GATE AEROSPACE Topic wise Weightage

GATE AEROSPACE Topic wise Weightage

While starting our preparation for GATE AEROSPACE, we should have a clear idea about what the syllabus is and what topics we should focus more. In this article we are trying to break down GATE AEROSPACE syllabus topic wise along with marks carried by each topic. This can help you in preparing a schedule for your preparation and you can allocate time accordingly depending upon the weightage of each topic. 

GATE AEROSPACE Exam consists of 65 questions, summing to 100 marks. Distribution is shown below:

QuestionsMarks
1 - 251 mark each
26 - 552 marks each
56 – 60 (General Aptitude)1 mark each
61 – 65 (General Aptitude)2 Marks each

GATE AEROSPACE Syllabus consists of 7 subjects, which are:

  1. Structures
  2. Propulsion
  3. Aerodynamics
  4. Flight Mechanics
  5. Space Mechanics
  6. Mathematics
  7. General Aptitude

You can see detailed syllabus in the link provided below:

https://www.goodwillgate2iit.com/study-material.html

Let’s start looking into each subject in detail. Distribution shown below is an estimate from previous year GATE question papers (2007 to 2019). Most of the times not all topics are covered in the question paper, e.g. Theory of failures is asked some 3 times till now in GATE Aerospace. Space Mechanics asked for 5 marks in 2018 but usual weightage is 1 to 2 marks.

  1. Structures (17 to 25 marks)
  • Basic Elasticity (7 to 8 marks)
  • Bending (7 to 8 marks)
  • Torsion (2 to 4 marks)
  • Columns (0 to 2 marks)
  • Theory of failures (0 to 2 marks)
  • Vibration (5 to 8 marks)

Propulsion (15 to 20 marks)

  1. Axial Flow Compressor (2 to 3 marks)
  2. Axial flow Turbine (0 to 2 marks)
  3. Centrifugal Flow Compressor (0 to 2 marks)
  4. Jet Propulsion (6 to 8 marks)
  5. Rocket Propulsion (6 to 8 marks)

 

  1. Aerodynamics (15 to 20 marks)
  2. Fluid Mechanics (2 to 4 marks)
  3. Ideal Potential Flow (1 to 2 marks)
  4. Low Speed Aerodynamics - Aerodynamic centre and COP (1 to 2 marks)
  5. Thin Airfoil Theory (1 to 2 marks)
  6. Finite wing theory (2 to 3 marks)
  7. Gas Dynamics (5 to 8 marks)
  8. Additional topics - High lift devices, Critical Mach number, Shock expansion theory, Linearized potential theory, Area rule, super critical airfoils etc. (2 to 3 marks)

 

  1. Flight Mechanics ( 12 to 15 marks)
  2. Atmosphere (1 to 2 marks)
  3. Speeds and measuring instruments (1 to 2 marks)
  4. Steady state and level flight (2 to 4 marks)
  5. Climbing (1 to 2 marks)
  6. Gliding (1 to 2 marks)
  7. Range and Endurance (1 to 2 marks)
  8. Take off / landing performance (1 to 2 marks)
  9. Turning flight (1 to 2 marks)
  10. Pull up/ pull down manoeuvre (1 to 2 marks)
  11. Longitudinal Static Stability (4 to 5 marks)
  12. Directional and Lateral Static Stability (1 to 2 marks)
  13. Dynamic Stability (2 to 3 marks)
  14. Equations of motion (1 to 2 marks)

 

  1. Space Mechanics (1 to 4 marks)
  2. Kepler’s law( 1 to 2 marks)
  3. In-plane orbital transfers (1 to 2 marks)
  4. Out of plane transfers (1 to 2 marks)

 

  1. Mathematics (12 to 15 marks)
  2. Linear Algebra (2 to 3 marks)
  3. Ordinary Differential Equations (2 to 3 marks)
  4. Partial Differential Equations (2 to 3 marks)
  5. Vector Calculus ( 2 to 3 marks)
  6. Laplace transformation (1 to 2 marks)
  7. Differential and Integral Calculus (3 to 4 marks)
  8. Numerical Technique ( 1 to 2 marks)

 

  1. General Aptitude
  2. Verbal Ability (4 to 5 marks)
  3. Numerical Ability ( 10 to 11 marks)

 

In the next few articles we will be covering what to cover in each topic and also the reference books topic wise, e.g.

Basic Elasticity 

  • Stress and Strain tensor
  • Principal stresses and strains
  • Plane stress and plane strain
  • Equilibrium equations
  • Generalized Hooke’s Law
  • Strain – displacements relations
  • Compatibility Conditions
  • Mohr’s Circle
  • Thin walled pressure vessels
  • Airy Stress Function
  • Stress vs Strain diagram
  • Thermal stresses

Books to refer for above topics

  1. Aircraft Structures  - T.H.G. Megson (Chapter -1)
  2. Strength of materials – S. Timoshenko (Chapter 1 and 2)

So plan your GATE AEROSPACE preparation keeping weightage of each topic in mind and allocate time accordingly.

Happy Learning and Study well!!!

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