Kerala PSC Previous Years Question Paper & Answer
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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'FISHERIES EXTENSION OFFICER -FISHERIES ' And exam conducted in the year 2021. And Question paper code was '087/2021'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
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55. Deficiency of which amino acid causes scoliosis/lordosis in fishes ?
A) Methionine B) Valine C) Tryptophan D) Tyrosine
56. Foam fractionator is used in the aquarium for the removal of
A) Organic compounds B) Inorganic compounds
C) Ammonia D) Dissolved inorganic compounds
57. Which of the following ornamental fishes produces non-sticky eggs ?
A) Melon barbs B) Banded gourami
C) Zebra fish D) All
58. Marine ornamental fish hatchery production developed in India for
A) Amphiprionpercula B) Amphiprionsebae
C) Pomacentruspavo D) All
59. Which among the following is not belongs to Chlorophyceae ?
i. Chlorella
рее. Chaetocerous
ii. Isochrysis
iv. Dunaliela
A) iand ii 8) i and iv
C) ii and iii D) None of the above
60. Name the marine rotifer.
A) Brachionusplicatilis B) Brachionuscalyciflorus
C) Brachionusrubens D) Daphnia magna
61. Which among the following is the mode of action of probiotic in fishes ?
A) Competitive exclusion B) Production of inhibitory substances
C) Competition for nutrients D) All
62. Fresh water white spot disease in fishes is caused by
A) WSSV 8) /chthyophthiriusmultifilis
C) Oodinium 0) Ichthyobodonecator
63. Tilapia Lake Virus (TiLV) belongs to the family
A) Orthomyxoviridae B) Rhabdoviridae
C) Togaviridae D) Alloherpesviridae