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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087/21
As per the latest FAO data (FAO 2020) India’s contribution on World aquaculture
fish production is about
A) 8.5% B) 15% C) 2.5% D) 25%
Which among the following statement is true ?
Increase of temperature in the aquaculture pond causes
i. Low oxygen solubility
ii. High metabolic rate of cultured species
iii. High oxygen solubility
iv. High ammonia toxicity
A) ii 8) i and ii C) i, ii and iii D) i, ॥ andiv
Ideal C/N ratio used in biofloc technology
A) 1:5 B) 15:1 ©) 5:1 D) 1:15
Which among the following is an inorganic extractive cultured in IMTA ?
A) Salmon B) Blue mussels
C) Kelp D) Sea cucumber
Dolomite used for adjusting the pH/alkalinity in aquaculture pond is
A) 08005 B) MgCO, ©) CaMg(CO3). 0) 4800,
Water flow through the RAS ina hatchery is in the order of
A) Culture tank - UV chamber - Biofilter - Mechanical filter
8) Culture tank - Mechanical filter - UV chamber - Biofilter
©) Culture tank - Biofilter - UV chamber - Mechanical filter
0) Culture tank - Biofilter - Mechanical filter - UV chamber
Predominant mineral present in the acid sulfate soils
A) Pyrite B) Calcite C) Magnetite D) Hematite
Black-lipped pearl oyster farming in India is at
A) Vizhinjam B) Bengal
C) Andaman and Nicobar Islands D) Lakshadweep Islands
How many distinct zoeal stages are there in the larval development of
Macrobrachiumrosenbergii ?
A) 11 B) 32 C) 30 D) 5
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