RPSC to release ARO Answer Key Exam 2020 soon, 24 November Paper Analysis

ARO Examination 2020 Answer Key: Rajasthan Public Service Commission shall publish shortly the Shift-wise Provisional Answer Key for Agriculture Research Officer Examination 2020 held on the 24th Date of November 2020.  The Office of Controller / Registrar will display in RPSC Website the ARO Screening Examination 2020 Answer Key Set-wise (A, B, C, & D) to seek challenges from the Candidates.  The Candidates, who appeared in the Screening Examination for Agriculture Research Officer may submit individual Objections via E-Email Identifications registered in respective Online Applications. 

ARO Screening Test 2020:  Rajasthan Public Service Commission held Objective Type Screening Examination 2020 consisted of 02 Parts.  The A.R.O. Screening Examination 2020 with 03-Hours Span comprised 180 Objective-Type Multiple-Choice Questions for Aggregate 180 Marks.  The ARO Screening Exam- 2020 involves Negative Marking of 0.33 or One Third for each Incorrect Response / Multiple Answers to each MCQs. No Mark / Zero (0) Mark shall be awarded for Un-attempted / Unanswered MCQs.      

ARO Screening Examination 2020: RPSC ARO consisted of 02 Parts, i.e., Part A: General Knowledge of Rajasthan and Part B: Agriculture Chemistry where Part A comprises the Objective-Type Multiple-Choice Questions as described hereunder:   

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Part - I comprises 50 Objective-Type Multiple Choice Questions based on Unit - I:  a) Historical Rajasthan; b) Emergence of Modern Rajasthan; c) Art of Rajasthan, d) Language and Literature, e) Religious Life, f) Social Life in Rajasthan and g) Geography of Rajasthan  

Part-II comprises 130 Objective-Type MCQs based on Units II up to XV. Unit-II: Chemical (Elemental) composition of the Earth's crust and soils. Unit-III: Cation and anion exchange process in soil. Unit-IV: Structural Chemistry, Classification of Minerals, Chemical Composition and properties of Clay Minerals among others. Unit-V: Factors of Soil formation, Soil forming processes; Weathering of Rocks and Mineral transformation; Soil profile, etc. Unit-VI: Soil survey and its types; Soil survey techniques, Soil survey interpretations, Soil mapping, Mapping units, Techniques for generation of Soil Maps among others.  

Unit-VII: Soil Physical Properties, Unit-VIII: Soil fertility and Soil productivity; Nutrient Sources: Fertilizers and manures, essential Plant nutrients-functions and Deficiency symptoms and others, Unit-IX: Principles of pH Meter, EC Meter, colorimeter and flame photometer. Common Soil test methods for Fertilizer recommendations among others; Unit-X: Soil Biota, Microbiology and Biochemistry of Root-Soil Interface, Phyllosphere, Rhizosphere, Soil Microbial Biomass (C, N and P) etc. 

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Unit-XI: Area, Distribution and Management of Salt-affected soils and poor quality Waters, Acid soils, Acid sulphate soils, Highly and slowly permeable soils mong others. Unit-XII: Soil, Water and Air pollution problems associated with Agriculture, Nature and extent. Remediation / Amelioration of contaminated Soil and Water. Unit-XIII: Preparation of Solutions for Standard Curves, Analytical reagents, Qualitative Reagents, Indicators and Standard solutions for Acid-base. 

Unit-XIV: Determination of Nutrient Potentials and Potential buffering capacities of soils for Phosphorus and Potassium, Estimation of Phosphorus, Ammonium and Potassium fixation capacities of soils. And Unit - XV: Radioactivity and Units, Radioisotopes - Properties and Decay Principles, nature and Properties of Nuclear radiations. Principles and use of Radiation Monitoring Instruments. GM - Counter, Solid and Liquid scintillation counters among others.