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PSC Assistant Town Planner Exam Scheme And Syllabus
PSC Assistant Town Planner Exam Scheme:
Preliminary Screening Test will be objective type (MCQ) in 4 different series, viz., A, B, C & D.
Number of questions: 100, each carrying 1 mark.
Full marks: 100.
Duration: 1 hour 30 minutes.
N.B.: There will be negative marking for wrong answers as per norms (1/3rd of the marks for each wrong answer).
PSC Assistant Town Planner Exam Syllabus:
Syllabus for the Preliminary Screening Test:
Multiple choice objective type questions on:
(i) English (Madhyamik Standard) – 20 marks
(ii) Arithmetic and Reasoning (Madhyamik Standard) – 10 marks
(iii) General Knowledge and Current Affairs – 10 marks
(iv) Core subject (Annexure – A) -60 marks
Syllabus for Geophysical Assistant Selection in 2020
1. Introductory Geophysics:
Size, shape, internal structure, and composition of the earth; the concept of isostasy; elements of seismology – body and surface waves, propagation of body waves in the earth’s interior; Gravitational field of the Earth; geomagnetism and paleomagnetism; continental drift, sea floor spreading and plate tectonics theories, earthquake mechanism in relation to plate tectonics, volcanism and mountain building processes; continental and oceanic crust – composition, structure, and thickness.
2. Geophysical Prospecting:
i) Seismic method:
Basic principles of seismic methods, Fermat’s principle, Senell’s law, Reflection, refraction, and diffraction from multilayered medium, Reflection and transmission coefficients, propagation model for exploration seismology, Seismic resolution, Seismic absorption, and anisotropy. Seismic data acquisition, sources of energy. Geophones, the geometry of arrays, Instrumentation, digital recording Seismic Surveys: Principle for multilayer refraction Travel time curves, corrections, Interpretation of data, Reflection principles, CDP, data processing, corrections, NMO correction, Interpretation of data, Fundamental of VSP method, Seismic Tomography. Principles of High-Resolution Seismic (HRS) for coal exploration.
ii) Potential field method:
Gravity and Magnetic method Geophysical potential fields, Inverse-square law of field, Principles of Gravity and Magnetic methods, Geoid, Spheroid, Nature of gravity and its variation, Properties of Newtonian potential, Laplace’s and Poisons equations, Green’s theorem, Gauss law, Concept of Bouguer gravity, its corrections and Bouguer gravity anomaly, Rock densities, factors controlling rock densities, determination of density, theory of isostasy, Earth’s main magnetic field, origin, temporal variations, Geomagnetic elements, Columb’s law of magnetic force and fields, intensity of magnetization and induction, magnetic potential and its relation to field, units of measurement, origin of magnetic anomalies, interrelationship between different components of anomalies, Poison’s relation, Magnetic susceptibility, factors controlling susceptibility (Bulk chemistry, cooling history, metamorphism), magnetic minerals, rock classification, Natural and remnant magnetism, Asiatic and Spinner magnetometers, demagnetization effects. Principles of Gravity and Magnetic instruments, Plan of conducting GM surveys, reduction of gravity and magnetic data, Airborne magnetic surveys and magnetic gradient surveys, Shipborne surveys, Gravity, and Magnetic data reduction, IGSN Gravity bases, International Gravity formula, IGRF corrections for the magnetic field. Separation of regional and residual anomalies, ambiguity in interpretation, Application of GM surveys for Geodynamic studies, Mineral Exploration, Environmental studies. Data processing and interpretation of anomalies, modeling of anomalies.
iii) Electrical and Electromagnetic methods:
Electrical properties of rocks and their measurement, concepts, and assumptions of horizontally stratified earth, anisotropy and its effects on electrical fields, the geoelectric section, and geological section, D.C Resistivity method, fundamental laws, concept on the natural electric field, electrode configuration, choice of methods, Profiling, Vertical Electrical Sounding. SP Method, Origin of SP, application of SP surveys, Origin of Induced Polarization, Membrane and Electrode potential, time and frequency domains of measurement, IP, chargeability, percent frequency effect, and metal factor, dipole theory of IP, Application of IP surveys for mineral exploration (disseminated sulphides).
Electromagnetic methods/ Telluric/Magneto Telluric methods, Passive and Active source methods, Maxwell’s equations, electromagnetic potential and wave equations, boundary conditions, long wave length approximation, depth of penetration, amplitude and phase relations, real and imaginary components, Principles of EM prospecting, various EM methods, Dip angle method, Turam method, moving source receiver methods-horizontal loop (Slingram) method, AFMAG, and VLF methods, Airborne EM systems – rotary field method, INPUT method, EM Profiling, and sounding, Interpretation of EM anomalies, Principles of Ground Penetrating Radar (GPR), Origin and characteristics of MT fields, Instrumentation, Field methods and interpretation of MT data and applications.
Conduction of electricity through rocks, electrical conductivities of metals, non-metals, rock forming minerals and different rocks, concepts of D.C. resistivity measurement, various electrode configurations for resistivity sounding and profiling, application of filter theory, Type-curves over multi-layered structures, Dar-Zarrouck parameters, reduction of layers, coefficient of anisotropy, interpretation of resistivity field data, equivalence and suppression, self-potential and its origin, field measurement, Induced polarization, time and frequency domain IP measurements; interpretation and applications of IP, groundwater exploration, mineral exploration, environmental and engineering applications.The basic concept of EM induction in the earth, Skin-depth, elliptic polarization, inphase and quadrature components, Various EM methods, measurements in different source-receiver configurations. Earth’s natural electromagnetic field, tellurics, magneto tellurics; geomagnetic depth sounding principles, electromagnetic profiling, Time-domain EM method, EM scale modeling, processing of EM data, and interpretation.Geological applications including groundwater, mineral, and hydrocarbon exploration.
3. Borehole Geophysics:
Objectives of good logging, fundamental concepts in borehole geophysics, properties of reservoir rock formations, formation parameters and their relationships-formation factor, porosity, permeability, formation water resistivity, water saturation, irreducible water saturation, hydrocarbon saturation, residual hydrocarbon saturation, Arhcie’s and Humble’s equations; principles, instrumentations, operational procedures and interpretations of various geophysical logs. SP log.
resistivity and micro resistivity logs, nuclear/radioactive logs, acoustic impedance, and propagation logs, temperature log, caliper log, and directional logs, production logging; clean sand and shaly sand interpretations; overlay and cross-plots of well-log data, determination of formation lithology, sub-surface correlation and mapping, delineation of fractures; application of well-logging in hydrocarbon, groundwater, coal, metallic and non-metallic mineral exploration.
4. Radioactivity methods:
Introduction, the principle of radioactivity, constituents of the nucleus , nuclear disintegration, radioactive decay processes, radioactive equilibrium, units, the radioactivity of rocks and minerals, instruments, introduction, ionization chamber, Geiger Muller Counter, Scintillation meter, Gamma Ray Spectrometer, miscellaneous instruments, calibration of instruments, field operation and interpretation.
Water on earth; Types of water – meteoric, juvenile, magmatic and seawater; Hydrological Cycle and its components; Water balance; Water-bearing properties of rocks – porosity, permeability, specific yield, and specific retention; Vertical distribution of water; Zone of aeration and zone of saturation; Classification of rocks according to their water-bearing properties; Aquifers; Classification of aquifers; Concepts of drainage basins and groundwater basins; Aquifer parameters- transmissivity and storage coefficient; Water table and piezometric surface; Fluctuations of the water table and piezometric surface, Barometric, and tidal efficiencies; Water table contour maps; Hydrographs; Springs; Geologic and geomorphic controls on groundwater; Hydrostratigraphic units; Groundwater provinces of India. Hydrogeology of arid zones of India; Hydrogeology of wetlands, well hydraulics, and groundwater exploration.
6. Application of Geophysics in Groundwater Prospecting:
i) Surface Investigation method for groundwater investigation and exploration in soft sediments, semi consolidated, and consolidated formations – Geo-electrical, seismic, gravity, and magnetic method.
ii) Application of borehole geophysics for groundwater resources investigation and exploration.
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