GATE 2026 AE – Previous Year Questions with Solutions
All 65 questions of GATE 2026 AE with answers and explanations. Read each question, then practise it by topic or as a full paper.
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- Question 1 – "He often the numbers. False claims are not going to help. Honesty trust", said the manager. Choose the option with the correct order of words to fill…
- Question 2 – In the sequence of tiles shown below, the missing tile indicated by the question mark should be
- Question 3 – A school has 100 students distributed among 1st to 10th standards. Based on this, which one of the following statements is always correct?
- Question 4 – How many 3-digit numbers can be formed using three distinct single digit prime numbers?
- Question 5 – In a group of students, 10 students like Mathematics, 12 students like English, 4 students like both Mathematics and English, and 6 students like…
- Question 6 – Charity : P :: Retaliation : Q Choose the appropriate pair of words P and Q that fit the analogy.
- Question 7 – A paper shown in Panel I is folded along the dashed lines (- - -) to construct a cube. The shaded regions shown in Panel I appear on the outer surface…
- Question 8 – Consider the cube shown below with its 8 corners labelled a, b, c, d, e, f, g, and h. The figure is representative. All corners are to be colored such…
- Question 9 – Four hills H1, H2, H3, and H4 are present in an area. The following observations are made about them: i. Neither H2 nor H3 is the easternmost hill.…
- Question 10 – As shown in the figure, circle C 1 with center O 1 and radius r 1 touches the square VWXY at points P and Q while circle C 2 with center O 2 and…
- Question 11 – Consider the contour C shown in the figure below. For the vector F = (x + 2y) e x + (2x + 4y) e y, the integral C F d l = . Here d l represents an…
- Question 12 – The Fourier series representation of a square wave is shown in the figure below. The fluctuations seen near x = 1 are named after which one of the…
- Question 13 – The following equation with respect to (x, t), where a is a non-zero constant, represents . t + a x = 0
- Question 14 – Which one of the following makes an ideal air-standard Stirling cycle?
- Question 15 – In fluid dynamics, d'Alembert's paradox refers to which one of the following?
- Question 16 – The number of independent elastic constants that a fully anisotropic linear elastic material can have is .
- Question 17 – A cantilever beam with an unsymmetric cross-section is subjected to a transverse shear force (P) at its free end. P acts at the shear center of the…
- Question 18 – The figure below depicts two ideal gas turbine cycles, cycle 1-2-3-4-1 and cycle 1-2-3'-4'-1, on a T-s diagram. Which one the following statements is…
- Question 19 – The velocity potential function () given below represents which one of the following? = 5x - 12y
- Question 20 – The fundamental purpose of the Kutta condition in the thin airfoil theory is .
- Question 21 – In the figure shown below, the flow at the nozzle exit is .
- Question 22 – An n n square matrix A satisfies AT = A-1. The determinant of this matrix may take which of the following value(s)?
- Question 23 – Which of the following statements is/are TRUE about the stability of an aircraft?
- Question 24 – For a given air-standard power, the propulsive efficiency of a turbofan engine is more than that of a turbojet engine. Which of the following is/are…
- Question 25 – Shown below are qualitative illustrations of the lift curve for an airfoil when two different control surfaces are in their respective retracted and…
- Question 26 – The state of stress at a point in a 2-D body, in the x-y Cartesian coordinate system, is represented in matrix form as []. The transformation matrix…
- Question 27 – The figure below shows the blading of the rotors of two different axial turbomachines under their typical operating conditions, labelled as…
- Question 28 – A multi-stage axial compressor can be operated at two points, A and B, both of which lie on the same speed line, as shown in the figure below. If is…
- Question 29 – Which of the following statements is/are TRUE regarding critical and drag divergence Mach numbers of a wing?
- Question 30 – A flow is steady, inviscid and one-dimensional, with no shaft work or body forces. Which of the following is/are possible under the given conditions?
- Question 31 – An aircraft starts gliding in power-off condition at an altitude of 4 km. Given that the maximum lift to drag ratio of the aircraft is 15, the maximum…
- Question 32 – If a matrix can be written as A = uvT, where both u and v are n-dimensional real-valued non-zero column vectors, then the rank of the matrix A is…
- Question 33 – The response x(t) of a freely vibrating single degree of freedom underdamped system is given below. In the equation, A and are constants. The damping…
- Question 34 – The vortex shedding frequency behind a landing gear model is found to be 50 Hz when tested in a wind tunnel operating at 5 m/s. If the actual landing…
- Question 35 – An elliptic wing has a span of 6 m and a planform area of 6 m2. When generating a lift coefficient of 0.6, the induced drag it incurs is 10-3 (rounded…
- Question 36 – An earth satellite has the instantaneous position vector r and velocity vector v as given below. Here p and q denote the unit vectors along the x and…
- Question 37 – For the matrix A = bmatrix a & b \\ c & d bmatrix, if the relation a + b = c + d holds and a, b, c, d 0, then which one of the following statements…
- Question 38 – In an ideal turbofan engine shown in the figure below, the compressor is driven by the high pressure turbine, and the fan is driven by the low…
- Question 39 – An ideal rocket has characteristic exhaust velocity of 1200 m/s, mass flow rate of 75 kg/s, thrust coefficient of 1.5, and nozzle throat area of 0.025…
- Question 40 – Consider a unit square body as shown in the figure below. The body is subjected to the deformation field u = -ay and v = ax, where 'a' is a constant.…
- Question 41 – Consider a launch vehicle of mass 10 tons being launched vertically. The vehicle has 8 tons of propellant, which burns completely at a constant rate…
- Question 42 – The figure below shows a compressor stage with station numbers 1, 2, and 3 as indicated. If p 0i, T 0i, and C i refer to the average values of total…
- Question 43 – An experimental study is planned to map out the low-Reynolds number incompressible steady two-dimensional aerodynamic characteristics of a promising…
- Question 44 – Which of the following process(es) is/are involved in the compression of air in an ideal ramjet engine?
- Question 45 – The deformation of an open-section bar subjected to pure torsion can be solved by choosing an appropriate Prandtl stress function. Which of the…
- Question 46 – The figure below shows the velocity triangles at the inlet and outlet of the rotor of a low hub-to-tip ratio axial compressor at the mid-span of the…
- Question 47 – Consider the flow over an oval modeled using the elementary potential flows as shown below. U represents uniform flow velocity and represents…
- Question 48 – What is/are the use(s) of the single horseshoe vortex model of finite wing aerodynamic theory?
- Question 49 – Consider the differential equation with the initial conditions given below. If y(x) is the solution of the equation, the value of the slope, dydx, at…
- Question 50 – An object of mass 1 kg is launched with an initial speed of v o into a large tank filled with a viscous liquid. The liquid exerts a resistive force…
- Question 51 – The minimum value of the function f(x) = x + 2x + 3 for real x is (rounded off to 1 decimal place).
- Question 52 – Isobutane (C 4H 10) is burnt completely in pure oxygen as per the reaction given below. Given that the standard heats of formation (in kcal/mole) of…
- Question 53 – A furnace of 250 MW rating is used to melt and raise the temperature of aluminium from 25 oC to 900 oC. Aluminium has a solid-state specific heat,…
- Question 54 – For an airfoil section the pitching moment coefficient is determined about a reference point that is 0.3 times the chord behind the leading edge. It…
- Question 55 – An earth satellite moves in an elliptical orbit with a perigee altitude of 300 km and an apogee altitude of 3000 km. Assume that the radius of the…
- Question 56 – Consider a finite wing of aspect ratio 10 with span effectiveness factor 0.95. Its airfoil section has a lift slope of 0.106 per degree and a…
- Question 57 – W A and W B are the respective maximum take-off weights of an aircraft for two ambient air conditions given below. Condition A: p = 1 bar, T = 50\,oC;…
- Question 58 – A thin-walled circular tube is made of a material whose magnitude of the ultimate strength, both in tension and compression, is 200 MPa. The mean…
- Question 59 – A system comprising a bar, spring and mass is shown in the figure below. The bar, having negligible mass, is made of a material having Young's modulus…
- Question 60 – A stepped cantilever beam, made of a material having Young's modulus E = 200 GPa, is shown in the figure below. The length and the moment of inertia…
- Question 61 – A centrifugal compressor has a constant-width radial diffuser. The diameters at the diffuser inlet and outlet are 0.2 m and 0.3 m, respectively. The…
- Question 62 – A gas mixture at a pressure of 800 kPa and a density of 5 kg/m3 enters a turbine stage. The temperature of the gas at the nozzle exit and the stage…
- Question 63 – Thin airfoil theory predicts the zero-lift angle of attack L=0 of NACA 2412 airfoil as -2.1. The corresponding prediction of L=0 for NACA 5410 airfoil…
- Question 64 – Consider a centered Prandtl-Meyer expansion fan at a = 4 corner in a Mach 1.78 air flow, as shown in the figure below. The angle (see figure) made by…
- Question 65 – A Mach 1.5 air flow enters a round duct of length 20 cm and diameter 3 cm. If the flow exits with Mach number 1.1, the average Fanning friction factor…