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 ' Junior Instructor (Dairying)' And exam conducted in the year 2023. And Question paper code was '150/2023'. 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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During fermentation of yoghurt # casein is hydrolysed by :
(^) L.bulgaricus 4 59. {ला771क7775
(0 Both ൯൩) None
Choose the correct statement :
(A) Older cells are more susceptible to pH change than younger cells
(B) Younger cells are more susceptible to pH change than older cells
(C) Resting cells are more susceptible to pH change than younger cells
(D) None
Alcaligenes viscolactis casues the —————— defect in milk.
(^) Gassiness ൯) Ropiness
(೮) Sourness (D) Sweet curdling
Red discolouration in milk is caused by :
(A) Serratia marcescens (B) Rhodotorula glutinis
(C) Both (A) and (B) ൯൩) None
Malta fever is caused by :
(A) Clostridium spp. (B) Bacillus spp.
(C) Brevi bacterium spp. (D) Brucella spp.
Widal test is used for the detection of :
(A) Typhoid fever (B) Q fever
(C) Scarlet fever (D) Malta fever
is an obligately heterofermentative lactobacilli.
(A) Lactobacillus acidophilus
൯) Lactobacillus casei
(C) Lactobacillus brevis
(1) Lacto bacillus bulgaricus
The key enzyme F6-PPK is used for the identification of the genus :
(^) Lactobacillus ൯) Bifidobacterium
(C) Lactococcus (0) राछ0००टटप्र5
The activity of starter culture can be maintained by :
(A) Reducing or controlling the metabolic activity of the microorganism.
(B) Separating the organism from waste products
(0) Both (A) and (B)
(D) None
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