Kerala PSC Previous Years Question Paper & Answer
Page:6
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Project Officer' And exam conducted in the year 2022. And Question paper code was '038/2022/OL'. Medium of question paper was in Malayalam or English . Booklet Alphacode was ''. 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.
‘AsProcess of trapping solar energy
B:-Allochthonus injection of nutrients to fish pond
Production of organic material by primary autotrophs
Decomposition of autotrophs and phagotrophs by saprotrophs
Correct Answer:- Option ®
Question42:-The common variety of duck integrated in Duck-cum-fish culture in India is,
‘AcKhaki Campbell
B:-Japanece Criollo
೦-೮೧೦ Eider
D-Mandarin duck
Correct Answer:- Option-é
Question43:-In biofloc fish culture floc is necessarily not supported to be together
‘AcBy surface tension variations in entrapped air
B:-Bound by filamentous microorganisms
Held by electrostatic attraction
Din a loose matrix of mucus that is secreted by bacteria
Correct Answer:- Option-é
Question44:-The desirable CN ratio in biofloc system is (Carbon : Nitrogen)
Aol
1
8:08 :01.
0:25:00
0:01: 01
Correct Answer:- Option-é
Question45:-The amount of living material present in water column at any given time is called
‘AcBiomass
B: Productivity
C=Blotic potential
D-Trophic status
Correct Answer:- Option-é
Question46:-In freshwater the limiting nutrient is
Ac Nitrogen
B:-Phosphorus,
பளு
صن امع يم
Correct Answer:- Option ®
Question47:-Freshwater pravin Macrobrachium rosenbergii is
Ac Herbivore
B:-Carnivore
೦೦೧೫೬೦೫೬
D:-Predator
Correct Answer:- Option-C
Question48:-The aquaponics is least considerate of
ApH
B:-Conductivity
C:Suspended solids
D:-Silicate
Correct Answer:- Option-D
Question49:-The feed additive tocopherol is an
AcAntioxidant
B:-Binder