A competitive examination for recruitment of the Junior Hydrgeologists (Scientist B), Group ‘A' and Assistant Hydrgeologists Group ‘B' in Central Ground Water Board mentioned below will be held by the Union Public Service Commission commencing from 3rd December 2011 in accordance with the rules published by the Ministry of Mines.
The competitive examination will comprise of the written examination followed by an interview of successful candidates. The examination in all the subjects will be of conventional (Essay) type.
For Junior Hydrgeologists (Scientist B), Group ‘A' and Assistant Hydrgeologists Group ‘B' in Central Ground Water Board
Part I: The written examination consisting of the following papers each of 3 hours duration:-
- General English (100 marks)
- Geology Paper I (200 marks)
- Geology Paper II (200 marks)
- Hydrogeology (200 marks)
General English: Candidate will be required to write a short Essay in English. Other questions will be designed to test their understanding of English and workmanlike use of words.
Geology- Paper I
Section A: Geomorphology and Remote Sensing
Basic principles, weathering and soils, Mass wasting, Influence of climate on processes, Concept of erosion cycles. Geomorphology of fluvial tracts, arid zones, coastal regions, ‘Karst' landscapes and glaciated ranges. Geomorphic mapping, slope analysis and drainage basin analysis. Applications of geomorphology in mineral prospecting, civil engineering, hydrology, and environmental studies. Topographical maps. Geomorphology of India.
Concepts and principles of aerial photography and photogrammetry, satellite remote sensing- data products and their interpretation. Digital image processing. Remotesensing in landform and land use mapping, structural mapping, hydrogeological studies and mineral exploration. Global and Indian Space Missions. Geographic Information System (GIS) - principles and applications.
Section B: Structural Geology
Principles of geological mapping and map reading, projection diagrams. Stress- strain relationships of elastic, plastic, and viscous materials. Measurement of strain in deformed rocks. Behaviour of minerals and rocks under deformation conditions. Structural analysis of folds, cleavages, lineations, joints and faults. Superposed deformation. Mechanism of folding and faulting. Time-relationship between crystallization and deformation. Unconformities and basement-cover relations. Structural behaviour of igneous rocks, diapirs and salt domes. Introduction to petrofabrics.
Section C: Geotectonics
Earth and the solar system, Meteorites and other extra-terrestrial materials, Planetary evolution of the earth and its internal structure. Heterogeneity of the earth's crust. Major tectonic features of the Oceanic and Continental crust. Continental drift - geological and geophysical evidence, mechanics, objections, present status. Gravity and magnetic anomalies at Mid-ocean ridges, deep sea trenches, continental shield areas and mountain chains. Palaeomagnetism. Seafloor spreading and Plate Tectonics. Island arcs, Oceanic islands and volcanic arcs. Isostasy, orogeny and epeirogeny. Seismic belts of the earth. Seismicity and plate movements. Geodynamics of the Indian plate.
Section D: Stratigraphy
Nomenclature and the modern stratigraphic code. Radioisotopes and measuring geological time. Geological time-scale. Stratigraphic procedures of correlation of unfossiliferous rocks. Precambrian stratigraphy of India. Stratigraphy of the Palaeozoic, Mesozoic and Cenozoic formations of India. Gondwana system and Gondwanaland. Rise of the Himalaya and evolution of Siwalik basin. Deccan Volcanics. Quaternary Stratigraphy. Rock record, palaeoclimates and palaeogeography.
Section E: Palaeontology
Fossil record and geological time-scale. Morphology and time-ranges of fossil groups. Evolutionary changes in molluscs and mammals in geological time. Principles of evolution. Use of species and genera of foraminifera and echinodermata in biostratigraphic correlation. Siwalik vertebrate fauna and Gondwana flora, evidence of life in Precambrian times, different microfossil groups and their distribution in India.
Geology - Paper II
Section A: Mineralogy
Physical, chemical and crystallographic characteristics of common rock forming silicate mineral groups. Structural classification of silicates. Common minerals of igneous and metamorphic rocks. Minerals of the carbonate, phosphate, sulphide and halide groups.
Optical properties of common rock forming silicate minerals, uniaxial and biaxial minerals. Extinction angles, pleochroism, birefringence of minerals and their relation with mineral composition. Twinned crystals. Dispersion. The U-stage.
Section B: Igneous and Metamorphic Petrology
Forms, textures and structures of igneous rocks. Silicate melt equilibria, binary and pernery phase diagrams. Petrology and geotectonic evolution of granites, basalts, andesites and alkaline rocks. Petrology of gabbros, kimberlites, anorthosites and carbonatites. Origin of primary basic magmas.
Textures and structures of metamorphic rocks. Regional and contact metamorphism of pelitic and impure calcareous rocks. Mineral assemblages and P/T conditions. Experimental and thermodynamic appraisal of metamorphic reactions. Characteristics of different grades and facies of metamorphism. Metasomatism and granitization, migmatites. Plate tectonics and metamorphic zones. Paired metamorphic belts.
Section C: Sedimentology
Provenance and diagenesis of sediments. Sedimentary textures. Framework matrix and cement of terrigenous sediments. Definition, measurement, and interpretation of grain size. Elements of hydraulics. Primary structures, palaeocurrent analysis. Biogenic and chemical sedimentary structures. Sedimentary environment and facies. Facies modelling for marine, non-marine and mixed sediments. Tectonics and sedimentation. Classification and definition of sedimentary basins, Sedimentary basins of India. Cyclic sediments. Seismic and sequence stratigraphy. Purpose and scope of basin analysis. Structure contours and isopach maps.
Section D: Geochemistry
Earth in relation to the solar system and universe, cosmic abundance of elements. Composition of the planets and meteorites. Structure and composition of earth and distribution of elements. Trace elements. Elementary crystal chemistry and thermodynamics. Introduction to isotope geochemistry. Geochemistry of hydrosphere, biosphere and atmosphere. Geochemical cycle and principles of geochemical prospecting.
Section E: Environmental Geology
Concepts and principles. Natural hazards- preventive/precautionary measures- floods, landslides, earthquakes, river and coastal erosion. Impact assessment of anthropogenic activities such as urbanization, open cast mining and quarrying, river- valley projects, disposal of industrial and radio- active waste, excess withdrawal of ground water, use of fertilizers, dumping of ores, mine waste and fly-ash. Organic and inorganic contamination of ground water and their remedial measures. Soil degradation and remedial measures. Environment protection- legislative measures in India.
Section A: Origin, occurrence and distribution of water
Origin of water: meteroic, juvenile, magmatic and sea waters, Hydrologic cycle precipitation, runoff, infiltration and evapotranspiration, Hydrographs. Subsurface movement and vertical distribution of groundwater, Springs, Classification of aquifers, Concepts of drainage basin and groundwater basin. Hydrological proper ties of rocks - specific yield, specific retention, porosity, hydraulic conductivity, transmissivity, storage coefficient, water table f luctuations -causative factors, concept of barometric and tidal efficiencies, water table contour maps, Classification of rocks with respect to their water bearing characteristics, Hydro-stratigraphic units, Groundwater provinces of India, Hydrogeology of and Zones of India, wet lands.
Section B: Well hydraulies and well design
Theory of groundwater flow, Darey's Law and its applications, determination of permeability in laboratory and in field, Types of wells, drilling methods, construction, design, development and maintenance of wells, specific capacity and its determination. Unconfined, confined, steady, unsteady and radial flow conditions, Pumps tests - methods, data analysis and interpretation for hydrogeologic boundaries, Evaluation of aquifer parameters using Thiem, Theis, Jacob and Walton methods, Groundwater modeling - numerical and electrical models.
Section C: Groundwater chemistry
Groundwater quality - physical and chemical properties of water, quality criteria for different uses, graphical presentation of water quality data, groundwater quality in different provinces of India - problems of arsenic and fluoride, Saline water intrusion in coastal and other aquifers and its prevention, Radioisotopes in hydrogeological studies, Groundwater contamination.
Section D: Groundwater exploration
Geological- lithological and structural mapping, fracture trace analysis, Hydrogeological- lithological classification with respect of hydrologic properties, Hydraulic continuity in relation to geologic structures, Location of springs Remote sensing - hydrogeomorphic mapping of the terrain using different images of different satellite missions, lineament mapping, shallow groundwater potential zone mapping using satellite images, Surface geophysical methods - seismic, gravity, geoelectrical and magnetic, Subsurface geophysical methods - well logging for delineation of aquifers and estimation of water quality.
Section E: Groundwater problems and management
Groundwater problems related to foundation work, mining, canals and tunnels, Problems of over exploitation and groundwater mining. Groundwater development in urban areas and rain water harvesting, Artificial recharge methods, Groundwater problems in arid regions and remediation. Groundwater balance and methods of estimation. Groundwater legislation. Sustainability criteria and managing renewable and nonrenewable groundwater resources.
Part II: Interview for Personality Test of such candidates as may be called by the Commission (Maximum marks: 200 marks)
Note: Candidates competing for posts under both Category I and Category II will be required to offer all the five subjects mentioned above.