Showing posts with label GATE-2012. Show all posts
Showing posts with label GATE-2012. Show all posts

Tuesday, September 13, 2011

GATE 2012- Syllabus for Agricultural Engineering (AG)

Graduate Aptitude Test in Engineering - GATE 2012

Last Date : 17 October 2011 (Apply Online)
Start Date : 12 September 2011

Organizing Institute : Indian Institute of Technology Delhi

Graduate Aptitude Test in Engineering (GATE) is an all India examination administered and conducted jointly by the Indian Institute of Science and seven Indian Institutes of Technology on behalf of the National Coordination Board - GATE, Department of Higher Education, Ministry of Human Resource Development (MHRD), Government of India.

Candidates have to Apply only ONLINE. The application fee is Rs 1000/- for GENERAL/OBC/ category and Rs 500/- for SC/ST/PD category candidates.
Date of Online Examination: 29-01-2012 (Sunday)       
Date of Offline Examination: 12-02-2012 (Sunday)


Syllabus for Agricultural Engineering (AG)

Engineering Mathematics
Algebra:
Matrices and Determinants, Systems of linear equations, Eigen values and eigen vectors.
Calculus:
Limit, continuity and differentiability; Partial Derivatives; Maxima and minima; Sequences and series; Test for convergence; Fourier series.
Vector Calculus:
Gradient; Divergence and Curl; Line; surface and volume integrals; Stokes, Gauss and Green's theorems.
Differential Equations:
Linear and non-linear first order ODEs; Higher order linear ODEs with constant coefficients; Cauchy's and Euler's equations; Laplace transforms; PDEs - Laplace, heat and wave equations.
Probability and Statistics:
Mean, median, mode and standard deviation; Random variables; Poisson, normal and binomial distributions; Correlation and regression analysis.
Numerical Methods:
Solutions of linear and non-linear algebraic equations; integration of trapezoidal and Simpson's rule; single and multi-step methods for differential equations.
Farm Machinery and Power
Sources of power on the farm-human, animal, mechanical, electrical, wind, solar and biomass; bio-fuels; design and selection of machine elements - gears, pulleys, chains and sprockets and belts; overload safety devices used in farm machinery; measurement of force, torque, speed, displacement and acceleration on machine elements.
Soil tillage; forces acting on a tillage tool; hitch systems and hitching of tillage implements; mechanics of animal traction; functional requirements, principles of working, construction and operation of manual, animal and power operated equipment for tillage, sowing, planting, fertilizer application, inter-cultivation, spraying, mowing, chaff cutting, harvesting, threshing and transport; testing of agricultural machinery and equipment; calculation of performance parameters -field capacity, efficiency, application rate and losses; cost analysis of implements and tractors
Thermodynamic principles of I.C. engines; I.C. engine cycles; engine components; fuels and combustion; lubricants and their properties; I.C. engine systems - fuel, cooling, lubrication, ignition, electrical, intake and exhaust; selection, operation, maintenance and repair of I.C. engines; power efficiencies and measurement; calculation of power, torque, fuel consumption, heat load and power losses.
Tractors and power tillers - type, selection, maintenance and repair; tractor clutches and brakes; power transmission systems - gear trains, differential, final drives and power take-off; mechanics of tractor chassis; traction theory; three point hitches- free link and restrained link operations; mechanical steering and hydraulic control systems used in tractors; human engineering and safety in tractor design; tractor tests and performance.
Soil and Water Conservation Engineering
Ideal and real fluids, properties of fluids; hydrostatic pressure and its measurement; hydrostatic forces on plane and curved surface; continuity equation; Bernoulli's theorem; laminar and turbulent flow in pipes, Darcy- Weisbach and Hazen-Williams equations, Moody's diagram; flow through orifices and notches; flow in open channels.
Engineering properties of soils; fundamental definitions and relationships; index properties of soils; permeability and seepage analysis; shear strength, Mohr's circle of stress, active and passive earth pressures; stability of slopes.
Hydrological cycle; meteorological parameters and their measurement, analysis of precipitation data; abstraction from precipitation; runoff; hydrograph analysis, unit hydrograph theory and application; stream flow measurement; flood routing, hydrological reservoir and channel routing.
Measurement of distance and area; chain surveying, methods of traversing; measurement of angles and bearings, plane table surveying; types of levelling; contouring; instruments for surveying and levelling; computation of earth work.
Mechanics of soil erosion, soil erosion types; wind and water erosion; factors affecting erosion; soil loss estimation; biological and engineering measures to control erosion; terraces and bunds; vegetative waterways; gully control structures, drop, drop inlet and chute spillways; earthen dams; water harvesting structures, farm ponds, watershed management.
Soil-water-plant relationship, water requirement of crops; consumptive use and evapotranspiration; irrigation scheduling; irrigation efficiencies; design of irrigation channels; measurement of soil moisture, irrigation water and infiltration; surface, sprinkler and drip methods of irrigation; design and evaluation of irrigation methods.
Drainage coefficient; planning, design and layout of surface and sub-surface drainage systems; leaching requirement and salinity control; irrigation and drainage water quality.
Groundwater occurrence confined and unconfined aquifers, evaluation of aquifer properties; well hydraulics; groundwater recharge.
Classification of pumps; pump characteristics; pump selection and installation.
Agricultural Processing and Food Engineering
Steady state heat transfer in conduction, convection and radiation; transient heat transfer in simple geometry; condensation and boiling heat transfer; working principles of heat exchangers; diffusive and convective mass transfer; simultaneous heat and mass transfer in agricultural processing operations.
Material and energy balances in food processing systems; water activity, sorption and desorption isotherms; centrifugal separation of solids, liquids and gases; kinetics of microbial death - pasteurization and sterilization of liquid foods; preservation of food by cooling and freezing; refrigeration and cold storage basics and applications; psychrometry - properties of air-vapour mixture; concentration and drying of liquid foods - evaporators, tray, drum and spray dryers.
Mechanics and energy requirement in size reduction of granular solids; particle size analysis for comminuted solids; size separation by screening; fluidization of granular solids-pneumatic, bucket, screw and belt conveying; cleaning and grading; Effectiveness of grain cleaners.
Hydrothermal treatment, drying and milling of cereals, pulses and oilseeds; Processing of seeds, spices, fruits and vegetables; By-product utilization from processing industries.
Controlled and modified atmosphere storage; Perishable food storage, godowns, bins and grain silos.

GATE 2012 - Syllabus for Biotechnology (BT)

Graduate Aptitude Test in Engineering - GATE 2012

Last Date : 17 October 2011 (Apply Online)
Start Date : 12 September 2011

Organizing Institute : Indian Institute of Technology Delhi

Graduate Aptitude Test in Engineering (GATE) is an all India examination administered and conducted jointly by the Indian Institute of Science and seven Indian Institutes of Technology on behalf of the National Coordination Board - GATE, Department of Higher Education, Ministry of Human Resource Development (MHRD), Government of India.

Candidates have to Apply only ONLINE. The application fee is Rs 1000/- for GENERAL/OBC/ category and Rs 500/- for SC/ST/PD category candidates.
Date of Online Examination: 29-01-2012 (Sunday)       
Date of Offline Examination: 12-02-2012 (Sunday)


Syllabus for Biotechnology (BT)

Engineering Mathematics
Linear Algebra:
Matrices and determinants, Systems of linear equations, Eigen values and Eigen vectors.
Calculus:
Limit, continuity and differentiability, Partial derivatives, Maxima and minima, Sequences and series, Test for convergence, Fourier Series.
Differential Equations:
Linear and nonlinear first order ODEs, higher order ODEs with constant coefficients, Cauchy’s and Euler’s equations, Laplace transforms, PDE- Laplace, heat and wave equations.
Probability and Statistics:
Mean, median, mode and standard deviation, Random variables, Poisson, normal and binomial distributions, Correlation and regression analysis.
Numerical Methods:
Solution of linear and nonlinear algebraic equations, Integration of trapezoidal and Simpson’s rule, Single and multistep methods for differential equations.
Biotechnology
Microbiology:
Prokaryotic and eukaryotic cell structure; Microbial nutrition, growth and control; Microbial metabolism (aerobic and anaerobic respiration, photosynthesis); Nitrogen fixation; Chemical basis of mutations and mutagens; Microbial genetics (plasmids, transformation, transduction, conjugation); Microbial diversity and characteristic features; Viruses.
Biochemistry:
Biomolecules and their conformation; Ramachandran map; Weak inter-molecular interactions in biomacromolecules; Chemical and functional nature of enzymes; Kinetics of single substrate and bi-substrate enzyme catalyzed reactions; Bioenergetics; Metabolism (Glycolysis, TCA and Oxidative phosphorylation); Membrane transport and pumps; Cell cycle and cell growth control; Cell signaling and signal transduction; Biochemical and biophysical techniques for macromolecular analysis.
Molecular Biology and Genetics:
Molecular structure of genes and chromosomes; DNA replication and control; Transcription and its control; Translational processes; Regulatory controls in prokaryotes and eukaryotes; Mendelian inheritance; Gene interaction; Complementation; Linkage, recombination and chromosome mapping; Extrachromosomal inheritance; Chromosomal variation; Population genetics; Transposable elements, Molecular basis of genetic diseases and applications.
Process Biotechnology:
Bioprocess technology for the production of cell biomass and primary/secondary metabolites, such as baker’s yeast, ethanol, citric acid, amino acids, exo-polysacharides, antibiotics and pigments etc.; Microbial production, purification and bioprocess application(s) of industrial enzymes; Production and purification of recombinant proteins on a large scale; Chromatographic and membrane based bioseparation methods; Immobilization of enzymes and cells and their application for bioconversion processes. Aerobic and anaerobic biological processes for stabilization of solid / liquid wastes; Bioremediation.
Bioprocess Engineering:
Kinetics of microbial growth, substrate utilization and product formation; Simple structured models; Sterilization of air and media; Batch, fed-batch and continuous processes; Aeration and agitation; Mass transfer in bioreactors; Rheology of fermentation fluids; Scale-up concepts; Design of fermentation media; Various types of microbial and enzyme reactors; Instrumentation in bioreactors.
Plant and Animal Biotechnology:
Special features and organization of plant cells; Totipotency; Regeneration of plants; Plant products of industrial importance; Biochemistry of major metabolic pathways and products; Autotrophic and heterotrophic growth; Plant growth regulators and elicitors; Cell suspension culture development: methodology, kinetics of growth and production formation, nutrient optimization; Production of secondary metabolites by plant suspension cultures; Hairy root cultures and their cultivation. Techniques in raising transgencies.
Characteristics of animal cells:
Metabolism, regulation and nutritional requirements for mass cultivation of animal cell cultures; Kinetics of cell growth and product formation and effect of shear force; Product and substrate transport; Micro & macro-carrier culture; Hybridoma technology; Live stock improvement; Cloning in animals; Genetic engineering in animal cell culture; Animal cell preservation.
Immunology:
The origin of immunology; Inherent immunity; Humoral and cell mediated immunity; Primary and secondary lymphoid organ; Antigen; B and T cells and Macrophages; Major histocompatibility complex (MHC); Antigen processing and presentation; Synthesis of antibody and secretion; Molecular basis of antibody diversity; Polyclonal and monoclonal antibody; Complement; Antigen-antibody reaction; Regulation of immune response; Immune tolerance; Hyper sensitivity; Autoimmunity; Graft versus host reaction.
Recombinant DNA Technology:
Restriction and modification enzymes; Vectors: plasmid, bacteriophage and other viral vectors, cosmids, Ti plasmid, yeast artificial chromosome; cDNA and genomic DNA library; Gene isolation; Gene cloning; Expression of cloned gene; Transposons and gene targeting; DNA labeling; DNA sequencing; Polymerase chain reactions; DNA fingerprinting; Southern and northern blotting; In-situ hybridization; RAPD; RFLP; Site-directed mutagenesis; Gene transfer technologies; Gene therapy.
Bioinformatics:
Major bioinformatics resources (NCBI, EBI, ExPASy); Sequence and structure databases; Sequence analysis (biomolecular sequence file formats, scoring matrices, sequence alignment, phylogeny); Genomics and Proteomics (Large scale genome sequencing strategies; Comparative genomics; Understanding DNA microarrays and protein arrays); Molecular modeling and simulations (basic concepts including concept of force fields).

GATE 2012- Syllabus for Architecture and Planning (AR)

Graduate Aptitude Test in Engineering - GATE 2012

Last Date : 17 October 2011 (Apply Online)
Start Date : 12 September 2011

Organizing Institute : Indian Institute of Technology Delhi

Graduate Aptitude Test in Engineering (GATE) is an all India examination administered and conducted jointly by the Indian Institute of Science and seven Indian Institutes of Technology on behalf of the National Coordination Board - GATE, Department of Higher Education, Ministry of Human Resource Development (MHRD), Government of India.

Candidates have to Apply only ONLINE. The application fee is Rs 1000/- for GENERAL/OBC/ category and Rs 500/- for SC/ST/PD category candidates.
Date of Online Examination: 29-01-2012 (Sunday)       
Date of Offline Examination: 12-02-2012 (Sunday)


SYLLABUS/SCHEME OF EXAMINATION FOR GATE - 2012
Syllabus for Architecture and Planning (AR)

City planning:
Evolution of cities; principles of city planning; types of cities & new towns; planning regulations and building byelaws; eco-city concept; sustainable development.
Housing:
Concept of housing; neighbourhood concept; site planning principles; housing typology; housing standards; housing infrastructure; housing policies, finance and management; housing programs in India; self help housing.
Landscape Design:
Principles of landscape design and site planning; history of landscape styles; landscape elements and materials; plant characteristics & planting design; environmental considerations in landscape planning.
Computer Aided Design:
Application of computers in architecture and planning; understanding elements of hardware and software; computer graphics; programming languages  C and Visual Basic and usage of packages such as AutoCAD, 3D-Studio, 3D Max.
Environmental Studies in Building Science:
Components of Ecosystem; ecological principles concerning environment; climate responsive design; energy efficient building design; thermal comfort; solar architecture; principles of lighting and styles for illumination; basic principles of architectural acoustics; environment pollution, their control & abatement.
Visual and Urban Design:
Principles of visual composition; proportion, scale, rhythm, symmetry, harmony, datum, balance, form, colour, texture; sense of place and space, division of space; barrier free design; focal point, vista, image ability, visual survey, figure-background relationship.

History of Architecture:
Indian  Indus valley, Vedic, Buddhist, Indo-Aryan, Dravidian and Mughal periods; European Egyptian, Greek, Roman, medieval and renaissance periods- construction and architectural styles; vernacular and traditional architecture.

Development of Contemporary Architecture:
Architectural developments and impacts on society since industrial revolution; influence of modern art on architecture; works of national and international architects; art novuea, eclecticism, international styles, post modernism, deconstruction in architecture.

Building Services:
Water supply, sewerage and drainage systems; sanitary fittings and fixtures; plumbing systems, principles of internal & external drainage systems, principles of electrification of buildings, intelligent buildings; elevators & escalators, their standards and uses; air-conditioning systems; fire fighting systems, building safety and security systems.

Building Construction and Management:
Building construction techniques, methods and details; building systems and prefabrication of building elements; principles of modular coordination; estimation, specification, valuation, professional practice; project management techniques e.g., PERT, CPM etc;

Materials and Structural Systems:
Behavioural characteristics of all types of building materials e.g. mud, timber, bamboo, brick, concrete, steel, glass, FRP, different polymers, composites; principles of strength of materials; design of structural elements in wood, steel and RCC; elastic and limit state design; complex structural systems; principles of pre-stressing; tall buildings; principles of disaster resistant structures.

Planning Theory:
Regional planning; settlement system planning; history of human settlements; growth of cities & metropolises; principles of Ekistics; rural-urban migration; urban conservation; urban renewal; Five-year plan; structural and sectoral plan.

Techniques of Planning:
Planning survey techniques; preparation of urban and regional structure plans, development plans, action plans; site planning principles and design; statistical methods of data analysis; application of G.I.S and remote sensing techniques in urban and regional planning; decision making models.

Traffic and Transportation Planning:
Principles of traffic engineering and transportation planning; traffic survey methods; design of roads, intersections, grade separators and parking areas; hierarchy of roads and levels of services; traffic and transport management in urban areas, intelligent transportation system; mass transportation planning; para-transits and other modes of transportation, pedestrian & slow moving traffic planning.

Infrastructure, Services and Amenities:
Principles of water supply and sanitation systems; water treatment; solid waste disposal systems; waste treatment, recycle & reuse; urban rainwater harvesting; power supply and communication systems --- network, design & guidelines; demography related standards at various levels of the settlements for health, education, recreation, religious & public-semi public facilities.

Development Administration and Management:
Planning laws; development control and zoning regulations; laws relating to land acquisition; development enforcements, urban land ceiling; land management techniques; planning and municipal administration; disaster mitigation management; 73rd & 74th Constitutional amendments; valuation & taxation; revenue resources and fiscal management; public participation and role of NGO & CBO; Institutional networking & capacity building.

GATE 2012 Last Date:17-October-2011 SCHEME SYLLABUS of EXAM

Graduate Aptitude Test in Engineering - GATE 2012

Last Date : 17 October 2011 (Apply Online)
Start Date : 12 September 2011

Organizing Institute : Indian Institute of Technology Delhi

Graduate Aptitude Test in Engineering (GATE) is an all India examination administered and conducted jointly by the Indian Institute of Science and seven Indian Institutes of Technology on behalf of the National Coordination Board - GATE, Department of Higher Education, Ministry of Human Resource Development (MHRD), Government of India.

Candidates have to Apply only ONLINE. The application fee is Rs 1000/- for GENERAL/OBC/ category and Rs 500/- for SC/ST/PD category candidates.
Date of Online Examination: 29-01-2012 (Sunday)       
Date of Offline Examination: 12-02-2012 (Sunday)


SYLLABUS/SCHEME OF EXAMINATION FOR GATE - 2012

A candidate can apply for only ONE of the 21 papers listed in the table given below. In the tables given below, the columns titled 'Paper Title' and 'Title of the Section' provide links to the appropriate syllabus.
The choice of the appropriate paper is the responsibility of the candidate. Some guidelines in this respect are suggested below.
The candidate is expected to appear in a paper appropriate to the discipline of his/her qualifying degree. The candidate is, however, free to choose any paper according to his/her admission plan, keeping in mind the eligibility criteria of the institutions in which he/she wishes to seek admission.
Requests for change of GATE Examination paper after the submission of Application Form will not be considered.

Code Paper Title
AE Aerospace Engineering 
AG Agricultural Engineering 
AR Architecture and Planning 
BT Biotechnology 
CE Civil Engineering 
CH Chemical Engineering 
CS Computer Science and Information Technology 
CY Chemistry 
EC Electronics and Communication Engineering 
EE Electrical Engineering 
GG Geology and Geophysics
IN Instrumentation Engineering 
MA Mathematics 
ME Mechanical Engineering 
MN Mining Engineering 
MT Metallurgical Engineering 
PH Physics 
PI Production and Industrial Engineering 
TF Textile Engineering and Fibre Science 
XE Engineering Sciences 
XL Life Sciences

XE (Engineering Sciences) and XL (Life Sciences) papers are of general nature and will comprise of the sections listed below. A candidate appearing in XE or XL paper will be required to answer three sections apart from the General Aptitude (GA) questions. Section A is compulsory in XE paper and Section H is compulsory in XL paper. The candidate can choose any two out of the remaining sections listed against the respective papers, at the time of examination
===============================
XE: Engineering Sciences 
---------------------------
Paper Section Title of the Section 
XE A Engineering Mathematics (Compulsory) 
XE B Fluid Mechanics 
XE C Materials Science 
XE D Solid Mechanics 
XE E Thermodynamics 
XE F Polymer Science and Engineering 
XE G Food Technology
----------------------------------
---------------------------------
XL: Life Sciences 
-----------------------------------
Paper Section Title of the Section
XL H Chemistry (Compulsory) 
XL I Biochemistry 
XL J Botany 
XL K Microbiology 
XL L Zoology 
XL M Food Technology
-------------------------------
=======================================
The GATE examination consists of a single paper of 3 hours duration which contains 65 questions carrying a maximum of 100 marks. The question paper will consist of only objective questions. In all papers other than AE, AG, AR, GG, MN and TF, all the questions are of multiple choice type. In AE, AG, AR, GG, MN and TF papers, the question paper will consist of questions of multiple choice type and also some questions of numerical answer type. For multiple choice type questions, each question will have four choices for the answer. For numerical answer type questions, each question will have a number as the answer. See below to view the pattern of question papers. The examination for the papers with codes AE, AG, AR, GG, MN and TF will be carried out ONLINE using computers where the candidates will be required to enter the answer for each question using mouse. For all other papers, the candidates will have to mark the correct choice on an Optical Response Sheet (ORS) by darkening the appropriate bubble against each question. There will be negative marking for each wrong answer, except for the numerical answer type questions.
Each GATE paper shall have a General Aptitude (GA) component carrying 15 marks
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Pattern of Question Papers and Marking 

The examination for the papers with codes AE, AG, AR, GG, MN and TF will be carried out ONLINE using computers where the candidates will be required to enter the answer for each question using mouse. For all other papers, the candidates will have to mark the correct choice on an Optical Response Sheet (ORS) by darkening the appropriate bubble against each question.
In the ONLINE papers, the question paper will consist of questions of multiple choice type and numerical answer type. For multiple choice type questions, each question will have four choices for the answer. For numerical answer type questions, each question will have a number as the answer and choices will not be given.
GATE 2012 would contain questions of four different types in various papers:
Multiple choice questions carrying 1 or 2 marks each.
Common data questions, where two successive questions use the same set of input data.
Linked answer questions, where the answer to the first question of the pair is required in order to answer its successor.
Numerical answer questions, where the answer is a number, to be entered by the candidate.
Examples of such questions can be found in Question Types.
In all the papers, there will be a total of 65 questions carrying 100 marks, out of which 10 questions carrying 15 marks in General Aptitude (GA) are compulsory.
In the papers bearing the codes AE, AG, BT, CE, CH, CS, EC, EE, GG, IN, ME, MN, MT, PI, TF and XE, the Engineering Mathematics will carry 15 % of the total marks, the General Aptitude section will carry 15 % of the total marks and the remaining 70 % of the total marks is devoted to the subject of the paper.
In the papers bearing the codes AR, CY, GG, MA, PH and XL, the General Aptitude section will carry 15 % of the total marks and the remaining 85 % of the total marks is devoted to the subject of the paper.

Marking
For 1 mark multiple choice questions, 1/3 mark will be deducted for a wrong answer. Likewise, for 2 marks multiple choice questions, 2/3 mark will be deducted for a wrong answer. However, for the linked answer question pair, where each question carries 2 marks, 2/3 mark will be deducted for a wrong answer to the first question only. There is no negative marking for wrong answer to the second question of the linked answer question pair. If the first question in the linked pair is wrongly answered or is unattempted, then the answer to the second question in the pair will not be evaluated. There is no negative marking for numerical answer type questions.

Pattern of Question Papers
General Aptitude (GA) Section:
In all papers, GA questions are of multiple choice type, and carry a total of 15 marks. The GA section includes 5 questions carrying 1 mark each (sub-total 5 marks) and 5 questions carrying 2-marks each (sub-total 10 marks)
Question papers other than GG, XE and XL:
These papers would contain 25 multiple choice questions carrying one mark each (sub-total 25 marks) and 30 multiple choice questions carrying two marks each (sub-total 60 marks). Out of these, two pairs of questions would be common data questions, and two pairs of questions would be linked-answer questions. In the ONLINE papers, the question paper will consist of questions of multiple choice type and numerical answer type. For multiple choice type questions, each question will have four choices for the answer. For numerical answer type questions, each question will have a number as the answer and choices will not be given.
GG (Geology and Geophysics) Paper:
Apart from the General Aptitude (GA) section, the question paper consists of two parts: Part A and Part B. Part A is common for all candidates. Part B contains two sections: Section 1 (Geology) and Section 2 (Geo-physics). Candidates will have to attempt questions in Part A and either Section 1 or Section 2 in Part B.
Part A consists of 25 multiple choice questions carrying 1-mark each (sub-total 25 marks). Each section in Part B (Section 1 and Section 2) consists of 30 multiple choice questions carrying 2-marks each (sub-total 60 marks). Out of these, two pairs of questions would be common data questions, and two pairs of questions would be linked-answer questions.
XE Paper (Engineering Sciences):
In XE paper, Engineering Mathematics section (Section A) is compulsory. This section contains 11 multiple choice questions carrying a total of 15 marks: 7 questions carrying 1-mark each (sub-total 7 marks), and 4 questions carrying 2-marks each (sub-total 8 marks).
Each of the other sections of the XE paper (Sections B through G) contains 22 questions carrying a total of 35 marks: 9 questions carrying 1-mark each (sub-total 9 marks) and 13 questions carrying 2-marks each (sub-total 26 marks). Out of the 2-mark questions, 2 pairs are common data questions and 1 pair is linked answer questions.
XL Paper (Life Sciences):
In XL paper, Chemistry section (Section H) is compulsory. This section contains 15 multiple choice questions carrying a total of 25 marks: 5 questions carrying 1 mark each (sub-total 5 marks) and 10 questions carrying 2-marks each (sub-total 20 marks). Out of the 2-mark questions, 1 pair is common data questions, and 1 pair is linked answer questions.
Each of the other sections of the XL paper (Sections I through M) contains 20 multiple choice questions carrying a total of 30 marks: 10 questions carrying 1-mark each (sub-total 10 marks) and 10 questions carrying 2-marks each (sub-total 20 marks).
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GATE 2012 Question Types


Multiple Choice Questions
Multiple choice questions in all papers and sections will contain four answers, of which only one is correct. The types of questions in a paper may be based on following logic:
(i) Recall:
These are based on facts, principles, formulae or laws of the discipline. The candidate is expected to be able to obtain the answer either from his/her memory of the subject or at most from a one-line computation.
Example
Q. During machining maximum heat is produced
(A) in flank face       (B) in rake face
(C) in shear zone     (D) due to friction between chip and tool.

(ii) Comprehension:
 These questions will test the candidate's understanding of the basics of his/her field, by requiring him/her to draw simple conclusions from fundamental ideas.
Example
Q. A DC motor requires a starter in order
(A) to develop a starting torque
(B) to compensate for auxiliary field ampere turns
(C) to limit armature current at starting
(D) to provide regenerative braking

(iii) Application:
In these questions, the candidate is expected to apply his/her knowledge either through computation or by logical reasoning.
Example:
Q. The sequent depth ratio of a hydraulic jump in a rectangular channel is 16.48. The Froude number at the beginning of the jump is:
(A)  10.0  (B) 5.0
(C)  12.0  (D) 8.0
(iv) Analysis and Synthesis:
These can be linked questions, where the answer to the first question of the pair is required in order to answer its successor. Or these can be common data questions, in which two questions share the same data but can be solved independently of one another.

Common data questions



Example
Common Data, for instance, Questions 48 and 49 in main paper:
Let X and Y be jointly distributed random variables such that the conditional distribution of Y, given X=x, is uniform on the interval (x-1,x+1). Suppose E(X)=1 and Var(X)= 5/3
First question using common data:
Q.48 The mean of the random variable Y is
(A) 1/2  (B) 1   (C) 3/2       (D) 2
Second question using common data:
First question of the pair:
Q.52 The value of K which will cause sustained oscillations in the closed loop system is

Second question of the pair:
Q.53 The frequency of sustained oscillations is

The questions based on the above four logics may be a mix of single stand alone statement / phrase / data type questions, combination of option codes type questions or match items types questions.
========================================================
The examination for the papers with codes AE, AG, AR, GG, MN and TF will be carried out ONLINE using computers where the candidates will be required to enter the answer for each question using mouse. For all other papers, the candidates will have to mark the correct choice on an Optical Response Sheet (ORS) by darkening the appropriate bubble against each question.
In the ONLINE papers, the question paper will consist of questions of multiple choice type and numerical answer type. For multiple choice type questions, each question will have four choices for the answer. For numerical answer type questions, each question will have a number as the answer and choices will not be given.
GATE 2012 would contain questions of four different types in various papers:
  • Multiple choice questions carrying 1 or 2 marks each.
  • Common data questions, where two successive questions use the same set of input data.
  • Linked answer questions, where the answer to the first question of the pair is required in order to answer its successor.
  • Numerical answer questions, where the answer is a number, to be entered by the candidate.

Examples of such questions can be found in Question Types.
In all the papers, there will be a total of 65 questions carrying 100 marks, out of which 10 questions carrying 15 marks in General Aptitude (GA) are compulsory.
In the papers bearing the codes AE, AG, BT, CE, CH, CS, EC, EE, GG, IN, ME, MN, MT, PI, TF and XE, the Engineering Mathematics will carry 15 % of the total marks, the General Aptitude section will carry 15 % of the total marks and the remaining 70 % of the total marks is devoted to the subject of the paper.
In the papers bearing the codes AR, CY, GG, MA, PH and XL, the General Aptitude section will carry 15 % of the total marks and the remaining 85 % of the total marks is devoted to the subject of the paper
--------------------------------
Marking
For 1 mark multiple choice questions, 1/3 mark will be deducted for a wrong answer. Likewise, for 2 marks multiple choice questions, 2/3 mark will be deducted for a wrong answer. However, for the linked answer question pair, where each question carries 2 marks, 2/3 mark will be deducted for a wrong answer to the first question only. There is no negative marking for wrong answer to the second question of the linked answer question pair. If the first question in the linked pair is wrongly answered or is unattempted, then the answer to the second question in the pair will not be evaluated. There is no negative marking for numerical answer type questions.
----------------------------------
Pattern of Question Papers
General Aptitude (GA) Section:
In all papers, GA questions are of multiple choice type, and carry a total of 15 marks. The GA section includes 5 questions carrying 1 mark each (sub-total 5 marks) and 5 questions carrying 2-marks each (sub-total 10 marks)
Question papers other than GG, XE and XL:
These papers would contain 25 multiple choice questions carrying one mark each (sub-total 25 marks) and 30 multiple choice questions carrying two marks each (sub-total 60 marks). Out of these, two pairs of questions would be common data questions, and two pairs of questions would be linked-answer questions. In the ONLINE papers, the question paper will consist of questions of multiple choice type and numerical answer type. For multiple choice type questions, each question will have four choices for the answer. For numerical answer type questions, each question will have a number as the answer and choices will not be given.
GG (Geology and Geophysics) Paper:
Apart from the General Aptitude (GA) section, the question paper consists of two parts: Part A and Part B. Part A is common for all candidates. Part B contains two sections: Section 1 (Geology) and Section 2 (Geo-physics). Candidates will have to attempt questions in Part A and either Section 1 or Section 2 in Part B.
Part A consists of 25 multiple choice questions carrying 1-mark each (sub-total 25 marks). Each section in Part B (Section 1 and Section 2) consists of 30 multiple choice questions carrying 2-marks each (sub-total 60 marks). Out of these, two pairs of questions would be common data questions, and two pairs of questions would be linked-answer questions.
XE Paper (Engineering Sciences):
In XE paper, Engineering Mathematics section (Section A) is compulsory. This section contains 11 multiple choice questions carrying a total of 15 marks: 7 questions carrying 1-mark each (sub-total 7 marks), and 4 questions carrying 2-marks each (sub-total 8 marks).
Each of the other sections of the XE paper (Sections B through G) contains 22 questions carrying a total of 35 marks: 9 questions carrying 1-mark each (sub-total 9 marks) and 13 questions carrying 2-marks each (sub-total 26 marks). Out of the 2-mark questions, 2 pairs are common data questions and 1 pair is linked answer questions.
XL Paper (Life Sciences):
In XL paper, Chemistry section (Section H) is compulsory. This section contains 15 multiple choice questions carrying a total of 25 marks: 5 questions carrying 1 mark each (sub-total 5 marks) and 10 questions carrying 2-marks each (sub-total 20 marks). Out of the 2-mark questions, 1 pair is common data questions, and 1 pair is linked answer questions.
Each of the other sections of the XL paper (Sections I through M) contains 20 multiple choice questions carrying a total of 30 marks: 10 questions carrying 1-mark each (sub-total 10 marks) and 10 questions carrying 2-marks each (sub-total 20 marks).
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Pattern of Question Papers and Marking 

The examination for the papers with codes AE, AG, AR, GG, MN and TF will be carried out ONLINE using computers where the candidates will be required to enter the answer for each question using mouse. For all other papers, the candidates will have to mark the correct choice on an Optical Response Sheet (ORS) by darkening the appropriate bubble against each question.
In the ONLINE papers, the question paper will consist of questions of multiple choice type and numerical answer type. For multiple choice type questions, each question will have four choices for the answer. For numerical answer type questions, each question will have a number as the answer and choices will not be given.
GATE 2012 would contain questions of four different types in various papers:
  • Multiple choice questions carrying 1 or 2 marks each.
  • Common data questions, where two successive questions use the same set of input data.
  • Linked answer questions, where the answer to the first question of the pair is required in order to answer its successor.
  • Numerical answer questions, where the answer is a number, to be entered by the candidate.

Examples of such questions can be found in Question Types.
In all the papers, there will be a total of 65 questions carrying 100 marks, out of which 10 questions carrying 15 marks in General Aptitude (GA) are compulsory.
In the papers bearing the codes AE, AG, BT, CE, CH, CS, EC, EE, GG, IN, ME, MN, MT, PI, TF and XE, the Engineering Mathematics will carry 15 % of the total marks, the General Aptitude section will carry 15 % of the total marks and the remaining 70 % of the total marks is devoted to the subject of the paper.
In the papers bearing the codes AR, CY, GG, MA, PH and XL, the General Aptitude section will carry 15 % of the total marks and the remaining 85 % of the total marks is devoted to the subject of the paper
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Marking
For 1 mark multiple choice questions, 1/3 mark will be deducted for a wrong answer. Likewise, for 2 marks multiple choice questions, 2/3 mark will be deducted for a wrong answer. However, for the linked answer question pair, where each question carries 2 marks, 2/3 mark will be deducted for a wrong answer to the first question only. There is no negative marking for wrong answer to the second question of the linked answer question pair. If the first question in the linked pair is wrongly answered or is unattempted, then the answer to the second question in the pair will not be evaluated. There is no negative marking for numerical answer type questions.
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Pattern of Question Papers
General Aptitude (GA) Section:
In all papers, GA questions are of multiple choice type, and carry a total of 15 marks. The GA section includes 5 questions carrying 1 mark each (sub-total 5 marks) and 5 questions carrying 2-marks each (sub-total 10 marks)
Question papers other than GG, XE and XL:
These papers would contain 25 multiple choice questions carrying one mark each (sub-total 25 marks) and 30 multiple choice questions carrying two marks each (sub-total 60 marks). Out of these, two pairs of questions would be common data questions, and two pairs of questions would be linked-answer questions. In the ONLINE papers, the question paper will consist of questions of multiple choice type and numerical answer type. For multiple choice type questions, each question will have four choices for the answer. For numerical answer type questions, each question will have a number as the answer and choices will not be given.
GG (Geology and Geophysics) Paper:
Apart from the General Aptitude (GA) section, the question paper consists of two parts: Part A and Part B. Part A is common for all candidates. Part B contains two sections: Section 1 (Geology) and Section 2 (Geo-physics). Candidates will have to attempt questions in Part A and either Section 1 or Section 2 in Part B.
Part A consists of 25 multiple choice questions carrying 1-mark each (sub-total 25 marks). Each section in Part B (Section 1 and Section 2) consists of 30 multiple choice questions carrying 2-marks each (sub-total 60 marks). Out of these, two pairs of questions would be common data questions, and two pairs of questions would be linked-answer questions.
XE Paper (Engineering Sciences):
In XE paper, Engineering Mathematics section (Section A) is compulsory. This section contains 11 multiple choice questions carrying a total of 15 marks: 7 questions carrying 1-mark each (sub-total 7 marks), and 4 questions carrying 2-marks each (sub-total 8 marks).
Each of the other sections of the XE paper (Sections B through G) contains 22 questions carrying a total of 35 marks: 9 questions carrying 1-mark each (sub-total 9 marks) and 13 questions carrying 2-marks each (sub-total 26 marks). Out of the 2-mark questions, 2 pairs are common data questions and 1 pair is linked answer questions.
XL Paper (Life Sciences):
In XL paper, Chemistry section (Section H) is compulsory. This section contains 15 multiple choice questions carrying a total of 25 marks: 5 questions carrying 1 mark each (sub-total 5 marks) and 10 questions carrying 2-marks each (sub-total 20 marks). Out of the 2-mark questions, 1 pair is common data questions, and 1 pair is linked answer questions.
Each of the other sections of the XL paper (Sections I through M) contains 20 multiple choice questions carrying a total of 30 marks: 10 questions carrying 1-mark each (sub-total 10 marks) and 10 questions carrying 2-marks each (sub-total 20 marks).
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GATE 2012 Question Types 


Multiple Choice Questions
Multiple choice questions in all papers and sections will contain four answers, of which only one is correct. The types of questions in a paper may be based on following logic:
(i) Recall:
These are based on facts, principles, formulae or laws of the discipline. The candidate is expected to be able to obtain the answer either from his/her memory of the subject or at most from a one-line computation.
Example
Q. During machining maximum heat is produced
(A) in flank face       (B) in rake face
(C) in shear zone     (D) due to friction between chip and tool.

(ii) Comprehension:
 These questions will test the candidate's understanding of the basics of his/her field, by requiring him/her to draw simple conclusions from fundamental ideas.
Example
Q. A DC motor requires a starter in order
(A) to develop a starting torque
(B) to compensate for auxiliary field ampere turns
(C) to limit armature current at starting
(D) to provide regenerative braking

(iii) Application:
In these questions, the candidate is expected to apply his/her knowledge either through computation or by logical reasoning.
Example:
Q. The sequent depth ratio of a hydraulic jump in a rectangular channel is 16.48. The Froude number at the beginning of the jump is:
(A)  10.0  (B) 5.0
(C)  12.0  (D) 8.0
(iv) Analysis and Synthesis:
These can be linked questions, where the answer to the first question of the pair is required in order to answer its successor. Or these can be common data questions, in which two questions share the same data but can be solved independently of one another.
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Common data questions

Multiple questions may be linked to a common data problem, passage and the like. Two or three questions can be formed from the given common data problem. Each question is independent and its solution obtainable from the above problem data/passage directly. (Answer of the previous question is not required to solve the next question). Each question under this group will carry two marks.
Example
Common Data, for instance, Questions 48 and 49 in main paper:
Let X and Y be jointly distributed random variables such that the conditional distribution of Y, given X=x, is uniform on the interval (x-1,x+1). Suppose E(X)=1 and Var(X)= 5/3
First question using common data:
Q.48 The mean of the random variable Y is
(A) 1/2  (B) 1   (C) 3/2       (D) 2
Second question using common data:------------------------------------------------------------------
Syllabus for Aerospace Engineering (AE)

Engineering Mathematics
Linear Algebra:
Matrix algebra, systems of linear equations, eigen values and eigen vectors.
Calculus:
Functions of single variable, limit, continuity and differentiability, mean value theorems, evaluation of definite and improper integrals, partial derivatives, total derivative, maxima and minima, gradient, divergence and curl, vector identities, directional derivatives, line, surface and volume integrals. Theorems of Stokes, Gauss and Green.
Differential Calculus:
First order linear and nonlinear equations, higher order linear ODEs with constant coefficients, Cauchy and Euler equations, initial and boundary value problems, Laplace transforms. Partial differential equations and separation of variables methods.
Numerical methods:
Numerical solution of linear and nonlinear algebraic equations, integration by trapezoidal and Simpson rule, single and multi-step methods for differential equations.
Flight Mechanics
Atmosphere:
Properties, standard atmosphere. Classification of aircraft. Airplane (fixed wing aircraft) configuration and various parts.
Airplane performance:
Pressure altitude; equivalent, calibrated, indicated air speeds; Primary flight instruments: Altimeter, ASI, VSI, Turn-bank indicator. Drag polar; take off and landing; steady climb & descent,-absolute and service ceiling; cruise, cruise climb, endurance or loiter; load factor, turning flight, V-n diagram; Winds: head, tail & cross winds.
Static stability:
Angle of attack, sideslip; roll, pitch & yaw controls; longitudinal stick fixed & free stability, horizontal tail position and size; directional stability, vertical tail position and size; dihedral stability. Wing dihedral, sweep & position; hinge moments, stick forces.
Dynamic stability:
Euler angles; Equations of motion; aerodynamic forces and moments, stability & control derivatives; decoupling of longitudinal and lat-directional dynamics; longitudinal modes; lateral-directional modes.
Space Dynamics
Central force motion, determination of trajectory and orbital period in simple cases. Orbit transfer, in-plane and out-of-plane. Elements of rocket motor performance.
Aerodynamics
Basic Fluid Mechanics:
Incompressible irrotational flow, Helmholtz and Kelvin theorem, singularities and superposition, viscous flows, boundary layer on a flat plate.
Airfoils and wings:
Classification of airfoils, aerodynamic characteristics, high lift devices, Kutta Joukowski theorem; lift generation; thin airfoil theory; wing theory; induced drag; qualitative treatment of low aspect ratio wings.
Viscous Flows:
Flow separation, introduction to turbulence, transition, structure of a turbulent boundary layer.
Compressible Flows:
Dynamics and Thermodynamics of I-D flow, isentropic flow, normal shock, oblique shock, Prandtl-Meyer flow, flow in nozzles and diffusers, inviscid flow in a c-d nozzle, flow in diffusers. subsonic and supersonic airfoils, compressibility effects on lift and drag, critical and drag divergence Mach number, wave drag.
Wind Tunnel Testing:
Measurement and visualisation techniques.
Structures
Stress and Strain:
Equations of equilibrium, constitutive law, strain-displacement relationship, compatibility equations, plane stress and strain, Airy's stress function.
Flight Vehicle Structures:
Characteristics of aircraft structures and materials, torsion, bending and flexural shear. Flexural shear flow in thin-walled sections. Buckling. Failure theories. Loads on aircraft.
Structural Dynamics:
Free and forced vibration of discrete systems. Damping and resonance. Dynamics of continuous systems.
Propulsion
Thermodynamics of Aircraft Gas Turbine engines, thrust and thrust augmentation.
Turbomachinery:
Axial compressors and turbines, centrifugal pumps and compressors.
Aerothermodynamics of non rotating propulsion components:
Intakes, combustor and nozzle. Thermodynamics of ramjets and scramjets. Elements of rocket propulsion

Q.49 The variance of the random variable Y is
(A) 1/2       (B) 2/3       (C) 1       (D) 2
Q.49 The variance of the random variable Y is
(A) 1/2       (B) 2/3       (C) 1       (D) 2

Linked answer questions:
These questions are of problem solving type. A problem statement is followed by two questions based on the problem statement. The two questions are designed such that the solution to the second question depends upon the answer to the first one. In other words, the first answer is an intermediate step in working out the second answer. Each question in such linked answer questions will carry two marks.
Example:
Statement for Linked Answer Questions, for instance, for Questions 52 and 53 in Main Paper:
The open loop transfer function of a unity feedback control system is given by