GATE 2017-2018 :: GATE Aeronautical Engineering
- If u(t) is a unit step function, the solution of the differential equation m d2x/dt2 + kx = u(t) in Laplace domain is
- The general solution of the differential equation dy/dx - 2√y = 0 is
- During the ground roll manoeuvre of an aircraft, the force(s) acting on it parallel to the direction of motion
- An aircraft in a steady climb suddenly experiences a 10% drop in thrust. After a new equilibrium is reached at the same speed, the new rate of climb is
- In an aircraft, the dive manoeuvre can be initiated by
- In an aircraft, elevator control effectiveness determines
- For a wing of aspect ratio AR, having an elliptical lift distribution, the induced drag coefficient is (where CL is the lift coefficient)
- Bernoulli's equation is valid under steady state
- The ratio of flight speed to the exhaust velocity for maximum propulsion efficiency is
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A.
only along a streamline in inviscid flow, and between any two points in potential flow.
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B.
between any two points in both inviscid flow and potential flow.
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C.
between any two points in inviscid flow, and only along a streamline in potential flow.
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D.
only along a streamline in both inviscid flow and potential flow.
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