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GATE 2024 AE – Previous Year Questions with Solutions

All 65 questions of GATE 2024 AE with answers and explanations. Read each question, then practise it by topic or as a full paper.

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  1. Question 1 (1 mark, Multiple choice) – If '→' denotes increasing order of intensity, then the meaning of the words [dry → arid → parched] is analogous to [diet → fast → ]. Which one of the…
  2. Question 2 (1 mark, Multiple choice) – If two distinct non-zero real variables x and y are such that (x+y) is proportional to (x-y) then the value of xy
  3. Question 3 (1 mark, Multiple choice) – Consider the following sample of numbers: 9, 18, 11, 14, 15, 17, 10, 69, 11, 13. The median of the sample is
  4. Question 4 (1 mark, Multiple choice) – The number of coins of ₹1, ₹5, and ₹10 denominations that a person has are in the ratio 5:3:13. Of the total amount, the percentage of money in ₹5…
  5. Question 5 (1 mark, Multiple choice) – For positive non-zero real variables p and q, if (p2+q2)= p+ q+2 3, then the value of p4+q4p2q2 is
  6. Question 6 (2 marks, Multiple choice) – In the given text, the blanks are numbered (i)−(iv). Select the best match for all the blanks. Steve was advised to keep his head (i) before heading…
  7. Question 7 (2 marks, Multiple choice) – A rectangular paper sheet of dimensions 54 cm × 4 cm is taken. The two longer edges of the sheet are joined together to create a cylindrical tube. A…
  8. Question 8 (2 marks, Multiple choice) – The pie chart presents the percentage contribution of different macronutrients to a typical 2,000 kcal diet of a person. The typical energy density…
  9. Question 9 (2 marks, Multiple choice) – A rectangular paper of 20 cm × 8 cm is folded 3 times. Each fold is made along the line of symmetry, which is perpendicular to its long edge. The…
  10. Question 10 (2 marks, Multiple choice) – The least number of squares to be added in the figure to make AB a line of symmetry is
  11. Question 11 (1 mark, Multiple choice) – The following system of linear equations 7x - 3y + z = 0 3x - y + z = 0 x - y - z = 0 has:
  12. Question 12 (1 mark, Multiple choice) – The acceleration of a body travelling in a straight line is given by a = -C 1 - C 2v2 where v is the velocity, and C 1, C 2 are positive constants.…
  13. Question 13 (1 mark, Multiple choice) – The three-dimensional stress-strain relationship for an isotropic material is given as Bmatrix xx\\ yy\\ zz\\ yz\\ xz\\ xyBmatrix =…
  14. Question 14 (1 mark, Multiple choice) – Consider the free vibration responses P, Q, R and S (shown in the figure) of a single degree of freedom spring-mass-damper system with the same…
  15. Question 15 (1 mark, Multiple choice) – For a single degree of freedom spring-mass-damper system subjected to harmonic forcing, the part of the motion (response) that decays due to damping…
  16. Question 16 (1 mark, Multiple choice) – For an ideal gas, the specific heat at constant pressure is 1147 J/kg K and the ratio of specific heats is equal to 1.33. What is the value of the gas…
  17. Question 17 (1 mark, Multiple choice) – A surrogate liquid hydrocarbon fuel, approximated as C 10H 12, is being burned in a land-based gas turbine combustor with dry air (79% N 2 and 21% O 2…
  18. Question 18 (1 mark, Multiple choice) – In the figure shown below, various thermodynamics processes for an ideal gas are represented. Match each curve with the process that it best…
  19. Question 19 (1 mark, Multiple choice) – In an airbreathing gas turbine engine, the combustor inlet temperature is 600 K. The heating value of the fuel is 43.4 106 J/kg. Assume C p to be 1100…
  20. Question 20 (1 mark, Multiple choice) – Which one of the following figures represents the drag polar of a general aviation aircraft?
  21. Question 21 (1 mark, Multiple choice) – In the context of steady, inviscid, incompressible flows, consider the superposition of a uniform flow with speed U along the positive x-axis (from…
  22. Question 22 (1 mark, Multiple choice) – On Day 1, an aircraft flies with a speed of V 1 m/s at an altitude where the temperature is T 1 K. On Day 2, the same aircraft flies with a speed of…
  23. Question 23 (1 mark, Multiple choice) – Consider a steady, isentropic, supersonic flow (Mach number M > 1) entering a Convergent-Divergent (CD) duct as shown in the figure. Which one of the…
  24. Question 24 (1 mark, Multiple choice) – Consider steady, incompressible, inviscid flow past two airfoils shown in the figure. The coefficient of pressure at the trailing edge of the airfoil…
  25. Question 25 (1 mark, Multiple select) – Which of the following options is/are correct? (A) The stress-strain graph for a nonlinear elastic material is as shown in the figure [Figure: a curve…
  26. Question 26 (1 mark, Multiple select) – Which of the following statements is/are correct about a satellite moving in a geostationary orbit?
  27. Question 27 (1 mark, Multiple select) – In a conventional configuration airplane, the rudder can be used:
  28. Question 28 (1 mark, Multiple select) – Which of the following statements about a general aviation aircraft, while operating at point Q in the V-n diagram, is/are true?
  29. Question 29 (1 mark, Numerical answer) – Two fair dice with numbered faces are rolled together. The faces are numbered from 1 to 6. The probability of getting odd numbers on both the dice is…
  30. Question 30 (1 mark, Numerical answer) – A particle acted upon by a constant force 4 i + j - 3 k N is displaced from point A with position vector i + 2 j + 3 k m to point B with position…
  31. Question 31 (1 mark, Numerical answer) – Using Trapezoidal rule with one interval, the approximate value of the definite integral: 12 dx1 + x2 = (rounded off to 2 decimal places).
  32. Question 32 (1 mark, Numerical answer) – A material has Poisson's ratio = 0.5 and Young's modulus E = 2500 MPa. The percentage change in its volume when subjected to a hydrostatic stress of…
  33. Question 33 (1 mark, Numerical answer) – An airplane experiences a net vertical ground reaction of 15000 N during landing. The weight of the airplane is 10000 N. The landing vertical load…
  34. Question 34 (1 mark, Numerical answer) – An aircraft with a turbojet engine is flying with 250 m/s speed at an altitude, where the density of air is 1 kg/m3. The inlet area of the engine is 1…
  35. Question 35 (1 mark, Numerical answer) – Using thin airfoil theory, the lift coefficient of a NACA 0012 airfoil placed at 5o angle of attack in a uniform flow is (rounded off to 2 decimal…
  36. Question 36 (2 marks, Multiple choice) – Given y = epx qx, where p and q are non-zero real numbers, the value of the differential expression d2ydx2 - 2pdydx + (p2 + q2)y is
  37. Question 37 (2 marks, Multiple choice) – The volume of the solid formed by a complete rotation of the shaded portion of the circle of radius R about the y-axis is k R3. The value of k is:
  38. Question 38 (2 marks, Multiple choice) – As per the International Standard Atmosphere model, which one of the following options about density variation with increase in altitude in the…
  39. Question 39 (2 marks, Multiple choice) – At a point in the trajectory of an unpowered space vehicle moving about the Earth, the altitude above the mean sea level is 600 km, and the speed with…
  40. Question 40 (2 marks, Multiple choice) – A multistage axial compressor, with overall isentropic efficiency of 0.83, is used to compress air at a stagnation temperature of 300 K through a…
  41. Question 41 (2 marks, Multiple choice) – An aircraft with a turbojet engine is flying at 250 m/s. The uninstalled thrust produced by the engine is 60000 N. The heating value of the fuel is 44…
  42. Question 42 (2 marks, Multiple choice) – Consider a flat plate, with a sharp leading edge, placed in a uniform flow of speed U. The direction of the free-stream flow is aligned with the…
  43. Question 43 (2 marks, Multiple choice) – Shock structures for flow at three different Mach numbers over a given wedge are shown in the figure below. Assuming that only the weak shock…
  44. Question 44 (2 marks, Multiple choice) – Air flowing at Mach number M = 2 from left to right accelerates to M = 3 across an expansion corner as shown in the figure. What is the value of (the…
  45. Question 45 (2 marks, Multiple select) – Consider the function f(x) = cases x2 & for x < 0 \\ x & for x 0 cases where x is real. Which of the following statements is/are correct?
  46. Question 46 (2 marks, Multiple select) – The figure shows plots of two yield loci for an isotropic material, where I and II are the principal stresses, and Y is the yield stress in uniaxial…
  47. Question 47 (2 marks, Multiple select) – Which of the following statements about absolute ceiling and service ceiling for a piston-propeller aircraft is/are correct?
  48. Question 48 (2 marks, Multiple select) – For an airplane having directional / weathercock static stability, which of the following options is/are correct? (B) The variation of yawing moment…
  49. Question 49 (2 marks, Multiple select) – Which of the following statements is/are TRUE for an axial turbine?
  50. Question 50 (2 marks, Multiple select) – Which of the following statements is/are TRUE for a single stage axial compressor?
  51. Question 51 (2 marks, Numerical answer) – Consider the matrix A = bmatrix 5 & k \\ -4 & -1 bmatrix, where k is a constant. If the determinant of A is 3, then the ratio of the largest…
  52. Question 52 (2 marks, Numerical answer) – The state of stress at a point is caused by two separate loading cases. One of them produces a pure uniaxial tension along the x' direction, and other…
  53. Question 53 (2 marks, Numerical answer) – In the figure shown below, the magnitude of internal force in member BC is N (rounded off to 1 decimal place).
  54. Question 54 (2 marks, Numerical answer) – The cross section of a thin-walled beam with uniform wall thickness t, shown in the figure, is subjected to a bending moment M x = 10 Nm. If h = 1 m…
  55. Question 55 (2 marks, Numerical answer) – The equations of motion for a two degrees of freedom undamped spring-mass system are: m x 1 + 2kx 1 - kx 2 = 0 m x 2 - kx 1 + 2kx 2 = 0 where m and k…
  56. Question 56 (2 marks, Numerical answer) – Consider the plane strain field given by xx = 10xy2, yy = -5x2y and xy = Axy(2x - y) where, A is a constant and xy is the engineering shear strain.…
  57. Question 57 (2 marks, Numerical answer) – A chemical rocket with an ideally expanded flow through the nozzle produces 5 106 N thrust at sea level. The specific impulse of the rocket is 200 s…
  58. Question 58 (2 marks, Numerical answer) – A centrifugal compressor is designed to operate with air. At the leading edge of the tip of the inducer (eye of the impeller), the blade angle is 45o,…
  59. Question 59 (2 marks, Numerical answer) – Consider the following Fanno flow problem: Flow enters a constant area duct at a temperature of 273 K and a Mach number 0.2 and eventually reaches…
  60. Question 60 (2 marks, Numerical answer) – Consider an artificial satellite moving around the Moon in an elliptic orbit. The altitude of the satellite from the Moon's surface at the perigee is…
  61. Question 61 (2 marks, Numerical answer) – For an aircraft moving at 4 km altitude above mean sea level at a Mach number of 0.2, the ratio of equivalent air speed to true air speed is (rounded…
  62. Question 62 (2 marks, Numerical answer) – For a general aviation airplane, one of the complex conjugate pair of eigenvalues for longitudinal dynamics is given by -0.039 0.0567\,i (in SI…
  63. Question 63 (2 marks, Numerical answer) – The figure (not to scale) shows a control volume to estimate the forces on the airfoil with elliptic cross-section. Surfaces 2 and 3 are streamlines.…
  64. Question 64 (2 marks, Numerical answer) – An airplane of mass 1000 kg is in a steady level flight with a speed of 50 m/s. The wing has an elliptic planform with a span of 20 m and planform…
  65. Question 65 (2 marks, Numerical answer) – It is desired to estimate the aerodynamic drag, D, on a car traveling at a speed of 30 m/s. A one-third scale model of the car is tested in a…