Aerospace Engineering GATE 2020 Questions with Answer

Ques 1 Engineering Mathematics

For f(x)=|x|, with df/dx denoting the derivative, the mean value theorem is not applicable because

Ques 2 Engineering Mathematics

For the function f(x)= e^-λ/σ√2π, where λ=1/ 2σ²(x-μ)² and μ are constants, the maximum occurs at

Ques 3 Engineering Mathematics

y=Ae^mx+Be^-mx where A, B and m are constants, is a solution of

Ques 4 Engineering Mathematics

Given the sum of squares of eigenvalues of A is

Ques 5 Flight Mechanics

The positive high angle-of-attack condition is obtained in a steady pull-out maneuver at the largest permissible angle-of-attack of the wing. Under this condition, at which of the following regions of the wing does the maximum tension occur? (Image of a wing is given with regions labeled I, II, III, and IV)

Ques 6 Flight Mechanics

For conventional airplanes, which one of the following is true regarding roll control derivative (C_lδr = ∂C_l/∂δ_r) and yaw control derivative (C_nδr = ∂C_n/∂δ_r), where δ_r is rudder deflection?

Ques 7 Flight Mechanics

The eigenvalues for phugoid mode of a general aviation airplane at a stable cruise flight condition at low angle of attack are λ1,2=-0.02±i0.25. If the acceleration due to gravity is 9.8 m/s², the equilibrium speed of the airplane is _______ m/s (round off to two decimal places).

Ques 8 Flight Mechanics

For a general aviation airplane with tail efficiency η = 0.95, horizontal tail volume ratio V_H = 0.453, downwash angle slope dε/dα = 0.35, wing lift curve slope C_Lα^w = 4.8 rad^-1, horizontal tail lift curve slope C_Lα^t = 4.4 rad^-1, shift in neutral point location as a percentage of mean aerodynamic chord is _______ (round off to two decimal places).

Ques 9 Flight Mechanics

A single engine, propeller driven, general aviation airplane is flying in cruise at sea-level condition (density of air at sea-level is 1.225 kg/m³) with speed to cover maximum range. For drag coefficient CD=0.025+0.049CL² and wing loading W/S=9844 N/m², the speed of the airplane is _______ m/s (round off to one decimal place).

Ques 10 Flight Mechanics

An airplane of mass 4000 kg and wing reference area 25 m² flying at sea level has a maximum lift coefficient of 1.65. Assume density of air as 1.225 kg/m³ and acceleration due to gravity as 9.8 m/s². Using a factor of safety of 1.25 to account for additional unsteady lift during a sudden pull-up, the speed at which the airplane reaches a load factor of 3.2 is _______ m/s (round off to two decimal places).

Ques 11 Fluid Mechanics

Which of the following statements is true about the effect of increase in temperature on dynamic viscosity of water and air, at room temperature?

Ques 12 Fluid Mechanics

Given access to the complete geometry, surface pressure and shear stress distribution over a body placed in a uniform flow, one can estimate

Ques 13 Fluid Mechanics

A pair of infinitely long, counter-rotating line vortices of the same circulation strength Γ are situated a distance h apart in a fluid, as shown in the figure. The vortices will