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 'CHEMICAL ASSISTANT GROUND WATER DEPARTMENT' And exam conducted in the year 2019. And Question paper code was '022/2019'. 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.
22/2019
1.
Maximum permissible limit of nitrate nitrogen in drinking water as per WHO standard
15:
(^) 45 mg/L (B) 5mg/L (ಲ) 10 mg/L (D) 25 mg/L
Tt is desirable that CRH of a fertilizer should be :
(^) طون (B) Low ( Verylow (D) Medium
When a pesticide dose of 0.5 to 2.0 kg/ha is applied, its concentration in the upper soil
layeris :
(^) 0.25to 1.0 mg/kg (B) 0.5 to 2.0 mg/kg
(ಲ) 0.1 ع 1.0 م1 (D) 1.0to 2.0 mg/kg
Ammonia volatilization losses are of great importance in :
(ಹ) Adidic soils (B) Soils with high CEC
(C) Calcareous soils (D) Soils with high clay content
Producer gas contains :
(5) Hydrogen and carbon monoxide (B) Nitrogen and hydrogen
(C) Carbon monoxide and nitrogen (D) All the above
On comparing with humic acid, fulvic acid has :
(ಹಿ) More hydrophilic group (B) Higher carbon and lower oxygen content
(9) Higher molecular weight (D) More polymerized compounds
Amino acids are positively charged :
(^) At pH value above the isoelectric point
(8) Under neutral pH
(ಲ) Under alkaline pH
(D) At pH value below the isoelectric point
Feldspars belong to the silicate mineral group.
(ಹಿ) Inosilicate (B) Cyclosilicate
(ಲ) Tektosilicate (D) Phyllosilicate
Bacillus comes under the group.
(ಹ) കുടെ (8) Facultative anaerobes
(ಲ) Oligate anaerobes (D) Microaerobes
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