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 'LABORATORY TECHNICIAN KERALA DAIRY DEVELOPMENT' And exam conducted in the year 2018. And Question paper code was '117/2018'. 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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117/2018
Atfter collection, milk should be cooled to improve keeping quality at a temperature
A) 0°C 8) 100 © © D} 5°C
Adulteration of milk by addition of cane sugar can be detected by
A} lodometric method B) Seliwanoff's test
C) Benedict test D) Molisch test
Fat percentage of milk can be estimated by
A} Gerber's method B) Resazurin test
C) D-xylose D) Inhibiters test
Normal specific gravity of milk is
¢) 1.015-1.025 B) 1.028-1.035 C) 1.010-1.025 D) None
Specific gravity of milk is determined by
A} Lactometer B) Densitometer 0) Turbidometer D) None
Average size of fat globules is
A} 2 -3 micron B} 3 -5 micron ©) 4 - 6 micron 0) 6 —8 micron
In Low Temperature Long Time System (LTLTS) the temperature used for milk
preservation is
ಹ) 50101011511. B) 63°C for 30 min.
C) 72°C for 15 sec. D} 110°C for 30 min.
Milk contain following minerals except
A} Calcium 8) Magnesium ©) Iron D) Potassium
Fat percentage is high in
A} Cow milk 18) Toned milk C) Buffalo milk D} Skimmed milk
Definitive test for checking the sterilisation of milk
A} Methylene Blue Reduction test ©) Turbidity test
C) Coliform count D) Phosphatase test
