle fish
(D) Sturgeons
Ans: B
48. One of the following fishes is mouth breeder
(1) Kurtus
(2) Xenantodon
(3) Oreochromis
(4) Salmon
Ans: C
49. One of the following fishes protects by entangle the egg mass on a hook like process on head
(1) Macropodus
(2) Lepidosiren
(3) Amia
(4) Kurtus
Ans: D
50. Name the fish which the eggs protected inside the integumentary cups
(1) Platystacus
(2) Alytes
(3) Arius
(4) Macropodus
Ans: A
(A) Diatoms (B) Dinoflagellates (C ) Seaweeds (D) Salt marshes
Ans: C
2. Paralytic Shellfish Poisoning (PSP) is caused by one of the following harmful bloom forming algal species
(A) Noctiluca scintillans
(B) Alexandrium fundyanse
(C) Coscinodiscus gigas
(D) Rhizosolenia alata
Ans: B
3. Which one of the following disease is caused due to the cadmium heavy metal poisoning?
(A) Minamata disease
(B) Brown blood disease
(C ) Itai-Itai disease
(D) Black lung disease
Ans: C
4. Tide that exhibits the greatest change in dimension between the highest high and lowest low tide marks is known as
(A) spring tide (B) neap tide
(C) red tide (D) yellow tide
Ans: A
5. The depth at which the amount of oxygen produced equals the amount of oxygen consumed is known as
(A) compensation depth (B) critical depth
(C) oxygen minimum zone (D) productive zone
Ans: A
6. _____are tropical flowering rooted plants that grow in sandy and muddy coastal areas that are protected from wave action and have high sedimentation rates.
(A) Seagrasses (B) Mangroves (C) Seaweeds (D) Salt marshes
Ans: B
7. In the ecosystem, herbivores act as
(A) Autotrophs (B) Primary consumers
(C) Secondary consumers(D) None of these
Ans: B
8. Which of the following is not a feed binding agent?
(A) Agar agar
(B) Wheat flour
(C) Rice flour
(D) Rice bran
Ans: D
9. Which of the following is not a direct cause of fish mortality?
(A) Fishing
(B) Disease
(C) Predation
(D) Non-availability of food
Ans: D
10. Herbivore fishes have a
(A) Short intestine
(B) True stomach
(C) Long intestine
(D) Wide intestine
Ans: C
11. Which one of them is not a indirect method for population estimation?
(A) Regression method
(B) Age frequency method
(C) Actual count method
(D) Mark and recapture method
Ans: C
12. Gonadotropins are produced by
(A) Ovary
(B) Hypothalamus
(C) Pituitary gland
(D) Blood
Ans: C
13. Lentic habitat pertains to
(A) Rivers (B) Estuaries(C) Oceans(D) Lakes
Ans: D
14. The types of teeth in fishes which found other than Jaws are
(A) 3 types
(B) 4 types
(C) 2 types
(D) 5 types
Ans: B
15. Length weight relationship was given by
(A) LeCern
(B) Alagaraja
(C) Fulton
(D) Pauly
Ans: A
16. The study of morphometric characters is known as
(A) Studying hard parts
(B) Counting of scales
(C) Counting of fin rays
(D) Measurements of body and its parts
Ans: D
17. In eutrophic water body, the mass mortality of fish occur due to
(A) Shortage of food
(B) High level of temperature
(C) Low level of oxygen
(D) All of these
Ans: C
18. Fish produced in the same year is known as
(A) Year class
(B) Age group
(C) Recruitments
(D) None of these
Ans: A
19. Formula for estimation of natural mortality of fish was given by
(A) Ricker
(B) Beverton
(C) Gullund
(D) Pauly
Ans: A
20. The pituitary glands are generally stored in
(A) Glycerine
(B) Alcohol
(C) Water
(D) Acid
Ans: B
21. Dopamine antagonist present in ovatide is
(A) Pimozide
(B) Domperidone
(C) Tamoxifen
(D) None of these
Ans: A
22. One of the following is example for chlorophyceae
(A) Microcystis
(B) Volvox
(C) Navicula
(D) Paranema
Ans: B
23. The number of barbels in Ompok pabda is
(A) 2
(B) 4
(C) 6
(D) 8
Ans: B
24. The copulatory organ in cephalopods is known as _______
(A) Hectocotylus (B) Petasma (C) Gonopodium (D) Needham’s sac
Ans: A
25. Each compound eye of crustacean is formed of several visual units called _______
(A) Statocyst (B) Ommatidia (C) Ostia (D) Ossicles
Ans: B
26. One of the following methods is not used to combine the DNA segments.
(A) Gibson assembly (B) Amplification (C) Ligase cloning (D) Restriction enzyme
Ans: B
27. In the fin formula D II 3, ‘II’ denotes the number of _______
(A) rays (B) sharp spines (C) weak spines (D) dorsal fins
Ans: B
28. Marine Turtles are endangered species which are protected under schedule I of _________ act.
(A) TED act (B) BRD act (C) MFRA (D) Wild Life Protection act
Ans: D
29. National Fish Farmer's day is celebrated on
(A) 10 July
(B) 10 November
(C) 21 July
(D) 21 November
Ans: A
30. Integrated Development and Management of Fisheries comes under
(A) Green Revolution
(B) Pink Revolution
(C) Blue Revolution
(D) White Revolution
Ans: C
31. Marakanam estuary is located in
(A) Tamilnadu
(B) Kerala
(C) Maharashtra
(D) West Bengal
Ans: A
32. The scientific name of edible oyster is
(A) Perna viridis
(B) Perna indica
(C) Crossostrea madrasensis
(D) Acetus
Ans: C
33. Agar, carrageenan and sodium alginate are extracted from
(A) Crab shell
(B) Sea-weeds
(C) Oyster
(D) Shrimp
Ans: B
34. One of the following seaweeds is consumed by human beings due to the presence of proteins
(A) Gracilaria
(B) Mola
(C) Najas
(D) Marsilia
Ans: A
35. The common name of Lates calcarifer is
(A) Mullet
(B) Sea-bass
(C) Mackerel
(D) Anchovy
Ans: B
36. In which fish body sub-cylindrical up to pelvic compressed behind, head depressed, mouth small terminal, dorsal fin short inserted above tip of pectoral fin, pectoral with a strong a strong spine and anal fin long—based is
(A) Ompok pabda
(B) Wallago attu
(C) Clarias batrachus
(D) Heteropneustes fossilis
Ans: D
37. The blue green algae are also known as
(A) Bacillariophyceae
(B) Cyanobacteria
(C) Rhodophyceae
(D) Chlorophyceae
Ans: B
38. Nitrates in a water sample can be measured with
(A) Wrinkler method
(B) Brucine method
(C) Stannous -chloride method
(D) Muroxide method
Ans: B
39. The transitions zone between two ecosystems known as
(A) Biome
(B) Ecotone
(C) Niche
(D) Ecosen
Ans: B
40. Minamata disease in Japan is caused due to the pollutant
(A) Cadmium
(B) Mercury
(C) Lead
(D) Cobalt
Ans: B
41. Ising glass is the byproduct from
(A) Liver
(B) Scales
(C) Air bladder
(D) Mussels
Ans: C
42. Fish liver oils are rich in _________vitamins.
(A) A,B
(B) B, C
(C) C, D
(D) A, D
Ans: D
43. The common name of Ctenopharyngodon idella
(A) Silver cap
(B) Scale carp
(C) Grass carp
(D) Big head carp
Ans: C
44. Common name of Cyprinus carpio var. specularis
(A) Scale carp
(B) Mirror carp
(C) Leather carp
(D) Mud carp
Ans: B
45. Largest fresh water prawn is
(A) Macrobrachium rosenbergii
(B) M. malcolmsonii
(C) Palaemon tenuipes
(D) Penaeus monodon
Ans: A
46. Name the fish which has fringed lower lip
(1) Labeo
(2) Anguilla
(3) Exocoetus
(4) Harpdon
Ans: A
47. Leptocephalus is larval form of the following fish
(A) Salmon
(B) Anguilla
(C) Angle fish
(D) Sturgeons
Ans: B
48. One of the following fishes is mouth breeder
(1) Kurtus
(2) Xenantodon
(3) Oreochromis
(4) Salmon
Ans: C
49. One of the following fishes protects by entangle the egg mass on a hook like process on head
(1) Macropodus
(2) Lepidosiren
(3) Amia
(4) Kurtus
Ans: D
50. Name the fish which the eggs protected inside the integumentary cups
(1) Platystacus
(2) Alytes
(3) Arius
(4) Macropodus
Ans: A
51. Name the fish which built the nest with aquatic weeds
(1) Protopterus
(2) Gasterosteus
(3) Oreochromis
(4) Arius
Ans: B
52. Name the fish which built floating nets to guard their roe
(1) Lepidosiren
(2) Amia
(3) Neoceratodus
(4) Betta
Ans: D
53. One of the following fishes protects eggs by coiling around the egg mass
(1) Protopterus
(2) Arius
(3) Pholis
(4) Harpadon
Ans: C
54. Fish which protect fertilised eggs in a horny capsule is
(1) Wallago
(2) Scyllium
(3) Narcin
(4) Pleuronectus
Ans: B
55. The migration of fishes within the rivers from upstream to downstream and viceversa is termed as ——- migration.
(1) Potamodromous
(2) Diadromous
(3) Anadromous
(4) Catadromous
Ans: A
56. The migration of fishes from fresh water to sea water and viceversa is known as _______ migration.
(1) Potamodromous
(2) Diadromous
(3) Anadromous
(4) Catadromous
Ans: C
57. The migratory movement of fish takes place at some angle to an imaginary line by the source of stimulation this kind of movement are known as
(1) Random movements
(2) Oriented movements
(3) Drifting movements
(D) Parallel movements
Ans: B
58. Parr stage is found in the life cycle of _______fish
(1) Anguilla
(2) Carps
(3) Cod
(4) Salmon
Ans: D
59. Example for oceanodromous migration is
(1) Petromyzon
(2) Trout
(3) Hilsa
(4) Herrings
Ans: D
60. Example for catadromous migration is
(1) Salmon
(2) Perch
(3) Anguilla
(4) Lamprey
Ans: A
61. Xenantodon cancila is included in order:
(1) Perciformes
(2) Mugiliformes
(3) Beloniformes
(4) Channiformes
Ans: C
62. The chemical atragin is used to control
(1) Aquatic weeds
(2) Aquatic insects
(3) Predatory fish
(4) Trash fish
Ans: A
63. The excretory structure of prawn is
A. Nephridia
B. Nephron
C. Green gland
D. Kidney
Ans: C
64. In which fish, gill chambers act as accessory respiratory organ?
A. Heteropneustes
B. Anabas
C. Clarias
D. Protopterus
Ans: B
65. What is the age of the brooder female fish selected for induced breeding?
A. 2- 4 Years
B. 1- 4 Years
C. 3- 4 Years
D. 1- 2 Years
Ans: A
66. Endoskeleton of Sepia is
A. statocyst
B. spicules
C. pedicellaria
D. cuttle bone
Ans: D
67. Which among the following is not a coral?
A. medrepora
B. gorgonia
C. favia
D. hydra
Ans: D
68. The free swimming larva of leucosolenia is
A. Auricularia
B. Paranchymula
C. Stomoblastula
D. Amphiblastula
Ans: B
69. Larval form of Rock lobster Pannulirus
A. Mysis
B. Phyllosoma
C. Zoaea
D. Megalopa
Ans: B
70. Presence of brood pouch as parental care behavior is found in the fishes of which family?
(A) Clupiadae (B) Chiremaidae
(C) Syngnathidae (D) Stromatoidae
Ans: C
71. Two coins are tossed simultaneously. What is the probability of getting exactly one head ?
A) 0.25 B) 0.5
C) 0.75 D) 0
Ans: B
72. In which approach to probability the outcomes are equally likely to occur ?
A) Classical approach B) Subjective approach
C) Relative frequency approach D) Axiomatic approach
Ans: A
73. The chance that a ship safely reach a port is 0.20. What is the probability that out of 3 ships expected, no ship would arrive safely ?
A) 0.80 B) 0.512 C) 0 D) 0.488
Ans: B
74. Which among the following is true for a Poisson distribution ?
A) Mean = Variance B) Mean > Variance
C) Mean < Variance D) Mean = Standard deviation
Ans: A
75. If the points in a scatter diagram show a downward trend from the left top to the right bottom, the correlation is
A) Positive B) Negative
C) Zero D) None of the above
Ans: B
76. If correlation coefficient = 0.8, coefficient of determination is
A) 80%
B) 8%
C) 0.8%
D) 64%
Ans: D
77. Sampling error is present in
A) Census survey
B) Sample survey
C) Both Census and Sample survey
D) Neither Sample nor Census survey
Ans: B
78. What is the critical value for a two-tailed hypothesis test on a population mean when level of significance is 5% and the population standard deviation is known ?
A) 2.58 B) 2.33 C) 1.96 D) 1.645
Ans: C
79. Large sample theory is applicable when the sample size is
A) More than 30 B) Less than 30 C) Equal to 30 D) Atleast 100
Ans: A
80. The Analysis of Variance (ANOVA) utilizes
A) Z test B) t-test
C) Chi-square test D) F-test
Ans: D
81. Fisheries extension is _______ type of education.
A) Informal B) Formal C) Non-formal D) Unorganized
Ans: C
82. Fisheries extension is working in harmony with the _______ of people.
A) Culture B) Customs C) Habits D) Rituals
Ans: A
83. The central element in learning situation is
A) Instructor B) Teaching equipment
C) Learner D) Subject matter
Ans: C
84. A scientific representation of the original with model, specimen and painting is known as
A) Objects B) Mock-ups C) Translide D) Diorama
Ans: D
85. Which of the following statements is/are true about Audio Visual Aids ?
i. AV aids clarify the idea being presented.
ii. AV aids vitalize and make teaching more real.
iii. AV aids will not change the attitude or point of view of the farmers.
A) Only i and ii B) Only i and iii
C) Only ii and iii D) All of the above (i, ii, iii)
Ans: A
86. Among the extension teaching methods, to develop skill among the farmers ______ method is used.
A) Observation plots B) Result demonstrations
C) Method demonstrations D) National demonstrations
Ans: C
87. An outline of activities arranged for the efficient execution of the entire programme is
A) Project B) Calendar of work
C) Plan of work D) Action plan
Ans: C
88. In programme planning process the objectives of the programme are determined by
A) Villagers alone B) Local leader alone
C) Villagers and local leaders D) Villagers and extension staff
Ans: D
89. Which among the following statement is true about the monoclonal antibody ?
i. Batch to batch variability
ii. Expensive to produce
iii. Recognize only one epitope of an antigen
iv. Recognize multiple epitope of an antigen
A) i and iii
B) ii and iii
C) i and ii
D) All
Ans: B
90. ____________ is viewed as a holistic approach to move beyond traditional crop production emphasis to include all land based activities.
A) Farmer-First (FF) Model
B) Broad Based Agricultural Extension
C) Farming Systems Research and Extension (FSRE)
D) Circular Model Transfer of Technology
Ans: B
91. Which country stood at first in terms of fishery production ?
A) India B) China C) Japan D) US
Ans: B
92. When will people search harder to find substitutes for fish ?
A) When the price of fish is high
B) When the taste of fish is too bad
C) When the price of chicken is less
D) When the supply of fish is high
Ans: A
93. Write the term to describe a practice in which indigenous knowledge of nature, originating with indigenous peoples, is used by others for profit, without authorization or compensation to the indigenous people themselves.
A) PSM B) Embargo C) Bio Piracy D) Patents
Ans: C
94. The agreement on the application of _________ sets out the basic rules for food safety and animal and plant health standards.
A) Fishing subsides
B) Sanitary and Phytosanitary measures
C) Bio Piracy
D) Production and Conservation
Ans: B
95. Name the term that indicates the maximum catch that can be extracted from a fish or other population in the long term.
A) Maximum Production B) Sustainable Production
C) Maximum Sustainable Yield D) Blue Economy
Ans: C
96. What is Pier ?
A) A raised structure in a body of water, typically supported by piles or pillars
B) A long, narrow structure that protects a coastline from the currents and tides
C) A platform to which ships are docked for loading and unloading
D) An enclosed area of water used for loading, unloading, building or repairing ships
Ans: A
97. What is the subject matter discussed in Section 22 of the Coastal Aquaculture Authority Act, 2005 ?
A) Penalty
B) Power to remove difficulties
C) Protection of action taken in good faith
D) Power of Central Government to make rules
Ans: C
98. What is a Small Scale Industrial Unit as per the definition revised in July 2020 in India ?
A) An enterprise having investment up to Rupees 25 lakhs
B) An enterprise having investment up to Rupees 5 crores
C) An enterprise having investment in plant and machinery or equipment which does not exceed Rs. 1 crore and turnover which does not exceed Rs. 10 crores
D) An enterprise having investment in plant and machinery or equipment which does not exceed Rs. 10 crores and turnover which does not exceed Rs. 50 crores
Ans: D
99. North west coast of India accounts for almost 90% of the total ___________ landings in India.
A) Demersal finfish B) Elasmobranch
C) Non-penaeid prawn D) Lobster
Ans: C
100. Articles __________ of the UNCLOS prescribe the area extending up to 200 nautical miles ( _______ kms) off the coast as Exclusive Economic Zone.
A) 50-65; 325
B) 55-65; 350
C) 55-75; 370
D) 65-75; 360
Ans: C
(1) Protopterus
(2) Gasterosteus
(3) Oreochromis
(4) Arius
Ans: B
52. Name the fish which built floating nets to guard their roe
(1) Lepidosiren
(2) Amia
(3) Neoceratodus
(4) Betta
Ans: D
53. One of the following fishes protects eggs by coiling around the egg mass
(1) Protopterus
(2) Arius
(3) Pholis
(4) Harpadon
Ans: C
54. Fish which protect fertilised eggs in a horny capsule is
(1) Wallago
(2) Scyllium
(3) Narcin
(4) Pleuronectus
Ans: B
55. The migration of fishes within the rivers from upstream to downstream and viceversa is termed as ——- migration.
(1) Potamodromous
(2) Diadromous
(3) Anadromous
(4) Catadromous
Ans: A
56. The migration of fishes from fresh water to sea water and viceversa is known as _______ migration.
(1) Potamodromous
(2) Diadromous
(3) Anadromous
(4) Catadromous
Ans: C
57. The migratory movement of fish takes place at some angle to an imaginary line by the source of stimulation this kind of movement are known as
(1) Random movements
(2) Oriented movements
(3) Drifting movements
(D) Parallel movements
Ans: B
58. Parr stage is found in the life cycle of _______fish
(1) Anguilla
(2) Carps
(3) Cod
(4) Salmon
Ans: D
59. Example for oceanodromous migration is
(1) Petromyzon
(2) Trout
(3) Hilsa
(4) Herrings
Ans: D
60. Example for catadromous migration is
(1) Salmon
(2) Perch
(3) Anguilla
(4) Lamprey
Ans: A
61. Xenantodon cancila is included in order:
(1) Perciformes
(2) Mugiliformes
(3) Beloniformes
(4) Channiformes
Ans: C
62. The chemical atragin is used to control
(1) Aquatic weeds
(2) Aquatic insects
(3) Predatory fish
(4) Trash fish
Ans: A
63. The excretory structure of prawn is
A. Nephridia
B. Nephron
C. Green gland
D. Kidney
Ans: C
64. In which fish, gill chambers act as accessory respiratory organ?
A. Heteropneustes
B. Anabas
C. Clarias
D. Protopterus
Ans: B
65. What is the age of the brooder female fish selected for induced breeding?
A. 2- 4 Years
B. 1- 4 Years
C. 3- 4 Years
D. 1- 2 Years
Ans: A
66. Endoskeleton of Sepia is
A. statocyst
B. spicules
C. pedicellaria
D. cuttle bone
Ans: D
67. Which among the following is not a coral?
A. medrepora
B. gorgonia
C. favia
D. hydra
Ans: D
68. The free swimming larva of leucosolenia is
A. Auricularia
B. Paranchymula
C. Stomoblastula
D. Amphiblastula
Ans: B
69. Larval form of Rock lobster Pannulirus
A. Mysis
B. Phyllosoma
C. Zoaea
D. Megalopa
Ans: B
70. Presence of brood pouch as parental care behavior is found in the fishes of which family?
(A) Clupiadae (B) Chiremaidae
(C) Syngnathidae (D) Stromatoidae
Ans: C
71. Two coins are tossed simultaneously. What is the probability of getting exactly one head ?
A) 0.25 B) 0.5
C) 0.75 D) 0
Ans: B
72. In which approach to probability the outcomes are equally likely to occur ?
A) Classical approach B) Subjective approach
C) Relative frequency approach D) Axiomatic approach
Ans: A
73. The chance that a ship safely reach a port is 0.20. What is the probability that out of 3 ships expected, no ship would arrive safely ?
A) 0.80 B) 0.512 C) 0 D) 0.488
Ans: B
74. Which among the following is true for a Poisson distribution ?
A) Mean = Variance B) Mean > Variance
C) Mean < Variance D) Mean = Standard deviation
Ans: A
75. If the points in a scatter diagram show a downward trend from the left top to the right bottom, the correlation is
A) Positive B) Negative
C) Zero D) None of the above
Ans: B
76. If correlation coefficient = 0.8, coefficient of determination is
A) 80%
B) 8%
C) 0.8%
D) 64%
Ans: D
77. Sampling error is present in
A) Census survey
B) Sample survey
C) Both Census and Sample survey
D) Neither Sample nor Census survey
Ans: B
78. What is the critical value for a two-tailed hypothesis test on a population mean when level of significance is 5% and the population standard deviation is known ?
A) 2.58 B) 2.33 C) 1.96 D) 1.645
Ans: C
79. Large sample theory is applicable when the sample size is
A) More than 30 B) Less than 30 C) Equal to 30 D) Atleast 100
Ans: A
80. The Analysis of Variance (ANOVA) utilizes
A) Z test B) t-test
C) Chi-square test D) F-test
Ans: D
81. Fisheries extension is _______ type of education.
A) Informal B) Formal C) Non-formal D) Unorganized
Ans: C
82. Fisheries extension is working in harmony with the _______ of people.
A) Culture B) Customs C) Habits D) Rituals
Ans: A
83. The central element in learning situation is
A) Instructor B) Teaching equipment
C) Learner D) Subject matter
Ans: C
84. A scientific representation of the original with model, specimen and painting is known as
A) Objects B) Mock-ups C) Translide D) Diorama
Ans: D
85. Which of the following statements is/are true about Audio Visual Aids ?
i. AV aids clarify the idea being presented.
ii. AV aids vitalize and make teaching more real.
iii. AV aids will not change the attitude or point of view of the farmers.
A) Only i and ii B) Only i and iii
C) Only ii and iii D) All of the above (i, ii, iii)
Ans: A
86. Among the extension teaching methods, to develop skill among the farmers ______ method is used.
A) Observation plots B) Result demonstrations
C) Method demonstrations D) National demonstrations
Ans: C
87. An outline of activities arranged for the efficient execution of the entire programme is
A) Project B) Calendar of work
C) Plan of work D) Action plan
Ans: C
88. In programme planning process the objectives of the programme are determined by
A) Villagers alone B) Local leader alone
C) Villagers and local leaders D) Villagers and extension staff
Ans: D
89. Which among the following statement is true about the monoclonal antibody ?
i. Batch to batch variability
ii. Expensive to produce
iii. Recognize only one epitope of an antigen
iv. Recognize multiple epitope of an antigen
A) i and iii
B) ii and iii
C) i and ii
D) All
Ans: B
90. ____________ is viewed as a holistic approach to move beyond traditional crop production emphasis to include all land based activities.
A) Farmer-First (FF) Model
B) Broad Based Agricultural Extension
C) Farming Systems Research and Extension (FSRE)
D) Circular Model Transfer of Technology
Ans: B
91. Which country stood at first in terms of fishery production ?
A) India B) China C) Japan D) US
Ans: B
92. When will people search harder to find substitutes for fish ?
A) When the price of fish is high
B) When the taste of fish is too bad
C) When the price of chicken is less
D) When the supply of fish is high
Ans: A
93. Write the term to describe a practice in which indigenous knowledge of nature, originating with indigenous peoples, is used by others for profit, without authorization or compensation to the indigenous people themselves.
A) PSM B) Embargo C) Bio Piracy D) Patents
Ans: C
94. The agreement on the application of _________ sets out the basic rules for food safety and animal and plant health standards.
A) Fishing subsides
B) Sanitary and Phytosanitary measures
C) Bio Piracy
D) Production and Conservation
Ans: B
95. Name the term that indicates the maximum catch that can be extracted from a fish or other population in the long term.
A) Maximum Production B) Sustainable Production
C) Maximum Sustainable Yield D) Blue Economy
Ans: C
96. What is Pier ?
A) A raised structure in a body of water, typically supported by piles or pillars
B) A long, narrow structure that protects a coastline from the currents and tides
C) A platform to which ships are docked for loading and unloading
D) An enclosed area of water used for loading, unloading, building or repairing ships
Ans: A
97. What is the subject matter discussed in Section 22 of the Coastal Aquaculture Authority Act, 2005 ?
A) Penalty
B) Power to remove difficulties
C) Protection of action taken in good faith
D) Power of Central Government to make rules
Ans: C
98. What is a Small Scale Industrial Unit as per the definition revised in July 2020 in India ?
A) An enterprise having investment up to Rupees 25 lakhs
B) An enterprise having investment up to Rupees 5 crores
C) An enterprise having investment in plant and machinery or equipment which does not exceed Rs. 1 crore and turnover which does not exceed Rs. 10 crores
D) An enterprise having investment in plant and machinery or equipment which does not exceed Rs. 10 crores and turnover which does not exceed Rs. 50 crores
Ans: D
99. North west coast of India accounts for almost 90% of the total ___________ landings in India.
A) Demersal finfish B) Elasmobranch
C) Non-penaeid prawn D) Lobster
Ans: C
100. Articles __________ of the UNCLOS prescribe the area extending up to 200 nautical miles ( _______ kms) off the coast as Exclusive Economic Zone.
A) 50-65; 325
B) 55-65; 350
C) 55-75; 370
D) 65-75; 360
Ans: C
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