GATE Aerospace Engineering Free Mock Test
GATE Aerospace Engineering Syllabus 2027, Exam Pattern
GATE Aerospace Engineer Syllabus 2027, Exam Pattern, Exam Date 2027
GATE Exam Highlights 2027
| Exam | Graduate Aptitude Test in Engineering (GATE) |
| Organization | Indian Institute of Technology (IIT) Madras |
| Application Mode | Online |
| Frequency of Examination | Annual |
| Exam Date 2027 | 06th, 07th, 13th, 14th, 20th & 21st February 2027 |
| Mode of Examination | Computer-Based Mode |
| Category | Syllabus and Exam Pattern |
| Purpose of Examination | Qualifying Examination for M.E./ M.Tech/ Ph.D admissions and PSU |
| Official Website | gate2027.iitm.ac.in |
GATE Aerospace Engineering Syllabus 2027
1. Basic English grammar
2. Tenses
3. Articles
4. Adjectives
5. Prepositions
6. Conjunctions
7. Verb-noun agreement and other parts of speech
8. Basic vocabulary
9. Words
10. Idioms
11. Phrases in context
12. Reading and comprehension
13. Narrative sequencing
Quantitative Aptitude
1. Data interpretation
2. Data graphs (bar graphs, pie charts, and other graphs representing data)
3. 2- and 3-dimensional plots
4. Maps
5. Tables
6. Numerical computation and estimation
7. Ratios
8. Percentages
9. Powers
10. Exponents and logarithms
11. Permutations and combinations
12. Series
13. Mensuration and geometry
14. Elementary statistics
15. Probability
Analytical Aptitude
1. Logic: deduction and induction
2. Analogy
3. Numerical relations and reasoning
Spatial Aptitude
1. Transformation of shapes
3. Translation
4. Rotation
5. Scaling
6. Mirroring
7. Assembling
8. Grouping
9. Paper folding
10. Cutting
11. Patterns in 2 and 3 dimensions
Calculus : Functions of single variable, limits, continuity and differentiability, chain rule, maxima and minima, Integration; Functions of several variables, partial derivatives, gradient, divergence and curl, directional derivatives; Line, surface and volume integrals. Theorems of Stokes, Gauss and Green.
Differential Equations : First order linear ordinary differential equations; Higher order linear ODEs with constant coefficients; Classification of partial differential equations; solution to: wave equation, Laplace equation, heat equation using separation of variables methods.
Numerical Methods : Numerical solutions for linear and nonlinear algebraic equations by bisection, NewtonRaphson method; basic numerical differentiation; numerical integration by trapezoidal and Simpson’s rules; linear regression and least squares method; linear interpolation.
Special Topics : Fourier series; complex numbers, analytic functions and Cauchy-Riemann equations.
Basics of probability and statistics: Bayes theorem, mean, median, & mode; variance; binomial, normal and Poisson distribution.
Core Topics:
Atmosphere: Properties of standard atmosphere. Classification of aircraft. Airplane (fixed wing aircraft) configuration and various parts; Pressure altitude;
equivalent, calibrated, indicated air speeds;
Primary flight instruments: Altimeter, air speed indicator, vertical speed indicator, turn-bank indicator. Aerodynamic forces and moments; angle of attack; sideslip;High-lift devices; roll, pitch & yaw controls.
Airplane performance: CL-alpha curve, drag polar; take-off and landing; steady climb and descent; absolute and service ceiling; range and endurance, load factor, turning flight, V-n diagram. Winds: head, tail and cross winds.
Static stability: stability and control derivatives; longitudinal stick fixed and free stability; horizontal tail position and size; directional stability, vertical tail position and size; lateral stability; wing dihedral, sweep & position;hinge moments, stick forces. Linear momentum and angular momentum balance for rigid bodies.
Space Dynamics: central force motion, Keplerian orbits, Kepler’s laws; escape velocity.
Special Topics:
Equations of motion; Euler angles; decoupling of longitudinal and lateral-directional dynamics; longitudinal modes; lateral-directional modes, Hohmann orbital transfers.
Section 3: Aerodynamics
Core Topics:
Basic fluid mechanics: fluid kinematics, streamline, streakline, pathline; conservation laws: mass, linear momentum and energy (integral and differential form); dimensional analysis and dynamic similarity; incompressibility conditions; Newtonian fluids.
Elementary ideas of viscous flows: Hagen-Poiseulle flow, Couette flow, basic concepts in boundary layers, boundary layer thickness.
Two-dimensional potential flow theory: sources, sinks, doublets, point vortex and their superposition, Bernoulli’s equation.
Airfoils and wings: airfoil nomenclature; aerodynamic coefficients: lift, drag and moment; Kutta-Joukoswki theorem; thin airfoil theory, Kutta condition, starting vortex; finite wing theory: induced drag, Prandtl lifting line theory; critical and drag divergence Mach numbers.
Compressible flows: basic concepts of compressibility, one-dimensional compressible flows, isentropic flows, normal and oblique shocks, Prandtl-Meyer flow; flow through nozzles and diffusers.
Special Topics: Fanno flow; Rayleigh flow; pressure measurements using U-tube manometers and Pitot probe.
Section 4: Structures
Core Topics:
Strength of materials: Stress and strain, stress-strain curves of steel and Aluminium; stresses and deflections in statically determinate and indeterminate linear elastic trusses, bars, beams, and shafts; two-dimensional transformations of stresses and strains, Mohr’s circle, principal stresses and strains; combined loading, failure criteria: maximum stress, Tresca, von Mises; strain energy; Castigliano’s principles; three-dimensional Hooke's law; plane stress and strain; Euler buckling of columns.
Flight vehicle structures: torsion, bending and shear of open and closed thin-walled sections: symmetric and unsymmetric cross-sections; loads on aircraft.
Structural Dynamics: free and forced vibrations of undamped and damped SDOF systems; free vibrations of undamped 2-DOF systems.
Special Topics: Equilibrium and compatibility equations in two-dimensional elasticity.
Section 5: Propulsion
Core Topics:
Basics of thermodynamics :
Aerothermodynamics of aircraft engines: thrust, efficiency, range. Brayton cycle. Engine performance: ramjet, turbojet, turbofan, turboprop and turboshaft engines; after-burners. Aerothermodynamics of non-rotating propulsion components such as intakes, nozzles.
Gas turbine combustor: types and configurations; combustion, stoichiometric fuel-to-air ratio
Turbomachinery: Axial compressors: angular momentum, work and compression, characteristic performance of a single axial compressor stage, efficiency of the compressor and degree of reaction, multi-staging; Centrifugal compressor: stage dynamics, inducer, impeller and diffuser; Axial turbines: stage performance.
Rockets: thrust equation and specific impulse, rocket performance; multi-staging; chemical rockets; performance
of solid and liquid propellant rockets.
Special Topics: Turbine blade cooling, compressor-turbine matching.
GATE Aerospace Engineering Exam Pattern 2027
| GATE Examination Mode | Computer-Based Test (CBT) |
| GATE Exam Language | English |
| GATE Duration | 3 Hours (180 Minutes) |
| GATE Sectional Time Limit | None |
| GATE Total Marks | 100 |
| GATE Total Number of questions | 65 |
| GATE Type of Questions | Multiple Choice Questions (MCQ)
Multiple Select Questions (MSQ);
Numerical Answer Type (NAT) Questions
|
| GATE Number of Sections | Two/ Three (depending on the paper) |
| GATE Section-wise Number of Questions |
General Aptitude- 10 questions,
Core Discipline- 55 questions
|
| GATE Section-wise Weightage |
General Aptitude- 15 marks,
Core Discipline- 85 marks
|
| GATE Marking Scheme | 1 or 2 marks for each correct answer |
| GATE Negative Marking |
For 1 mark MCQ, 1/3 mark will be deducted for a wrong answer;
For 2-mark MCQ, 2/3 mark will be deducted for a wrong answer;
No negative marking for MSQs and NATs
|
Duration : 180 Minutes
Negative Mark :
For 1 mark MCQ, 1/3 mark will be deducted for a wrong answer;
For 2-mark MCQ, 2/3 mark will be deducted for a wrong answer;
No negative marking for MSQs and NATs
| S.No | Subject | No.of Question | Marks |
| 1 | General Aptitude | 10 | 15 |
| 2 | Engineering Mathematics | 55 | 13 |
| Aerospace Engineering | 72 | ||
| Total | 65 | 100 |
| Subject | No.of Question | Marks per Question | Marks |
Engineering Mathematics & Aerospace Engineering |
25 | 1 | 25 |
| 30 | 2 | 60 | |
| Total | 55 | 85 |
Starting Date of Application Form : 02nd September 2026
Last Date of Application Form : 27th September 2026
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